Regeneration, Reheat, and Compression with Intercooling The cycle of Problem 9.60...

Regeneration, Reheat, and Compression with Intercooling

The cycle of Problem 9.60 is modified to include a regenerator with an effectiveness of 70%. Determine

(a) the specific enthalpy, in kJ/kg, and the temperature, in K, for each stream exiting the regenerator and sketch the T–s diagram.

(b) the mass flow rate of air, in kg/s.

(c) the rate of heat transfer, in kW, to the working fluid passing through the combustor.

(d) the thermal efficiency.

9.59 An ideal air-standard regenerative Brayton cycle produces 10 MW of power. Operating data at principal states in the cycle are given in the table below. The states are numbered as in Fig. 9.14. Sketch the T–s diagram and determine

(a) the mass flow rate of air, in kg/s.

(b) the rate of heat transfer, in kW, to the working fluid passing through the combustor.

(c) the thermal efficiency.