A gas refrigeration cycle with a pressure ratio of 4 uses helium as the working fluid. The temperature of the helium is -6 o c at the compressor inlet and 50 o c at the turbine inlet. Assuming isentropic efficiencies of 85 percent for both the turbine and the compressor, determine (a) the minimum temperature in the cycle, (b) the coefficient of performance, and (c) the mass flow rate of the helium for a refrigeration rate of 25 kw. Use cp he =5.1926 kj/kg.K and specific heat ratio k=1.67.
Answers
Answered by
2
Answer:
Make sure that all words are spelled correctly.
Try different keywords.
Try more general keywords.
Similar questions