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Bhaba Atomic Research Center Scientific Officer (BARC) OCES DGFS interview cracking tips with the aspirants, These are the general tips for each...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/barc-interview-questions-for-mechanical-students/" aria-label="View Post: BARC Interview Questions For Mechanical Students">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"BARC Interview Questions For Mechanical Students","url":"\/\/www.gunkrazy.com\/barc-interview-questions-for-mechanical-students\/","articleBody":"BARC Interview Questions For Mechanical Students\r\nBhaba Atomic Research Center Scientific Officer (BARC) OCES DGFS interview cracking tips with the aspirants, These are the general tips for each candidate preparing for BARC interview (all branches). In order to avail branch specific tips, candidates must themselves focus on the basic concepts of each subject prepared for the interview. If you are good with your concepts, nothing would hinder your aim to reach BARC as a Scientific Officer.\r\n\r\nHighlights of BARC Interview\r\n\r\n \tBARC interview is one of the best interviews a candidate would face which seems more of a one to one discussion with each panel member.\r\n \tThe interviewers or the Scientists of BARC have an amazing approach of judging the abilities of a student where they will give you ample time and hints to think and reply to a question.\r\n \tIf you provide the right answer to a question, the next one will heavily be dependent on the answer. That\u2019s the pattern to test your knowledge.\r\n \tThe panel tests your approach towards a problem. Hence try to give the answer to every possible question and avoid saying \u201cI DON\u2019T KNOW\u201d directly.\r\n \tThey ask the subjects of your interest and questions will be directed from those subjects.\r\n \tEvery interviewer is polite and does not humiliates you even if you make a blunder. So, avoid any sort of hesitation while answering the questions\r\n \tSo it is suggested to just enjoy the interview session as the time will pass by so quickly that you won\u2019t even realize.\r\n\r\nbarc interview questions\r\nAshish Shrivas has shared his experience of interview\u00a0 :\r\nInterview panel is a group of 6- 7 persons\r\n\r\nAt the beginning they told me to write 4 subjects.\r\n\r\nI wrote\r\n\r\nHeat transfer \r\nThermodynamics \r\nFluid mechanics \r\nMechanics of solid\r\n\r\nThe chairman started with fluid mechanics.\r\n\r\nHe draw a tank and at the bottom he made an opening.\r\n\r\nQ1- What will be velocity.\r\nMe- \u221a2gh\r\n\r\nQ2- Now he attached a nozzle and ask what will be change in velocity.\r\nMe- velocity will increase.\r\n\r\nQ3- Variation in pressure.\r\nMe- pressure will decrease.\r\n\r\nQ4-Now he attached a diffuser, and now variation in velocity.\r\nMe- velocity will decrease.\r\n\r\nQ5- variation in pressure.\r\nMe- pressure will increase.\r\n\r\nQ6- Than how flow is possible from low pressure to high pressure.\r\nMe- Tried to explain by Bernoulli's theorem, but he was not satisfied.\r\n\r\nQ6- what is Archimedes principle.\r\nMe- buoyancy is equal to weight of fluid displaced.\r\n\r\nHe draw a trapezoid(iron) at the bottom of the tank and drew two forces on top and bottom surface.\r\n\r\nQ7- which force will be large.\r\nMe- force=wha, so force will depend on both area and depth of surface.\r\n\r\nQ8- Will difference of force will equal to buoyancy.\r\nMe- No, buoyancy will equal to weight of fluid displaced.\r\n\r\nQ9- Why?\r\nMe- It is case of hydraulic paradox, hydraulic force will act on side faces also.\r\n\r\nThen other person started with Heat transfer.\r\n\r\nHe draw two stab connected end to end of same dimensions one with thermal conductivity k and other with k\/2.\r\n\r\nQ10- Draw temperature vs length variation diagram.\r\nMe- Drawn.\r\n\r\nQ11- Which law is used to explain this.\r\nMe- Fourier law of conduction.\r\n\r\nQ12- why is their is change in slope and how much.\r\nMe- Explained.\r\n\r\nQ13- Now their is atmosphere temp. T and thermal coefficient h. Calculate T1( first surface) T2(intermediate temperature) T3(End surface).\r\nMe- Derive 3 equation by Fourier law, said i have 3 equations and 3 unknown so i can easily calculate.\r\n\r\nQ14- Now i double the heat flux, what will be change in temperature variation.\r\nMe- Drawn\r\n\r\nQ15-What will be relation between 1st and 2nd condition slope.\r\nMe- second will be 2 times first.\r\n\r\nQ16-How will temperature vary between slab and atmosphere.\r\nMe-Drawn\r\n\r\nHe draw a open beaker containing water on a furnace.\r\n\r\nQ17- Draw temperature vs time variation diagram.\r\nMe- Drawn\r\n\r\nQ18-Now the specific heat 'c' changes with temperature.\r\nMe- Drawn (it will be parabolic with decreasing slope)\r\n\r\nQ19-Why this curve, and why decreasing slope.\r\nMe-Because as temperature increases c increase so the heat storing capacity increases therefore initially temperature rise rate will be fast and rate will decrease with increasing temperature.\r\n\r\nQ20- How boiling time will change, when we take it to the top of hill.\r\nMe- Thinking.\r\n\r\nQ21- Chairman asked how latent heat varies with pressure.\r\nMe- It increases with decreasing pressure.\r\n\r\nQ22-Than will it take more time to boil?\r\nMe-With decrease in pressure saturation temperature also decreases so it will take less time to reach the boiling temperature but with decrease in pressure latent heat increases so the phase change will be longer.\r\n\r\nQ23- Draw volume vs time diagram for water.\r\nMe- Drawn and at 100\u2103 make a Sharpe increase in volume.\r\n\r\nQ24- Why you have made a Sharpe increase in volume.\r\nMe- Because at 100\u2103 phase change occurs and specific volume of steam is very large than water.\r\n\r\nQ25- Chairman said but we told you to draw for water not steam.\r\nMe-corrected and drew a downward sloping linear line from 100\u2103.\r\n\r\nQ26- Chairman why you have made this curve.\r\nMe- At phase change q.t=m.LT(latent heat) so the evaporating mass is linearly proportional to time so is the remaining mass.\r\n\r\nThen 3rd person started to ask from thermodynamics.\r\n\r\nQ27- What is Boyle's law.\r\nMe- silent\r\n\r\nHe- What hapended?\r\nMe- Sir i forgot, i am confused between constant temperature or pressure.\r\n\r\nHe- Constant temperature.\r\nMe- At constant temperature pressure is inversely proportional to temperature.\r\n\r\nQ28- what is Charles law.\r\nMe- At constant pressure, volume is directly proportional to temperature.\r\n\r\nQ29-Chairman in middle asked according to Boyle's law pv=c, than why when inflating balloon pressure and volume both increase?\r\n\r\nMe-Because while inflating we are adding mass and Boyle's law is applicable to constant mass system.\r\n\r\nQ30-Than how mass is related to pressure and volume.\r\nMe- By ideal gas equation pv=NRT\r\n\r\nOther person draw a Tyre and said assume it have initial condition p,v,t after a long drive the pressure in increased to some p1.\r\n\r\nQ31-Then how much mass should i remove so that the pressure is becomes to p.\r\nMe- calculate the relation.\r\n\r\nThen 4th person started to ask mechanics of solid.\r\n\r\nMake a iron pillar.\r\n\r\nQ32-Draw stress vs length diagram.\r\nMe- Drawn.\r\n\r\nQ33- Chairman asked what will be variation in stress at 12 night and 12 afternoon.\r\nMe-As it is unrestricted expansion so their will be no thermal expansion and length will increase at 12 afternoon but accordingly density will decrease as the mass should remain same so their will be no change in stress.\r\n\r\nQ34- Chairman what is density of iron.\r\nMe- around 7800kg\/m3\r\n\r\nQ35- What will happen if we keep on increasing the length.\r\nMe- Failure due to crushing.\r\n\r\nQ36-Chairman but practically failure occurs prior to crushing.\r\nMe- because of buckling.\r\n\r\nQ37-How buckling load is given.\r\nMe- Euler's formula.\r\n\r\nQ38-For this case what is effective length.\r\nMe- 2l\r\n\r\nQ39- Draw the deflected diagram.\r\nMe- Asked deflection by self weight\r\nHe- yes\r\nMe- Drawn\r\n\r\nQ40-Draw deflection vs length diagram.\r\nMe- Drawn(parabolic)\r\n\r\nQ41- Why you have draw parabolic.\r\nMe- Derived relation.\r\n\r\nQ42- Why this slope.\r\n\r\nMe - Explained.\r\n\r\nThen the 5th person started to asked from Engineering mechanics.\r\n\r\nHe draw a tank and make two holes on it one at bottom other on middle.\r\n\r\n&nbsp;\r\n\r\nQ42- Draw trajectory.\r\nQ43- Distances where they will strike ground x-axis.\r\nQ44-Point of intersection of both jets.","headline":"BARC Interview Questions For Mechanical Students","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/barc-interview-questions-300x174.jpg","height":174,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/dyna-cam-engine-mechanical-seminar-report-pdf-download/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/Dyna-cam-engine_clip_image002-300x226.jpg')"></div><span class="sr-only">link to Dyna-Cam Engine &#8211; Mechanical Seminar Report Pdf Download</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/dyna-cam-engine-mechanical-seminar-report-pdf-download/">Dyna-Cam Engine &#8211; Mechanical Seminar Report Pdf Download</a></p></header><div class="excerpt"><p>Dyna-Cam Engine - Mechanical Seminar Report Pdf Download
Abstract
The original engine is patented and the Company has now made patent applications and received patent pending status for additional...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/dyna-cam-engine-mechanical-seminar-report-pdf-download/" aria-label="View Post: Dyna-Cam Engine &#8211; Mechanical Seminar Report Pdf Download">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Dyna-Cam Engine &#8211; Mechanical Seminar Report Pdf Download","url":"\/\/www.gunkrazy.com\/dyna-cam-engine-mechanical-seminar-report-pdf-download\/","articleBody":"Dyna-Cam Engine - Mechanical Seminar Report Pdf Download\r\nAbstract\r\nThe original engine is patented and the Company has now made patent applications and received patent pending status for additional features that have been refined. Activity and contacts from the website indicate that there are a lot of buyers for this new engine technology.\r\n\r\nThe first production engine has been assembled and completed initial testing. The Company has had to design and build a custom dynamometer on which to complete engine testing. After testing has been completed on the first engine, it was installed in an aircraft like a Cessna 182 or a Piper Cherokee that will be able to demonstrate the engine's performance capability\r\n\r\nAdditional installations are being discussed with owners of several experimental homebuilt aircraft, including, a LancAir, an RV6, a custom designed pusher fashioned after the Long Easy, a new designed homebuilt called the Atlantica, and several others, including a Sea Bee, a Seawind homebuilt, and possibly a Cessna 185. The initial Dyna-Cam Engine to be manufactured and sold is rated at 200 HP. The engine is 13\" in diameter, 40\" long and weighs 300 pounds with basic accessories. It has unique features and major benefits over conventional engines of similar weight and power.The benefits include lower manufacturing costs in equal production, 50% smaller size, 50% fewer replacement parts, better fuel economy, smoother operation, lighter weight, plus nearly 100% higher torque enabling the engine to turn high efficiency propellers with lower noise output.\r\n\r\nDyna-cam engine\r\n\r\nDESIGN OVERVIEW\r\nThe engine has two identical cylindrical blocks that each have six cylinders arranged parallel around the main shaft located in the center. Cylinders of both blocks line up so that six double-ended pistons can fire back and forth between the aligned cylinders of each block Each free floating piston is cut away on the central interior side and fits with precision around a 9\" diameter, four lobe, sinusoidal cam that is keyed to the main shaft.\r\n\r\nAs the pistons fire back and forth, the main cam rolls through the pistons causing the central shaft to turn. All moving surfaces are roller bearing surfaces. Another smaller 5\" cam is attached to the main shaft at the outer end of each block. As each valve cam turns, it pushes against hydraulic lifters which push against the poppet valves inside each cylinder head. The engine is a 4-stroke engine. Because of the design of the main cam, each of the twelve cylinders fires with every revolution of the shaft, in contrast to three times with conventional six-cylinder engines. The engine can be described as a free piston, axially cam-drive engine.\r\n\r\nExternal accessory systems manage air intake, fuel, oil flow, cooling and exhaust. All accessory systems operate similar to standard systems used on conventional engines and may be easily updated with the latest state-of-the-art technology. Devices used on normal piston engines can be adapted to the Dyna-Cam Engine for achieving the lowest possible emissions or higher power output, i.e. electronic ignition, state of the art emissions devices, or high tech fuel injection. Higher torque at lower RPMs and reduced internal friction allow more work to be accomplished by the Dyna-Cam for the same measured quantity of fuel when compared to the conventional piston engine.\r\n\r\nThe functional and operational design of the Dyna-Cam Engine is complete. Forty prototype units have been tested and rebuilt resulting in the final design that was certified. Minor changes have been completed to expedite assembly and facilitate cost effective mass production. The first engines are now in production and purchase orders and down payments are being taken.\r\n\r\nThe Dyna-Cam is a good design and seems to offer important advantages, particularly for aviation, due to the RPM at which the horsepower is developed. There is no need for prop reduction gears which is in itself significant. The Dyna-Cam is not a miracle engine, it is just a different configuration with unique advantages.\r\n\r\nThe Dyna-Cam engine has the big advantage that an earlier version was tested and used successfully for over twenty years by the U.S. Navy as the power plant for the Mark 46 torpedo which is discussed further on the page titled R&amp;D. This proved that the basic design of the piston and cam actuation was a success.\r\n\r\nCompared to conventional engines of similar horsepower, the Dyna-Cam has demonstrated these major advantages:\r\n\r\n \tHigher Power &amp; Torque\r\n \tEasier to Rebuild\r\n \tHigher Reliability\r\n \tQuieter Operation\r\n \t50% Fewer Parts\r\n \t50% Smaller Size\r\n \tBetter Fuel Economy\r\n \tLonger Time Between Overhauls\r\n \tVery Fast Throttle Response\r\n \tLiquid Cooled\r\n \tLess Weight\r\n \tSmooth \"vibration free\" Operation\r\n \tLower Maintenance Cost\r\n\r\nSPECIFICATIONS\r\nWith small turbine shape, the Dyna-Cam takes 50% less space for installation yet produces twice the torque output.Depending on the success of our initial engine and possibly additional funding, larger and smaller engine sizes may be developed, to deliver more or less horsepower, turbo, or supercharged engines and engines fueled by diesel or jet fuel.\r\nKey Specifications\r\n\r\n \t\u00a0200 HP @ 2000 RPM\r\n \t175 HP @ 1600 RPM\r\n \t650ft.lb torque @ 1200 RPM\r\n \t525ft.lb. torque @ 2000 RPM\r\n \t373 Cubic Inches\r\n \t265 Lbs Dry Weight\r\n \t12 Cylinder, 6 Piston\r\n \t3.25\" Bore - 3.75\" Stroke\r\n \t.40 Lb.\/Hp-Hr @ Cruise\r\n \t.47 Lb.\/Hp-Hr @ Full pwr.\r\n \tFuel Injected\r\n \tDual Ignition or Single\r\n \t13\" Diameter x 40\" Length\r\n\r\nFUEL USED\r\nWhen supercharged or turbocharged, the Dyna-Cam will still produce over 95% of its original power when fueled by compressed natural gas (CNG) or propane. When conventional engines are modified to use low emissions fuel like compressed natural gas or propane, they lose up to 30% of their power. To be fueled by CNG or propane, the Dyna-Cam engine only has to have the proper fuel system attached. Potentially, motor homes and busses will be able to use Dyna-Cam engines fueled by CNG, propane or unleaded gasoline, which will result in lower emissions, lower vibration and lower noise levels. Diesel is also used as a fuel in dyna-cam engine.\r\n\r\nDownload Report :\r\nDyna-Cam Engine - Mechanical Seminar Report Pdf Download\r\npages :16\r\n\r\nClick here to Download Seminar on Dynacam Engine report\u00a0","headline":"Dyna-Cam Engine &#8211; Mechanical Seminar Report Pdf Download","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/Dyna-cam-engine_clip_image002-300x226.jpg","height":226,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/safety-airbags-in-cars-seminar-report-download/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/smart-air-bag-300x261.jpg')"></div><span class="sr-only">link to Safety Airbags in Cars &#8211; Seminar Report Download</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/safety-airbags-in-cars-seminar-report-download/">Safety Airbags in Cars &#8211; Seminar Report Download</a></p></header><div class="excerpt"><p>Safety Airbags in Cars - Seminar pdf Report Download
ABSTRACT
The present topic is about safety airbags in cars. No safety device has consumed more attention and resources than the airbag. It is...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/safety-airbags-in-cars-seminar-report-download/" aria-label="View Post: Safety Airbags in Cars &#8211; Seminar Report Download">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Safety Airbags in Cars &#8211; Seminar Report Download","url":"\/\/www.gunkrazy.com\/safety-airbags-in-cars-seminar-report-download\/","articleBody":"Safety Airbags in Cars - Seminar pdf Report Download\r\nABSTRACT\r\nThe present topic is about safety airbags in cars. No safety device has consumed more attention and resources than the airbag. It is known with high confidence that when a crash occurs , the presence of airbag reduces fatality risk to drivers.\r\nAirbags are subject of serious government and industry research. My seminar takes you to the history, development and working aspects of airbag.\r\n\r\nINTRODUCTION\r\n\r\nFor years, the trusty seat belt provided the sole form of passive restraint in our cars. There were debated about their safety, especially relating to children. But over time, mush of the country adopted mandatory seat-belt laws. Statistics have shown that the use of seat belts has saved thousands of lives that might have been lost in collisions. Air Bags have been under development for many years. The attraction of a soft pillow to land against in a crash must be very strong \u2013 the first patent on an inflatable crash-landing device for airplanes was filed during World War II.\r\n\r\nIn the 1980\u2019s the first commercial air bags appeared in automobiles .Since 1988, all new cars have been required to have air bags on both driver and passenger sides (Light Trucks came under the rule in 1999). Todate, Statistics show that air bags reduce the risk of dying in a direct frontal crash by 30 percent. Newer than steering Wheel mounted or Dashboard mounted bags, but not so widely used, are seat-mounted and door mounted side air-bags. Some experts say that within the next few years, our cars will go from having dual air bags top having six or even eight air bags. Having evoked some of the controversy that surrounded seat-belt use in its early years, air bags are the subject of serious government and industry research and tests.\r\n\r\nTHE BASICS OF AIR BAGS\r\n\r\nBefore looking at specifics, let\u2019s review our knowledge of the laws of the motion. First, we know that moving objects have momentum (the product of the mass and velocity of an object. Unless an outside force acts on an object, the object will continue to move its present speed and direction. Cars consist of several objects, including the vehicle itself, Loose objects in the car and, of course, passengers. If these objects are not restrained, they will continue moving at whatever speed the car is traveling at, even if the car is stopped by a collision.\r\n\r\nStopping an object\u2019s momentum requires force acting over a period of time. When a car crashes, the force required to stop an object is very great because the car\u2019s momentum has changed instantly while the passengers\u2019 has not much time to work with. The goal of any supplemental restraint system is to help stop the passenger while doing as little damage to him or her as possible.\r\n\r\nWhat an air bag wants to do is to slow the passengers\u2019 speed to zero with little or no damage. The constraints that it has to work within are huge. The air bag has the space between the passenger and the steering wheel or dashboard and a fraction of a second to work with. Even that tiny amount of space and time is valuable, however, if the system can slow the passenger evenly rather than forcing an abrupt halt to his or her motion.\r\n\r\nsmart air bag\r\n\r\nMAIN PARTS OF AIR BAG\r\n\r\nThere are three parts to an air bag that help to accomplish this feat:\r\n1. Bag\r\n2. Sensor\r\n3. Inflation system\r\n\r\nBAG\r\nThe bag itself is made of a thin, nylon fabric, which is folded into the steering wheel or dashboard or, more recently, the seat or door. The powdery substance released from their sir bag, by the way, is regular corn starch or talcum powder, which is used by the air bag manufacturers to\r\nkeep the bags pliable and lubricated while they\u2019re in storage.\r\n\r\nSENSOR\r\nThe sensor is the device that tells the bag to inflate. It works with the control module to discriminate between crash and non-crash events. These sensors measure the severity of the impact. Inflation happens when there is a collision force equal to running into a brick wall at 16 to 24 Km per hour.\r\nThey are setup so that sudden negative acceleration will cause the contacts to close, telling the control module that a crash before airbag deployment.\r\n\r\nINFLATION SYSTEM\r\nThe air bag\u2019s inflation system reacts sodium azide(NaN3) with potassium nitrate (KNO3) to produce large volume of nitrogen gas. Hot Blasts of the nitrogen inflate the air bag from its storage site up to 322Kmph. A Second later, the gas quickly dissipates through a tiny holes in the bag, thus deflating the bag so you can move.\r\n\r\nCONSTRUCTION OF AIR BAGS\r\nAirbag are assemblies consisting of the airbag (made of Nylon), inflator modules and sensor housing, electrical connectors (Clock spring), airbag retainer and the cover. The driver\u2019s side bag is mounted in the center of the steering wheel as shown in fig.\r\n\r\nWORKING OF AIR BAGS\r\nAir Bags are designed to inflate in frontal or frontal-angle impacts in which the car strikes an immovable object at more than about 16 Kilometers per hour or another car at twice that speed. After a collision, sensors sense an electric current to an igniter system or, in some cases, to the computerized control unit. This unit evaluates the situation and then sends an electrical impulse to the igniter system. The electric current heats a filament (wire), which then ignites a capsule. The Ignited capsule supplies the heat to ignite gas-generating pellets. In most systems, the pellets are made of sodium azide and produce nitrogen gas when they burn. In other systems, pressurized argon gas is used instead. The gas then expands quickly and inflates the airbag, which then breaks through a plastic cover in the steering wheel or, the dashboard on the passenger side. The whole process takes about 0.1 second from the exact moment the crash is detected. The air bag starts to deflate immediately, venting the harmless gas through holes in the back of the bag of the through the fabric itself.\r\nDownload Seminar Report :\r\nSeminar on Safety Airbags in Cars PDF Download\u00a0\r\n\r\npages : 22 nos\u00a0\r\n\r\nFile size : 1 mb\u00a0\r\n\r\nClick here to Download Seminar report pdf Safety Airbags in cars\u00a0","headline":"Safety Airbags in Cars &#8211; Seminar Report Download","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/smart-air-bag-300x261.jpg","height":261,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/hydroelectric-power-plant-diagram-working-advantages-and-disadvantages/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/hydro-electric-power-plant-diagram-300x154.jpg')"></div><span class="sr-only">link to Hydroelectric power plant &#8211; Diagram , Working , Advantages</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/hydroelectric-power-plant-diagram-working-advantages-and-disadvantages/">Hydroelectric power plant &#8211; Diagram , Working , Advantages</a></p></header><div class="excerpt"><p>Hydroelectric power plant
 Working principle
Hydroelectric power plant (Hydel plant) utilizes the potential energy of water stored in a dam built across the river. The potential energy of the...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/hydroelectric-power-plant-diagram-working-advantages-and-disadvantages/" aria-label="View Post: Hydroelectric power plant &#8211; Diagram , Working , Advantages">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Hydroelectric power plant &#8211; Diagram , Working , Advantages","url":"\/\/www.gunkrazy.com\/hydroelectric-power-plant-diagram-working-advantages-and-disadvantages\/","articleBody":"Hydroelectric power plant\r\n Working principle\r\nHydroelectric power plant (Hydel plant) utilizes the potential energy of water stored in a dam built across the river. The potential energy of the stored water is converted into kinetic energy by first passing it through the penstock pipe. The kinetic energy of the water is then converted into mechanical energy in a water turbine. The turbine is coupled to the electric generator. The mechanical energy available at the shaft of the turbine is converted into electrical energy by means of the generator.\r\nBecause gravity provides the force which makes the waterfall, the energy stored in the water is called gravitational potential energy.\r\n\r\n Layout of Hydroelectric power plant\r\nFig. shows the schematic representation of a Hydroelectric power plant.\r\nThe main components are\r\n\u2022 Water reservoir\r\n\u2022 Dam\r\n\u2022 Spillway\r\n\u2022 Gate\r\n\u2022 Pressure tunnel\r\n\u2022 Surge tank\r\n\u2022 Penstock\r\n\u2022 Water turbine\r\n\u2022 Draft tube\r\n\u2022 Tail race level\r\n\u2022 Powerhouse\r\n\r\n\r\n hydroelectric power plant diagram\r\n\r\nWater reservoir: \r\n\r\nIn a reservoir the water collected from the catchment area during the rainy season is stored behind a dam. Catchment area gets its water from rains and streams. Continuous availability of water is a basic necessity for a hydroelectric power plant. The level of the water surface in the reservoir is called the Headwater level. The water head available for power generation depends on the reservoir height.\r\n\r\nDam: \r\n\r\nthe purpose of the dam is to store the water and to regulate the out going flow of water. The dam helps to store all the incoming water. It also helps to increase the head of the water. In order to generate a required quantity of power, it is necessary that a sufficient head is available.\r\n\r\nSpillway: \r\n\r\nExcess accumulation of water endangers the stability of dam construction. Also in order to avoid the overflow of water out of the dam especially during rainy seasons spillways are provided. This prevents the rise of the water level in the dam. Spillways are passages that allow the excess water to flow to a different storage area away from the dam.\r\n\r\nGate: \r\n\r\nA gate is used to regulate or control the flow of water from the dam.\r\n\r\nPressure tunnel: \r\n\r\nIt is a passage that carries water from the reservoir to the surge tank.\r\n\r\nSurge tank: \r\n\r\nA surge tank is a small reservoir or tank in which the water level rises or falls due to sudden changes in pressure. There may a sudden increase of pressure in the penstock pipe due to sudden backflow of water, as the load on the turbine is reduced. This sudden rise of pressure in the penstock pipe is known as water hammer.\r\n\r\nPenstock:\r\n\r\nPenstock pipe is used to bring water from the dam to the hydraulic turbine. Penstock pipes are made up of steel or reinforced concrete. The turbine is installed at a lower level from the dam. Penstock is provided with a gate valve at the inlet to completely close the water supply.\r\nIt has a control valve to control the water flow rate into the turbine. Water turbine or hydraulic turbine (Prime mover): The hydraulic turbine converts the energy of water into mechanical energy. The mechanical energy (rotation) available on the turbine shaft is coupled to the shaft of an electric generator and electricity is produced. The water after performing the work on the turbine blade is discharged through the draft tube.\r\n\r\nThe prime movers which are in common use are Pelton wheel, Kaplan turbine, Francis turbine.\r\n\r\n\r\n\r\nRead more :\r\n\r\n \tIntroduction To Hydraulic Turbine and Classification Of hydraulic turbine\r\n \tIntroduction to Hydraulic (Water) Turbine -Working Of Impulse and Reaction Turbine\r\n\r\n\r\n\r\n\r\nDraft tube: \r\n\r\nDraft tube is connected to the outlet of the turbine. It converts the kinetic energy available in the water into pressure energy in the diverging portion. Thus, it maintains a pressure of just above the atmospheric at the end of the draft tube to move the water into a tailrace. Water from the tailrace is released for irrigation purposes.\r\n\r\nTailrace level: \r\n\r\nTailrace is a water path to lead the water discharged from the turbine to the river or canal. The water held in the tailrace is called the Tailrace water level.\r\n\r\nPower House:\r\n\r\nThe powerhouse accommodates the water turbine, generator, transformer, and control room. As the water rushes through the turbine, it spins the turbine shaft, which is coupled to the electric generator. The generator has a rotating electromagnet called a rotor and a stationary part called a stator. The rotor creates a magnetic field that produces an electric charge in the stator. The charge is transmitted as electricity. The step-up transformer increases the voltage of the current coming from the stator. The electricity is distributed through power lines.\r\n Classification of Hydroelectric power plant\r\nHydroelectric power plants are usually classified according to the available of head of water\r\n\u2022 High head power plants\r\n\u2022 Medium head power plants\r\n\u2022 Low head power plants\r\n\r\nHigh head power plants: When the operating head of water exceeds 70 meters, the plant is known as High head power plant. Pelton wheel turbine is the prime mover used.\r\n\r\nMedium head power plants: When the water ranges from 15 to 70 meters, then the power plant is known as a Medium head power plant. It uses Francis Turbine.\r\n\r\nLow head power plants: When the head is less than 15 meters, the plant is named as Low head power plant. It uses Francis or Kaplan turbine as the prime mover.\r\n\u00a0Advantages of hydroelectric power plant\r\n1. The water source is perennially available. No fuel is required to be burnt to generate electricity. It is aptly termed as 'the white coal'. Water passes through turbines to produce work and downstream its utility remains undiminished for irrigation of farms and quenching the thirst of people in the vicinity.\r\n2. The running costs of hydropower installations are very low as compared to thermal or nuclear power stations. In thermal stations, besides the cost of fuel, one has to take into account the transportation cost of the fuel also.\r\n3. There is no problem with regard to the disposal of ash as in a thermal station. The problem of emission of polluting gases and particulates to the atmosphere also does not exist. Hydropower does not produce any greenhouse effect, cause the pernicious acid rain and emit obnoxious NO.\r\n4. The hydraulic turbine can be switched on and off in a very short time. In a thermal or nuclear power plant the steam turbine is put on turning gear for about two days during start-up and shut-down.\r\n5. The hydraulic power plant is relatively simple in concept and self-contained in operation. Its system reliability is much greater than that of other power plants.\r\n6. Modern hydropower equipment has a greater life expectancy and can easily last 50 years or more. This can be compared with an effective life of about 30 years of a thermal or nuclear station.\r\n\r\n7. Due to its great ease of taking up and throwing off the load, hydropower can be used as the ideal spinning reserve in a system mix of thermal, hydro, and nuclear power stations.\r\n8. Modern hydro-generators give high efficiency over a considerable range of load. This helps in improving the system efficiency.\r\n9. Hydro-plants provide ancillary benefits like irrigation, flood control, afforestation, navigation, and aqua-culture.\r\n10. Being simple in design and operation, the hydro-plants do not require highly skilled workers. Manpower requirement is also low.\r\n\u00a0Disadvantages of Water Power\r\n1. Hydro-power projects are capital-intensive with a low rate of return. The annual interest of this capital cost is a large part of the annual cost of hydropower installations.\r\n2. The gestation period of hydro projects is quite large. The gap between the foundation and completion of a project may extend from ten to fifteen years.\r\n3. Power generation is dependent on the quantity of water available, which may vary from season to season and year to year. If the rainfall is in time and adequate, then only the satisfactory operation of the plant can be expected.\r\n4. Such plants are often far away from the load center and require long transmission lines to deliver power. Thus the cost of transmission lines and losses in them are more.\r\n5. Large hydro-plants disturb the ecology of the area, by way of deforestation, destroying vegetation and uprooting people. Strong public opinion against. The erection of such plants is a deterrent factor. The emphasis is now more on small, mini and micro hydel stations.\r\nHydroelectric power plant in India\r\n\r\n \tSrisailam Hydel power plant \u2013 AP \u2013 770 MW\r\n \tUpper sileru Hydor electric project \u2013 AP - 120\r\n \tKodayar hydro electric power plant \u2013 TN \u2013 100 MW\r\n \tIddiki hydel project \u2013 Kerala \u2013 800 MW","headline":"Hydroelectric power plant &#8211; Diagram , Working , Advantages","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"May 17, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/hydro-electric-power-plant-diagram-300x154.jpg","height":154,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/diesel-power-plant-working-construction/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/diesel-power-plant-diagram-300x193.jpg')"></div><span class="sr-only">link to Diesel power plant &#8211; Diagram , Parts , Working , Advantages and Disadvantages</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/diesel-power-plant-working-construction/">Diesel power plant &#8211; Diagram , Parts , Working , Advantages and Disadvantages</a></p></header><div class="excerpt"><p>Diesel power plant - Diagram , Parts , Working , Advantages and Disadvantages
Diesel power plant
Introduction
This is a fossil fuel plant since diesel is a fossil fuel. Diesel engine power plants...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/diesel-power-plant-working-construction/" aria-label="View Post: Diesel power plant &#8211; Diagram , Parts , Working , Advantages and Disadvantages">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Diesel power plant &#8211; Diagram , Parts , Working , Advantages and Disadvantages","url":"\/\/www.gunkrazy.com\/diesel-power-plant-working-construction\/","articleBody":"Diesel power plant - Diagram , Parts , Working , Advantages and Disadvantages\r\nDiesel power plant\r\nIntroduction\r\nThis is a fossil fuel plant since diesel is a fossil fuel. Diesel engine power plants are installed where supply of coal and water is not available in sufficient quantity.\r\n(i) These plants produce the power in the range of 2 to 50 MW.\r\n(ii) They are used as standby sets for continuity of supply such as hospitals, telephone exchanges, radio stations, cinema theatres and industries.\r\n(iii) They are suitable for mobile power generation and widely used in railways and ships.\r\n(iv) They are reliable compared to other plants.\r\n(v) Diesel power plants are becoming more popular because of difficulties experienced in construction of new hydel plants and thermal plants\r\n\r\nLayout of Diesel Power plant\r\n\r\nThe essential components of diesel power plant are\r\n\r\n\u2022 Diesel engine\r\n\u2022 Air filter and super charger\r\n\u2022 Engine starting system\r\n\u2022 Fuel system\r\n\u2022 Lubrication system\r\n\u2022 Cooling system\r\n\u2022 Governing system\r\n\u2022 Exhaust system\r\n\r\nDiesel engine:\r\nThis is the main component of a diesel power plant. The engines are classified as two stroke engine and four stroke engines. Engines are generally directly coupled to the generator for developing power. In diesel engines, air admitted into the cylinder is compressed. At the end of compression stroke, fuel is injected. The fuel is burned and the burning gases expand and do work on the piston. The shaft of the engine is directly coupled to the generator. After the combustion, the burned gases are exhausted to the atmosphere.\r\n\r\nread more :\u00a0Important fuel specifications for Diesel Used In IC Engine\r\n\r\nAir filter and supercharger\r\nThe air filter is used to remove the dust from the air which is taken by the engine. Air filters may be of dry type, which is made up of felt, wool or cloth. In oil bath type of filters, the air is swept over a bath of oil so that dust particles get coated. The function of the supercharger is to increase the pressure of the air supplied to the engine and thereby the power of the engine is increased.\r\n\r\nEngine starting system\r\nDiesel engine used in diesel power plants is not self starting. Engine starting system includes air compressor and starting air tank. This is used to start the engine in cold conditions by supplying the air.\r\n\r\nFuel system\r\nIt includes the storage tank, fuel pump, fuel transfer pump, strainers and heaters. Pump draws diesel from the storage tank and supplies it to the small day tank through the filter. Day tank supplies the daily fuel need for the engine. The day tank is usually placed high so that diesel flows to engine under gravity.\r\nDiesel is again filtered before being injected into the engine by the fuel injection pump.\r\n\r\nThe fuel injection system performs the following functions.\r\n\r\n\u2022 Filter the fuel\r\n\u2022 Meter the correct quantity of the fuel to be injected\r\n\u2022 Time the injection process\r\n\u2022 Regulate the fuel supply\r\n\u2022 Secure fine atomization of fuel oil\r\n\u2022 Distribute the atomized fuel properly in the combustion; chamber.\r\n\r\nThe fuel is supplied to the engine according to the load on the plant.\r\n\r\nread more :\u00a0Why Diesel engines are Not used in Motor Bikes or Mopeds ?\r\n\r\nLubrication system\r\nIt includes oil pumps, oil tanks, coolers and pipes. It is used to reduce the friction of moving parts and reduce wear and tear of the engine parts such as cylinder walls and piston. Lubrication oil which gets heated due to the friction of the moving parts is cooled before re-circulation.\r\n\r\nIn the lubrication system the oil is pumped from the lubricating oil tank through the oil cooler where the oil is cooled by the cold water entering the engine. The hot oil after cooling the moving parts return to the lubricating oil tank.\r\n\r\ndiesel power plant diagram\r\n\r\nCooling system\r\nThe temperature of the burning fuel inside the engine cylinder is in the order of 1500 0 C to 2000 0 C. In order to lower this temperature, water is circulated around the engine. The water envelopes (water jacket) the engine, the heat from the cylinder, piston, combustion chamber etc, is carried by the circulating water. The hot water leaving the jacket is passed through the heat exchanger. The heat from the heat exchanger is carried away by the raw water circulated through the heat exchanger and is cooled in the cooling tower.\r\n\r\nGoverning system\r\nIt is used to regulate the speed of the engine. This is done by varying the fuel supply according to the engine load.\r\n\r\nExhaust system\r\nThe exhaust gases coming out of the engine is very noisy. In order to reduce the noise a silencer (muffler) is used.\r\n\r\n\u00a0Working of Diesel Power Plant\r\nThe air and fuel mixture act as a working medium in diesel engine power plant. The atmosphere air enters inside the combustion chamber during the suction stroke and the fuel is injected through the injection pump. The air and fuel is mixed inside the engine and the charge is ignited due to high compression inside the engine cylinder. The basic principle in diesel engine is that, the thermal energy is converted into mechanical energy and this mechanical energy is converted into electrical energy to produce the power by using generator or alternator.\r\n\r\n\u00a0Applications of Diesel Engines in Power Field\r\n\r\nThe diesel electric power plants are ch briefly used in the following field.\r\n(a) Peak load plant:\r\n\r\nDiesel plants can be used in combination with thermal or hydro-plants as peak load units. They can be easily started or stopped at a short notice to meet the peak demand.\r\n(b) Mobile plant:\r\n\r\nDiesel plants mounted on trailers can be used for temporary or emergency purposes such as for supplying power to large civil engineering works.\r\n(c) Standby unit:\r\n\r\nIf the main unit fails or cannot cope up with the demand, a diesel plant can supply the necessary power. For example, if water available in a hydro-plant is not adequately available due to less rainfall, the diesel station can operate in parallel to generate the short fall in power.\r\n(d) Emergency plant: \r\n\r\nDuring power interruption in a vital unit like a key industrial plant or a hospital, a diesel electric plant can be used to generate the needed power.\r\n(e) Nursery station:\r\n\r\nIn the absence of main grid, a diesel plant can be installed to supply power in a small town. In course of time, when electricity from the main grid becomes available in the town, the diesel unit can be shifted to some other area which needs power on a small scale. Such a diesel plant is called a \"nursery station\".\r\n(f) Starting stations:\r\n\r\nDiesel units can be used to run the auxiliaries (like FD and ID fans, BFP, etc.) for starting a large steam power plant.\r\n\r\n(g) Central stations :\r\n\r\nDiesel electric plants can be used as central station where the capacity required is small\r\n\r\nAdvantages and disadvantages of diesel power plant\r\n\r\nFollowing are the advantages of diesel power plant\r\n\r\n1. It is easy to design and install these electric stations.\r\n2. They are easily avail able in standard capacities .\r\n3. They can respond to lo ad change s without much difficulty.\r\n4. There are less standby losses.\r\n5. They occupy less space .\r\n6. They can be started and stopped quickly.\r\n7. They require less cooling water .\r\n8. Capital cost is less.\r\n9. Less operating and supervising g staff f required.\r\n10. High efficiency of energy conversion from fuel to electricity.\r\n11. Efficiency at part loads is also higher .\r\n12. Less of civil engineering work is required.\r\n13. They can be located near the load cent re.\r\n14. There i s no a sh handling problem.\r\n15. Easier lubrication system.\r\n\r\n\u00a0Disadvantages in in stalling diesel units for power generation .\r\n1. High operating cost.\r\n2. High maintenance and lubrication cost .\r\n3. Capacity is restricted. Cannot be of very big size.\r\n4. Noise problem.\r\n5. Cannot supply overload .\r\n6. Unhygienic emissions.\r\n7. The life of the diesel power plant is less (7 to 10 years) as compared to that of a steam power plant which has a life span of 25 to 45 years. The efficiency of the diesel plant decreases to less than 10% after its life period.","headline":"Diesel power plant &#8211; Diagram , Parts , Working , Advantages and Disadvantages","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/diesel-power-plant-diagram-300x193.jpg","height":193,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <article class="article-card horizontal "> <a href="//www.gunkrazy.com/gas-turbine-power-plant-parts-working-advantages-and-disadvantages/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2019/02/diagram-of-gas-turbine-power-plant-300x169.jpg')"></div><span class="sr-only">link to Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/gas-turbine-power-plant-parts-working-advantages-and-disadvantages/">Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages</a></p></header><div class="excerpt"><p>Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages
Gas Turbine Power plant
A gas turbine power plant may be defined as one “in which the principal prime mover is of the...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/gas-turbine-power-plant-parts-working-advantages-and-disadvantages/" aria-label="View Post: Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages","url":"\/\/www.gunkrazy.com\/gas-turbine-power-plant-parts-working-advantages-and-disadvantages\/","articleBody":"Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages\r\nGas Turbine Power plant\r\nA gas turbine power plant may be defined as one \u201cin which the principal prime mover is of the turbine type and the working medium is a permanent gas\u201d.\r\n\r\nA simple gas turbine plant consists of the following:\r\n1. compressor\r\n2. Intercooler\r\n3. Regenerator\r\n4. Combustion chamber\r\n5. Gas turbine\r\n6. Reheating unit\r\n\r\nRead More :\u00a0Open Cycle Gas Turbine -working , Diagram ,Advantages\r\n\r\n1. Compressor:\r\nIn gas turbine plant, the axial and centrifugal flow compressors are used. In most of the gas turbine power plant, two compressors are used. One is low pressure compressor and the other is high pressure compressor. In low pressure compressor, the atmospheric air is drawn into the compressor through the filter. The major part of the power developed by the turbine\r\n(about 66%) is used to run the compressor. This low pressure air goes to the high pressure compressor through the intercooler. Then the high pressure air goes into the regenerator.\r\n\r\n2. Intercooler:\r\n\r\nThe intercooler is used to reduce the work of the compressor and it is placed in between the high pressure and low pressure compressor. Intercoolers are\r\ngenerally used when the pressure ratio is very high. The energy required to compress the air is proportional to the air temperature at inlet. The cooling\r\nof compressed air in intercooler is generally done by water.\r\n\r\n3. Regenerator:\r\nRegenerators are used to preheat the air which is entering into the combustion chamber to reduce the fuel consumption and to increase the efficiency. His is done by the heat of the hot exhaust gases coming out of the turbine.\r\n\r\n4. Combustion chambers\r\nHot air from regenerator flows to the combustion chambers and the fuel like coal, natural gas or kerosene are injected into the combustion chamber.\r\nAfter the fuel injection, the combustion takes place. This high pressure, high temperature products of combustion are passed through the turbine.\r\n\r\n diagram of gas turbine power plant\r\n\r\n5. Gas turbine\r\nTwo types of gas turbines are used in gas turbine plant.\r\n1. High pressure turbine\r\n2. Low pressure turbine \r\n\r\n1. High Pressure turbine\r\nIn the beginning, the starting motor runs the compressor shaft. The burnt gases (product of combustion) expand through the high pressure turbine. It is important to note that when the turbine shaft rotates it infact drives the compressor shaft which is couples to it. Now, the high pressure turbine runs the compressor and the starting motor is stopped. About 66% of the power developed by the turbine is used to run the compressor and only\r\n34% of the power developed is used to generate electric power.\r\n\r\n2. Low pressure turbine\r\nThe purpose of the low pressure turbine is to produce electric power. The shaft of the LPT is coupled with the generator. The burnt fuel (gases) after leaving the HPT is again sent to a combustion chamber where it further undergoes combustion. Even if there is any left out unburnt fuel from the previous turbine it gets fully burnt in the combustion chamber. The burnt gases run the low pressure turbine (LPT). The shaft of the turbine is directly coupled with the generator for producing electricity.\r\nThe exhaust hot gases after leaving the LPT passes through the regenerator before exhausted through the chimney into the atmosphere. The heat from the hot gases is used to preheat the air leaving the HPC before it enters the combustion chamber. This preheating of the air improves the efficiency of the combustion chamber.\r\n\r\n Working of Gas Turbine Power plant\r\nThe working of gas turbine plant is shown in fig. The atmosphere air is drawn into the low pressure compressor through the air filter and it is compressed.\r\nThe compressed low pressure air goes into the high pressure compressor through the intercooler. Here, the heat of the compressed air is\r\nremoved. Then the high pressure compressed air goes into the combustion chamber through the regenerator. In the combustion chamber, the fuel is added to the compressed air and the combustion of the fuel takes place.\r\n\r\nThe product of the combustion goes into the high pressure turbine. The exhaust of the high pressure turbine goes to another combustion chamber and the additional fuel is added and it goes to the low pressure turbine.\r\nAfter the expansion in the low pressure turbine, the exhaust is used to heat the high pressure air coming to the combustion chamber through the regenerator. After that, the exhaust goes to the atmosphere.\r\n\r\nAdvantages of Gas turbine power plant\r\n1. For a gas turbine plant, Natural gas is a very suitable fuel. It would be ideal to install gas turbine plants near the site where natural gas is readily available.\r\n2. Gas turbine plants can work economically for short running hours.\r\n3. Storage of fuel requires less area and handling is easy.\r\n4. Gas turbine plant is small and compact in size as compared to steam power plants.\r\n5. It can be started quickly and can be put on load in a very short time.\r\n6. The cost of maintenance is less.\r\n7. It is simple in construction. There is no need for boiler, condenser and other accessories as in the case of steam power plants.\r\n8. The gas turbine can operate at high speed since there are no reciprocating parts\r\n9. Cheaper fuel such as kerosene, paraffin, benzene and powdered coal (cheaper than petrol and diesel) can be used.\r\n10. Gas turbine plants can be used in water scarcity areas\r\n11. Less pollution and less water is required.\r\n\r\n\u00a0Disadvantages of gas turbine power plant\r\n1. 66% of the power developed is used to drive the compressor; the gas turbine unit has a low thermal efficiency\r\n2. The running speed of the gas turbine is in the range of (40, 000 to 1, 00,000 rpm) and the operating temperature is as high as 2000 0C, for\r\nthis reason special metals and alloys have to be used for the various parts of the turbine.\r\n3. Special cooling methods are required for cooling the turbine blades.\r\n4. It is difficult to start a gas turbine as compared to a diesel engine in a diesel power plant\r\n5. The life of a gas turbine plant is upto 10 years, after which its efficiency decreases to less than 10 percent.\r\n\r\nApplications of gas turbine power plant\r\n\r\n \tTo drive generators and supply loads in steam, diesel or hydro plants\r\n \tTo work as combination plants with conventional steam boilers\r\n \tThermal process industries\r\n \tPetro chemical industries\r\n \tPower generation (used for peak load and as stand by unit)\r\n \tAircraft and ships for their propulsion. They are not suitable for automobiles because of their very high speeds.","headline":"Gas Turbine Power plant | Parts , Working , Advantages and Disadvantages","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2019-02-24","mainEntityOfPage":"False","dateModified":"February 22, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2019\/02\/diagram-of-gas-turbine-power-plant-300x169.jpg","height":169,"width":300},"publisher":{"@context":"http:\/\/schema.org\/","@type":"Organization","name":"Learn Mechanical Engineering","logo":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2020\/01\/learn-mech-logo-1-300x300.png","height":600,"width":60}}}</script> <nav class="pagination-wrapper" aria-label="article pagination"> <a class="prev page-numbers" href="?page_num=126">&laquo; PREV</a> <a class="page-numbers" href="?page_num=1"><span class="screen-reader-text">Page </span>1</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=125"><span class="screen-reader-text">Page </span>125</a> <a class="page-numbers" href="?page_num=126"><span class="screen-reader-text">Page </span>126</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>127</span> <a class="page-numbers" href="?page_num=128"><span class="screen-reader-text">Page </span>128</a> <a class="page-numbers" href="?page_num=129"><span class="screen-reader-text">Page </span>129</a> <span class="page-numbers dots">&hellip;</span> <a class="page-numbers" href="?page_num=338"><span class="screen-reader-text">Page </span>338</a> <a class="next page-numbers" href="?page_num=128">NEXT &raquo;</a></nav></section></main><aside id="secondary" class="widget-area"><div class="about-wrapper"><h2 class="widget-title" style="background: #d693c6; color: #ff392e">About Us</h2><div class="about-image" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2020/03/Sachin-Thorat-300x300-min.png')"></div><p class="about-copy">LearnMech.Com is a Mechanical Project-oriented platform run by Sachin Thorat who is a B-Tech Graduate in Mechanical Engineering. 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