A refigerator uses refigerant-134a as the working fluid and operates on the vapo

Question

A refigerator uses refigerant-134a as the working fluid and operates on the vapor-compression refigeration cycle. The evaporator and condenser pressures are 300 kPa and 1400 kPa respectively. The isentropic efficiency of the compressor is 88%. The refigerant enters the compressor at a rate of .025 kg/s superheated by 10.1 degrees C and leaves the condenser subcooled by 4.4 degrees C. Determine (a) the rate of cooling provided by the evaporator, the power input, and the COP. Determine (b) the same parameters if the cycle operated ont he ideal vapor-compression refrigeration cycle between the same pressure limits.

Explanation / Answer

Here is the solution : http://gyazo.com/0709abf9abfaa76e507c0ba87baf8fcb.png Found it on google luckily. Please rate!

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