Fuel-air cycle efficiency is less than air-standard cycle efficiency by an amount equal to
A)pumping loss
B)friction loss
C)loss due to specific heat variation and chemical equilibrium
D)exhaust blow down loss

Question

Quizplus · Accepted Answer

The efficiency of the fuel-air cycle is less than that of the air-standard cycle primarily due to the loss attributed to specific heat variation and chemical equilibrium. This difference arises because the air-standard cycle assumes constant specific heats, whereas in the fuel-air cycle, the specific heats vary with temperature, and chemical reactions occur, affecting the cycle's efficiency.

Fuel-Air Cycle Efficiency Is Less Than Air-Standard Cycle Efficiency by an Amount