A gas turbine set delivers mechanical work at a steady rate of and has an efficiency of

PHYSICS · Multi-part · Fermi University Physics · Thermal, Statistical & Complex Systems · The laws of thermodynamics · The laws of thermodynamics

Thermal Physics, Ch Heat engines, refrigerators and the Carnot cycle

Problem

A gas turbine set delivers mechanical work at a steady rate of

4.2\,\mathrm{kW}

and has an efficiency of

e = 0.28

. It runs continuously in a cycle between a hot reservoir (the burning fuel gases) and a cold reservoir (the surrounding air), and its internal energy does not change from cycle to cycle. ((a)) At what rate does it take in heat from the hot reservoir? ((b)) At what rate does it reject heat to the cold reservoir?

Browse the problem library