88. In a gas unit, air enters the combustion chamber at 550 kPa, 227°C and 43 m/s. The

products of combustion leave the combustor at 511 kPa, 1004°C and 180 m/s. Liquid fuel enters

with a heating value of 43,000 kJ/kg. For fuel-air ratio of 0.0229, what is the combustor

efficiency in percent?

A. 70.38% B. 79.38% C. 75.38% D. 82.38%