Question: Calculate the power required by the two compressor in an ammonia system which serves as 2 5 ton evaporator at - 4 0 c .

Calculate the power required by the two compressor in an ammonia system which serves as 25 ton evaporator at -40c. The system uses two stage compression with intercooling and removal of flash gas. The condensing temperature is 32c . Find also the COP of the system. Compare the result with a single stage compression tank.

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