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30-05-2024
Engineering

Answered

Bryton Cycle Based Cooling System: An aircraft refrigeration system operates based on a reverse Bryton cycle. Use the cold air standard assumption. Assume ideal cycle.
a) Show the cycle on the P-v diagram.
b) Derive a formula for the COP of the refrigeration system in terms of pressure ratio (rp=P2/P1) and k.
c) Estimate the COP value for a compression ratio of rp=2 and air as the working fluid.
d) What is the effect of compression ratio on the COP of the system?

Answer :

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