A fairly efficient steam turbine engine fired by coal is used to drive an electr

Question

A fairly efficient steam turbine engine fired by coal is used to drive an electric generator. The generator operates between 2100C and 385C.

A fairly efficient steam turbine engine fired by coal is used to drive an electric generator. The generator operates between 2100 C and 385 C (a) Determine the maximum possible efficiency of the engine. % (b) The engine absorbs 1.15 x 10^5 from the hot reservoir every second. If the actual efficiency of the engine is 37.3%, determine the mechanical power the engine delivers. kW

Explanation / Answer

Actually it is Qdeliverd = Qinput x efficiency

efficiency = 37.3 percent i.e. 0.373

Qdeliverd per second = Qinput per second x efficiency

that becomes Pdeliverd = Pinput x efficiency because

Q per unit time = Power

Accurate anser was 42895 W

Hope dis time its clear..if still problem sustains plzz do let me know will sort out definately

thanks

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