Tuesday, 24 April 2018

GAS TURBINE



                       Gas Turbine

A gas turbine, also called a combustion turbine , is types of internal combustion engine.
》fresh atmosphere air flow through a compressor that brings in to higher pressure.
》Energy is then added by spraying fuel into the air and igniting it so the combustion generates a high pressure flow .
》Gas turbine are used to power aircraft, train, ships , electrical generator or even tanks.

Kinetic Turbine




Kinetic Turbine

》Kinetic energy turbines, also called free-flow turbines, generator electricity from kinetic energy present in flowing water.
》The systems may operate in river, man-made channels, tidal water, or ocean current.
》 Kinetic systems utilize the water stream's natural path way.
》They do not require the diversion of water through man made channels riverbeds, or pipes.
》They might have applications in such conduits.

》Kinetic systems do not require large civil work; however , they can use existing structure such as bridges , tailraces and channel and do not require any dam or reservoir.

Steam Turbine




                               Steam Turbine
》 A steam turbine is a device that exracts thermal energy frompressurized steam and use it to do mechanical work on rotating output shaft.
》This turbine was invented by Sir Charles Parsons in 1884
》Steam turbines are used for the generation of electricity in thermal power plants, such as plants using coal fuel oil or nuclear fuel.
》Steam turbines are made in a variety of size ranging from small to large . used as mechanical drives for pump , compressor and other shaft driven equipment, used to generate electricity up to 1.5GW.
Applications
》Fuel used are biomass ,coal etc.
》Modern  steam turbine has automatic control system.
》Steam heated process in plant and factories.
》Steam driven turbines in electric power plant.
》Because the turbine generates rotary motion, it is particularly suited to be used to drive an electrical generator bout 90% of all electricity generation in the United State  (1996) 

Kinetic Turbine


                       Kinetic Turbine
》Kinetic energy turbines, also called free-flow turbines, generator electricity from kinetic energy present in flowing water.
》The systems may operate in river, man-made channels, tidal water, or ocean current.
》 Kinetic systems utilize the water stream's natural path way.
》They do not require the diversion of water through man made channels riverbeds, or pipes.
》They might have applications in such conduits.

》Kinetic systems do not require large civil work; however , they can use existing structure such as bridges , tailraces and channel and do not require any dam or reservoir.

Power system MCQ

Q 1 . In Power station practice "spinning reverse" is  (a) Reverse generating capacity that is in operation but not in...