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GATE Answer Key 2018 – The answer key of GATE 2018 for both forenoon and afternoon session is available now for ME, CS and IN paper. Various coaching...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/gate-2018-answer-keys-mechanical-students/" aria-label="View Post: GATE 2018 Answer Keys For Mechanical Students">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"GATE 2018 Answer Keys For Mechanical Students","url":"\/\/www.gunkrazy.com\/gate-2018-answer-keys-mechanical-students\/","articleBody":"GATE 2018 Answer Keys For Mechanical Students\r\nGATE Answer Key 2018 \u2013 The answer key of GATE 2018 for both forenoon and afternoon session is available now for ME, CS and IN paper. Various coaching centres like Made Easy, The GATE Academy, GATEForum etc. release the GATE answer key 2018 for various sessions. The GATE 2018 answer key contains the correct answers to the questions asked in the entrance test. Publication of the GATE answer key 2018 will help the candidates verify their answers with the ones provided by the experts and calculate their scores in the exam to estimate their probable ranks.\r\n\r\ngate answer keys for mechanical engineering\r\n\r\nIIT Guwahati will also publish the official answer key of GATE 2018 for all sessions and papers along with notification of a time frame to raise any objections with proof. The final GATE answer key 2018 will be published after considering all the objections raised by any candidates. Candidates can check and download the answer key of GATE 2018 as well as their response sheets by logging in through GOAPS. GATE aspirants can download the GATE 2018 answer key for each paper session wise and check the procedure to file objections, know how to calculate their GATE scores and more on this page.\r\nGATE 2018 Question Paper with answer keys pdf Download :\u00a0\r\nME (Forenoon Session)\r\n\r\n \tGATE 2018 Answer Keys 3 Feb Morning by\u00a0The GATE Academy -Click here to Download\r\n \tGATE 2018 Answer Keys\u00a0 by GATE Forum\u00a0-Click here to Download\r\n \tGATE 2018 Answer Keys\u00a0 by Engineers Academy\u00a0-Click here to Download\r\n\r\nME (Afternoon Session)\r\n\r\n \tGATE 2018 Answer Keys 3 Feb AfterEngineers\u00a0noon\u00a0 by\u00a0The GATE Academy -Click here to Download\r\n \tGATE 2018 Answer Keys\u00a0 by Engineering Academy\u00a0-Click here to Download","headline":"GATE 2018 Answer Keys For Mechanical Students","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-06","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/gate-answer-keys-for-mechanical-engineering-300x214.jpg","height":214,"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/plunger-pump-vs-piston-pump-difference-plunger-piston/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2018/02/200px-Piston_VS_Plunger_Pump.png')"></div><span class="sr-only">link to Plunger pump vs Piston pump &#8211; Difference between Plunger and Piston</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/plunger-pump-vs-piston-pump-difference-plunger-piston/">Plunger pump vs Piston pump &#8211; Difference between Plunger and Piston</a></p></header><div class="excerpt"><p>Plunger pump vs Piston pump - Difference between Plunger and Piston
In this articles we will see difference between plunger and piston pump ,working of both types of pumps.  Pumps are used to...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/plunger-pump-vs-piston-pump-difference-plunger-piston/" aria-label="View Post: Plunger pump vs Piston pump &#8211; Difference between Plunger and Piston">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Plunger pump vs Piston pump &#8211; Difference between Plunger and Piston","url":"\/\/www.gunkrazy.com\/plunger-pump-vs-piston-pump-difference-plunger-piston\/","articleBody":"Plunger pump vs Piston pump - Difference between Plunger and Piston\r\nIn this articles we will see difference between plunger and piston pump ,working of both types of pumps.\r\n\r\nPumps are used to transfer fluids from one location to another by increasing the pressure of the fluid and supplying the driving force necessary for flow.\r\nPower in form of electrical or steam energy may be transformed into mechanical energy which is used to drive the pump. Part of this mechanical energy is added to the fluid the as work energy and the rest is lost as friction due to inefficiency of the pump and the drive.\r\n\r\nThe different types of pumps can be classified as\r\n\r\n \tReciprocating or positive displacement pumps\r\n \tRotary positive displacement pumps\r\n \tRotary centrifugal pumps\r\n\r\nPiston Vs Plunger\r\nA piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gas-tight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and\/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In some engines, the piston also acts as a valve by covering and uncovering ports in the cylinder wall.\r\n\r\nSee Also:\u00a0IC engine Major Parts and Its Function, Materials,Images,Manufacturing Method.\r\n\r\nA plunger is a device that is used to release stoppages in plumbing. The tool consists of a rubber cup with an attached stick \"shaft\", usually made of wood or plastic. A different bellows-like design also exists, usually constructed of plastic. For the common plunger, the cup is pushed down against the drain opening, and either pressed hard into the drain to force air in, or is pushed down until the rubber cup is flattened, then pulled out, causing a vacuum that attracts material. The intent is to loosen or break up a blockage caused by excessive material in the drain.\r\n\r\nPiston_VS_Plunger_Pump\r\n\r\nDifference Between Plunger pump and Piston Pump:\r\n\r\nPiston Pump:\u00a0\r\n\r\n \tA piston pump is a type of positive displacement pump where the high-pressure seal reciprocates with the piston.\r\n \tThe piston pump consists of a cylinder with a reciprocating piston connected to a rod which passes through a gland at the end of the cylinder. The liquid enters from the suction line through a suction valve and is discharged through a delivery valve. These pumps may be single acting or double acting.\r\n \tThe theoretical delivery of a piston pump is equal to the total swept volume of the cylinders. The actual delivery may be less than the theoretical value with volumetric efficiency greater than 90%.\r\n \tThe piston pump can be directly driven by steam or electric motor.\r\n \tThe piston type pump is comparatively simple in construction and operates with a high efficiency over a wide range of operating conditions. They can handle viscous liquids and develop high pressures.\r\n \tIt can operate against a high head and does not require priming. However, delivery is uneven and presents an uneven load on the driving mechanism.\r\n \tSince with a well maintained piston pump the volume delivered is accurately known these pumps find use as metering pumps.\r\n\r\nPlunger Pump:\u00a0\r\n\r\n \tA plunger pump is a type of positive displacement pump where the high-pressure seal is stationary and a smooth cylindrical plunger slides through the seal. This makes them different from piston pumps and allows them to be used at higher pressures.\r\n \tPlunger pumps differ form piston pumps in that they have one or constant diameter plungers reciprocating through packing glands and displacing liquid from cylinders in which there is considerable radial clearance. They are always single acting in the sense that only one end of the plunger is used in pumping the liquid.\r\n \tPlunger pumps are available with one, two, three, four, five or even more cylinders. Simplex and duplex units are often built in a horizontal design. Those with three or more cylinders are usually of vertical design. The driver may be an electric motor, a steam or gas engine or a steam turbine.","headline":"Plunger pump vs Piston pump &#8211; Difference between Plunger and Piston","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-05","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/200px-Piston_VS_Plunger_Pump.png","height":215,"width":200},"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/classification-numerical-control-cnc-machines/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2018/02/open-loop-and-closed-loop-system-300x180.jpg')"></div><span class="sr-only">link to Classification of Numerical Control CNC Machines</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/classification-numerical-control-cnc-machines/">Classification of Numerical Control CNC Machines</a></p></header><div class="excerpt"><p>Classification of Numerical Control CNC Machines
In this post we will see about Classification of numerical control i.e. NC ,CNC  machines . Major types of NC machines are covered.
CLASSIFICATION...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/classification-numerical-control-cnc-machines/" aria-label="View Post: Classification of Numerical Control CNC Machines">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Classification of Numerical Control CNC Machines","url":"\/\/www.gunkrazy.com\/classification-numerical-control-cnc-machines\/","articleBody":"Classification of Numerical Control CNC Machines\r\nIn this post we will see about Classification of numerical control i.e. NC ,CNC\u00a0 machines . Major types of NC machines are covered.\r\nCLASSIFICATION OF NC MACHINES\r\nIn present era, variety, complexity of geometry, tolerances, skill of personnel and availability of funds by considering all factors, the NC machines are designed according to meet different requirements within the cost constraints. These machines are broadly classified as the following :\r\n(a) Based on feedback control, and\r\n (b) Based on control system features.\r\n\r\nBASED ON FEEDBACK CONTROL\r\nIn the NC machines, to control the position of a machine slide, a group of electro-mechanical, pneumatic or hydraulic components are used which are collectively known as Servo Mechanism. The output from the data handling equipment is passed through separate channels to servo system, which in turn drives the machine slides. This servo system, based on feedback control, can be approached in three ways :\r\nOpen Loop System\r\nIn an open loop system the machine slides are displaced according to the information loaded from the part program into the control system. Hence there is\u00a0no measurement of slide position and no feedback signals for comparison with the input signal. The correct movement of slide entirely depends upon the ability of the drive systems to move the slide through the required exact distance. The most common method of driving the lead screw is by a stepper motor. The stepper motors are the simplest way for converting detail electrical signals into proportional movement. As there is no check on the slide position, the system accuracy depends upon the motors ability to step through the exact number of steps provided at the input as shown in fig.\r\n\r\nClosed Loop System\r\n\r\nA closed loop system is sends back a signal to the control unit from a measuring device called as transducer. The transducer is attached to the slide ways. The signal indicates the actual movement and position of the slides. The control unit continues to adjust the position of the slide until it arrives it\u2019s destination, this system has feedback. Although more costly and complex than open loop system, these system gives more accurate positioning. For this type of system, servomotors are used.\r\n\r\nopen loop and closed loop system\r\n\r\n&nbsp;\r\n\r\nCLASSIFICATION BASED ON CONTROL SYSTEM\r\n\r\nSome machine tools require that the cutting tool and work piece shall be placed at certain positions and also be moved relative to each other. Based on the relative motion, the NC machines can be classified as :\r\n\r\nPoint to Point Motion Control System\r\nSome machine tools for example drilling, boring and tapping machines etc, require the cutter and the work piece to be placed at a certain fixed relative positions at which they must remain while the cutter does its work. These machines are known as point-to-point machines. The control equipment for use with them is known as point-to-point control equipment. Feed rates need not to be programmed. In theses machine tools, each axis is driven separately. In a point-to-point control system, the dimensional information that must be given to the machine tool will be a series of required position of the two slides. Servo systems can be used to move the slides and no attempt is made to move the slide until the cutter has been retracted back.\r\n\r\nStraight Line Motion Control System\r\nThe NC systems, in which the tool works along a straight line in the direction of a major coordinate axis, such as along the direction of feed during turning, boring or milling operation at a controlled rate, are known as Straight line control system.\r\n\r\nContouring or Continuous Path Motion Control System\r\nOther type of machine tools involves motion of work piece with respect to the cutter while cutting operation is taking place. These machine tools include milling, routing machines etc. and are known as contouring machines and the controls required for their control are known as contouring control. Contouring machines can also be used as point-to-point machines, but it will be uneconomical to use them unless the work piece also requires having a contouring operation to be performed on it. These machines require simultaneous control of axes. In contouring machines, relative positions of the work piece and the tool should be continuously controlled. The control system must be able to accept information regarding velocities and positions of the machines slides. Feed rates should be programmed.\r\n\r\ncontouring or continuous path motion control system\r\n\r\nCombined Motion Control System\r\nThe above all the control systems are combined as groups. Most of the Jig boring, horizontal boring and drilling machines employ this type of control system. This motions controls systems are having 3 or 4 linear axes to be controlled continuously and 2 or 3 rotary movements controlled along with the positioning facility. This combination is used for complex contouring operations, to be carried out on machining centers.","headline":"Classification of Numerical Control CNC Machines","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-04","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/open-loop-and-closed-loop-system-300x180.jpg","height":180,"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/machining-process-purpose-principle-definition/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2018/02/CNC-Turning-300x200-300x200.jpg')"></div><span class="sr-only">link to Machining Process &#8211; Purpose, Principle and Definition</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/machining-process-purpose-principle-definition/">Machining Process &#8211; Purpose, Principle and Definition</a></p></header><div class="excerpt"><p>Machining Manufacturing Process - Purpose, Principle and Definition
Production or manufacturing can be simply defined as value addition processes by which raw materials of low utility and value due...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/machining-process-purpose-principle-definition/" aria-label="View Post: Machining Process &#8211; Purpose, Principle and Definition">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Machining Process &#8211; Purpose, Principle and Definition","url":"\/\/www.gunkrazy.com\/machining-process-purpose-principle-definition\/","articleBody":"Machining Manufacturing Process - Purpose, Principle and Definition\r\nProduction or manufacturing can be simply defined as value addition processes by which raw materials of low utility and value due to its inadequate material properties and poor or irregular size, shape and finish are converted into high utility and valued products with definite dimensions, forms and finish imparting some functional ability. In this article we will see \" What is Machining \" , Introduction to machining ,Definition Of Machining , Purpose of Machining , Principle of Machining .\r\n\r\nPurpose of Machining:\u00a0\r\nMost of the engineering components such as gears, bearings, clutches, tools, screws and nuts etc. need dimensional and form accuracy and good surface finish for serving their purposes. Preforming like casting, forging etc. generally cannot provide the desired accuracy and finish. For that such preformed parts, called blanks, need semi-finishing and finishing and it is done by machining and grinding. Grinding is also basically a machining process.\r\nMachining to high accuracy and finish essentially enables a product\r\n\u2022 fulfill its functional requirements\r\n\u2022 improve its performance\r\n\u2022 prolong its service\r\nDefinition of Machining: \r\nMachining is an essential process of finishing by which jobs are produced to the desired dimensions and surface finish by gradually removing the excess material from the preformed blank in the form of chips with the help of cutting tool(s) moved past the work surface(s).\r\nPrinciple of Machining\r\nThe basic principle of machining is typically illustrated\r\n\r\nprinciple of machining turning\r\n\r\nA metal rod of irregular shape, size and surface is converted into a finished rod of desired dimension and surface by machining by proper relative motions of the tool-work pair.\r\n\r\nMachining requirements;\u00a0\r\nThe essential basic requirements for machining work are schematically illustrated in Fig.\r\n\r\nMachining requirements\r\n\r\nThe blank and the cutting tool are properly mounted (in fixtures) and moved in a powerful device called machine tool enabling gradual removal of layer of material from the work surface resulting in its desired dimensions and surface finish. Additionally some environment called cutting fluid is generally used to ease machining by cooling and lubrication.\r\n\r\nBasic functions of Machine Tools\r\nMachine Tools basically produce geometrical surfaces like flat, cylindrical or any contour on the preformed blanks by machining work with the help of cutting tools.\r\n The physical functions of a Machine Tool in machining are:\r\n \u2022 firmly holding the blank and the tool\r\n \u2022 transmit motions to the tool and the blank\r\n\r\n\u2022 provide power to the tool-work pair for the machining action.\r\n \u2022 control of the machining parameters, i.e., speed, feed and depth of cut.\r\n\r\n\u00a0Machine Tool - definition\r\nA machine tool is a non-portable power operated and reasonably valued device or system of devices in which energy is expended to produce jobs of desired size, shape and surface finish by removing excess material from the preformed blanks in the form of chips with the help of cutting tools moved past the work surface(s).\r\n\r\nMachining operations\r\nThere are many kinds of machining operations, each of which is capable of generating a certain part geometry and surface texture.\r\n\r\n machining Operations\r\n\r\nIn turning, a cutting tool with a single cutting edge is used to remove material from a rotating workpiece to generate a cylindrical shape. The primary motion is provided by rotating the workpiece, and the feed motion is achieved by moving the cutting tool slowly in a direction parallel to the axis of rotation of the workpiece.\r\n\r\nDrilling is used to create a round hole. It is accomplished by a rotating tool that typically has two or four helical cutting edges. The tool is fed in a direction parallel to its axis of rotation into the workpiece to form the round hole.\r\n\r\nIn boring, a tool with a single bent pointed tip is advanced into a roughly made hole in a spinning workpiece to slightly enlarge the hole and improve its accuracy. It is a fine finishing operation used in the final stages of product manufacture.\r\n\r\nReaming is one of the sizing operations that removes a small amount of metal from a hole already drilled.\r\n\r\nIn milling, a rotating tool with multiple cutting edges is moved slowly relative to the material to generate a plane or straight surface. The direction of the feed motion is perpendicular to the tool's axis of rotation. The speed motion is provided by the rotating milling cutter. The two basic forms of milling are:\r\n\r\nPeripheral milling\r\n Face milling.\r\n Other conventional machining operations include shaping, planing, broaching and sawing. Also, grinding and similar abrasive operations are often included within the category of machining.","headline":"Machining Process &#8211; Purpose, Principle and Definition","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-02","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/CNC-Turning-300x200-300x200.jpg","height":200,"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/electricity-water-pumping-system-using-wind-mill/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2018/02/ELECTRICITY-AND-WATER-PUMPING-SYSTEM-300x206.jpg')"></div><span class="sr-only">link to ELECTRICITY AND WATER PUMPING SYSTEM  USING WIND MILL</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/electricity-water-pumping-system-using-wind-mill/">ELECTRICITY AND WATER PUMPING SYSTEM  USING WIND MILL</a></p></header><div class="excerpt"><p>ELECTRICITY AND WATER PUMPING SYSTEM USING WIND MILL- Mechanical Project
In this article we will see Brief information about Electricity and Water pumping System Using Wind Mill Mechanical Project...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/electricity-water-pumping-system-using-wind-mill/" aria-label="View Post: ELECTRICITY AND WATER PUMPING SYSTEM  USING WIND MILL">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"ELECTRICITY AND WATER PUMPING SYSTEM  USING WIND MILL","url":"\/\/www.gunkrazy.com\/electricity-water-pumping-system-using-wind-mill\/","articleBody":"ELECTRICITY AND WATER PUMPING SYSTEM USING WIND MILL- Mechanical Project\r\nIn this article we will see Brief information about Electricity and Water pumping System Using Wind Mill Mechanical Project ,synopsis and advantages and Disadvantages.\r\nSYNOPSIS\r\nAero turbines convert wind energy into rotary mechanical energy. A mechanical interface, consisting of a step-up gear and a suitable coupling transmits the energy to an electrical generator. The output of this generator is connected to the Battery or system grid. The battery is connected to the inverter. The inverter is used to convert DC voltages to AC voltages. The load is drawn current from the inverter.\r\n\r\nGear box is the main components of the wind mill. In our project main shaft is also connected to the pump which is drawn water from the ground level. Gear box consist of\r\n\r\n \tGenerator\r\n \tMains haft with Leafs\r\n \tGear Wheel Arrangement\r\n\r\nWind power ratings can be divided into three convenient grouping, small to 1kW, medium to 50 kW and large 200 kW to megawatt frame size.\r\n\r\nINTRODUCTION\r\n\r\nWind energy offers another source for pumping as well as electric power generation. India has potential of over 20,000 MW for power generation and ranks as one of the promising countries for tapping this source. The cost of power generation from wind farms has now become lower than diesel power and comparable to thermal power in several areas of our country especially near the coasts.\r\nWind power projects of aggregate capacity of 8 MW including 7 wind farms projects of capacity 6.85 MW have been established in different parts of the country of which 3 MW capacities has been completed in 1989 by DNES. Wind farms are operating successfully and have already fed over 150 lakes units of electricity to the respective state grids. Over 25 MW of additional power capacity from wind is under implementation. Under demonstration programmer 271 wind pumps have been installed up to February 1989. Sixty small wind battery charges of capacities 300 watts to 4 kW are under installation. Likewise to stand-alone wind electric generators of 10 to 25 kW are under installation.\r\n\r\nBLOCK DIAGRAM\r\n\r\nELECTRICITY AND WATER PUMPING SYSTEM\r\n\r\nADVANTAGES OF WIND ENERGY CONVERSION SYSTEM\r\n\r\n \tThe major advantage of this design is that the rotor blades can accept the wind from any compass.\r\n \tAnother added advantage is that the machine can be mounted on the ground eliminating tower structures and lifting of huge weight of machine assembly, i.e. it can be operated close to the ground level.\r\n \tSince this machine has vertical axis symmetry, it eliminates yaw control requirement for its rotor to capture wind energy. A dual purpose and relatively simple shaft axis support is anticipated as well as ground level power output delivery due to presence of vertical shaft. This may in turn, allow easier access and serviceability.\r\n \tAirfoil rotor fabrication costs are expected to be reduced over conventional rotor blade costs.\r\n \tThe absence of pitch control requirements for synchronous operation may yield additional cost savings.\r\n \tThe tip speed ratio and power coefficient are considerably better than those of the S-rotor but are still below the values for a modern horizontal-axis, two-bladed propeller rotor.\r\n\r\nDISADVANTAGES OF WIND ENERGY CONVERSION SYSTEM\r\n\r\n \tRotor power output efficiency of a Darrieus wind energy conversion system is also somewhat lower than that of a conventional horizontal rotor.\r\n \tBecause a Darrieus rotor is generally situated near ground proximity, it may also experience lower velocity wind compared to a tower mounted conventional wind energy conversion system of comparable projected rotor disc area. This may yield less energy output.\r\n\r\nAPPLICATIONS\r\n\r\nDirect heat applications\r\n\r\nMechanical motion derived from wind power can be used to drive heat pumps or to produce heat from the friction of solid materials, or by the churning of water or other fluids, or in other cases, by the use of centrifugal or other types of pumps in combination with restrictive orifices that produces heat from friction and turbulence when the working fluid flows through them. This heat may then be stored in materials having a high heat capacity, such as water, stones, eutectic salts, etc.,\r\n\r\nA home heating system that uses a wind powered pump and a restrictive orifice to derive direct heat for a building, without first generating electricity also has been developed.\r\n\r\nElectric Generation Applications:\r\n\r\nWind power can be used in centralized utility applications to drive synchronous A.C. electrical generators. In such applications the energy is fed directly into power networks through voltage step-up transformers.\r\n\r\nWECS units can be integrated with existing hydro electrical networks and used in a \u201cwater-saver\u201d mode of operation. When the wind is blowing, electrical an amount equal to the being can reduce generation at the hydroelectric plants in the network produced by the WECS units. Thus, the wind turbines supply part of the network load that is ordinarily produced by the hydroelectric generators. Under these conditions some of the water that would have been used by the hydroelectric plant to supply the load is saved in the reservoir and made available for later use when the wind is not blowing.","headline":"ELECTRICITY AND WATER PUMPING SYSTEM  USING WIND MILL","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-02","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/ELECTRICITY-AND-WATER-PUMPING-SYSTEM-300x206.jpg","height":206,"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/design-fabrication-concave-attachment-shaper-machine/" rel="nofollow"><div class="image-container" style="background-image: url('//www.gunkrazy.com/wp-content/uploads/2018/02/cocave-attachement-for-shaper-mechanical-project-300x173.png')"></div><span class="sr-only">link to Design and Fabrication Of Concave Attachment For Shaper Machine</span></a><div class="copy-container"><header><p><a style="color: #ff392e!important" href="//www.gunkrazy.com/design-fabrication-concave-attachment-shaper-machine/">Design and Fabrication Of Concave Attachment For Shaper Machine</a></p></header><div class="excerpt"><p>Design and Fabrication Of Concave Attachment For Shaper Machine
In this article we will see brief information about " Design and Fabrication Of Concave Attachment For Shaper Machine ".
SYNOPSIS
A...</p><div class="button-container"><a rel="nofollow" class="button reverse" href="//www.gunkrazy.com/design-fabrication-concave-attachment-shaper-machine/" aria-label="View Post: Design and Fabrication Of Concave Attachment For Shaper Machine">View Post</a></div></div></div></article> <script type="application/ld+json">{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","name":"Design and Fabrication Of Concave Attachment For Shaper Machine","url":"\/\/www.gunkrazy.com\/design-fabrication-concave-attachment-shaper-machine\/","articleBody":"Design and Fabrication Of Concave Attachment For Shaper Machine\r\nIn this article we will see brief information about \" Design and Fabrication Of Concave Attachment For Shaper Machine \".\r\nSYNOPSIS\r\nA concave attachment is a versatile one to cut concave-convex profiles. A set of rotating plates have T-slots for the T-bolts that hold the boring bar. These plates are rotated by a train of gears. The bar is held roughly yet free enough to rotate. When the tool is built, the boring bar is first clamped with both pivots at lead centre. So, the tool describes a zero radius when the crank is turned.\r\n\r\nAt this time, one set up pin hole is drilled in each of the rotating plates, as indicated so that the pin touches the boring bar. Then to set the tool, for a desired radius, it is merely necessary to place a piece of flat stock the same thickness as the desired radius between the bar and the set up pins while securing the bar in position. At this point, data the flat stock and set up pin can be removed.\r\nINTRODUCTION\r\nThe concave attachment is fixed to the carriage of the Shaper. The compound rest that is locked solid with its base is removed and the attachment is fixed on the cross lied of the carriage with its axis parallel to the Shaper bed.\r\n\r\nThe work is secured rigidly in a chuck. By the concave-convex movement of the boring bar, the material is being removed. This attachment is used to produce contour profiles and round balls.\r\n\r\ncocave attachement for shaper mechanical project\r\n\r\nNEED FOR ATTACHMENT\r\n\r\nIn recent years, new fabrication techniques have been developed to satisfy the technological demands. Moreover, emphasis is stressed on attachments.\r\n\r\nAttachments are used in various fields and machines depending upon the needs to be fulfilled and mode of operation. An attachment eliminates the purchasing of a new unit which serves the same purpose. For example, a Shaper occupies a place opposite to that of a milling machine, the ten machines mainly used to produce cylindrical and plain surfaces respectively. By implementing an attachment to a unit, the capacity of the unit can be increased which is very economical.\r\n\r\nWORKING PRINCIPLE\r\n\r\nThe worm wheel is rotated with the help of a worm shaft. Rotating plates with T-slots that hold the boring are screwed to the worm wheel. The worm wheel in turn is screwed to its base with a simple gear train. The rotary motion is imported to the blank through two spur gears and an intermediate gear namely \u201cIdler Gear\u201d.\r\n\r\nThe idler gear serves to keep the rotation of rotating plates in the same direction. The worm shaft is rotated in clockwise direction, the boring bar machines a contour profile in the clockwise direction and vice versa. Thus a concave-convex profile is machined by boring bar by simultaneous engagement of the two plates.\r\nWORKING OF THE\u00a0 UNIT\r\nWhen the worm shaft is rotated in a clockwise direction, the worm wheel rotates in the clockwise direction and vice versa.\r\nIdler gears are used to rotate the rotating plates in the same direction. When the boring bar is bolted to only one of the \u2018I\u2019 slots in the rotating plate and when the crank is turned, the material is removed at a certain radius depending on the extension of the boring bar. When the boring bar is bolted to the T-slots provided in the rotating plates and when the worm is rotated, the boring bar described a concave-convex profile. This movement of the bar is used to produce spherical balls also.\r\nADVANTAGES\r\n\r\n \tThe unit is compact in size.\r\n \tLess maintenance is essential\r\n \tThe unit gives long life with proper alignment of gears.\r\n \tJobs can be easily handled in this unit.\r\n\r\nAPPLICATIONS\r\n\r\n \tConcave and convex profiles of desired radius can be easily turned.\r\n \tRound balls can be produced.","headline":"Design and Fabrication Of Concave Attachment For Shaper Machine","author":{"@type":"Person","name":"Sachin Thorat","url":"\/\/www.gunkrazy.com\/"},"datePublished":"2018-02-02","mainEntityOfPage":"False","dateModified":"February 23, 2020","image":{"@type":"ImageObject","url":"\/\/www.gunkrazy.com\/wp-content\/uploads\/2018\/02\/cocave-attachement-for-shaper-mechanical-project-300x173.png","height":173,"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=207">&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=206"><span class="screen-reader-text">Page </span>206</a> <a class="page-numbers" href="?page_num=207"><span class="screen-reader-text">Page </span>207</a> <span aria-current="page" class="page-numbers current"><span class="screen-reader-text">Page </span>208</span> <a class="page-numbers" href="?page_num=209"><span class="screen-reader-text">Page </span>209</a> <a class="page-numbers" href="?page_num=210"><span class="screen-reader-text">Page </span>210</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=209">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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