temperature b) suction presuure > vapor pressure of liquid at that temperature c) suction pressure = vapor pressure d) suction pressure = developed head 3. Centrifugal pumps are normaly used for pumping a) Gas b) Liquids c) Gas & Liquid mixture 4. Check valve is used for a) Very precise control of flow b) Unidirectional flow c) Multidirectional flow d) None of these 5. Purpose of relief valve in a reciprocating pump is to
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The Kaplan turbine is an inward flow reaction turbine, which means that the working fluid changes pressure as it moves through the turbine and gives up its energy. Power is recovered from both the hydrostatic head and from the kinetic energy of the flowing water. The design combines features of radial and axial turbines. The inlet is a scroll-shaped tube that wraps around the turbine's wicket gate. Water is directed tangentially through the wicket gate and spirals on to a propeller shaped runner
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windmills may create some amount of noise when it’s turning. Wildlife can also be threatened due to large scale construction of wind turbines in remote locations, so it could cause a threat to wild life. The main disadvantage of wind energy is that wind can never be predicted. In areas where large amount of wind is needed or winds strength is too low to support wind turbine, there solar or geothermal energy could prove to be great alternatives (Conserve-Energy-Future, 2014). However these issues could
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fraction of that energy can be lost from the system (in the form of heat, sound, vibration, etc.) For example: in a power plant burning coal will produce heat energy, heat energy transfers to the water causing water to turn into steam, steam move the turbine due to pressure, energy is now transfer from heat to mechanical energy, then mechanical energy is converted to electrical by the generators, here we have a good example of energy converted to another form. Another example: leave a stone from a certain
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ways, developing the buses, trains or subways is more critical than ever. Improved roads leave to better fuel efficacy for vehicle, less carbon emissions, and over top performance for newer gas efficient vehicle’s. As mentioned above, with newer gas effective vehicles would provide fewer trips to the gas stations and less carbon emissions leading to a healthier more breathable pollution free atmosphere. Fuel efficient cars are the future of the world and the future of mother Earth in its self
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activities at the Nawapur site of Enercon, Prithwiraj was habituated to getting calls at odd hours. But, this telephone call seemed ominous. The villagers had been agitating for the better part of last week as they were under the impression that the wind turbine generators being constructed by the company near their agricultural land would affect the growth of their crops. While Prithwiraj had used all his reasoning powers to enlighten the villagers, he knew that what was driving the agitation was greed and
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Steam Turbines The invention of the water turbine was so successful that eventually, the idea came about for extracting power from steam. Steam has one great advantage over water-it expands in volume with tremendous velocity. To be the most effective, a steam turbine must run at a very high speed. No wheel made can revolve at any speed approaching the velocity that a steam turbine can. By utilizing the kinetic energy of steam flow, the turbine could achieve a higher efficiency. As
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created when mass in motion. The wind’s kinetic energy can be caught and transformed to other customs of energy such as electricity or mechanical power which are examples of wind power. Some examples that utilize wind power to some extent are: wind turbines which are used to make electricity, wind mills, a form mostly used, are used for mechanical power or wind pumps for pumping water. Wind was one of the earliest forms of energy harnessed to do work, one of which is sails which propel ships. Wind
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The magnet rotors are mounted on bearings, which turn on the shaft. The rear rotor is behind the stator, and enclosed within it. The front one is on the outside, fixed to the rear one by long studs which pass through a hole in the stator. The wind turbine rotor blades will be mounted on the same studs. They will turn the magnet rotors, and move the magnets past the coils. Magnetic flux passes from one rotor to the other through the stator. This moving magnetic flux is what produces the electric power
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STARTING PROCEDURE FOR 45 MW STEAM TURBINE UTRAN CCPP 1. ESTABLISH ACW SYSTEM 2. RUN ONE COOLING WATER PUMP AND ESTABLISH THE SYSTEM 3. RUN THE OIL PUMPS OF STEAM TURBINE 4HRS. BEFORE STARTING THE UNIT AND CHECK FOR ANY OIL LEAKAGES AND ATTEND ACCORDINGLY. 4. RUN ONE OIL VAPOUR EXHAUSTER FAN. STA 5. CHECK THE INTERLOCK AND PROTECTIONS IN OIL SYSTEM IF THE UNIT WAS UNDER LONG S/D. 6. PUT THE MACHINE ON BARRING GEAR AT LEAST 4 HRS. BEFORE STARTING THE UNIT AND OBSERVE FOR
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