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refrigeration system operating between pressure limits of 0.8 stage operates on an ideal vapor compression refrigeration cycle with 2. Consider a 2 stage cascade and 0.14 MPa. Each R-134a as refrigerant. Heat rejection from the lower cycle to the upper cycle takes place in an adiabatic counter flow heat exchanger where both streams enter at about 0.32 MPa. If the mass flow rate of the refrigerant through the upper cycle is 0.05 kg/s, determine the mass flow rate of the refrigerant through the lower cycle and the COP of the cascade refrigerator.

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solve it carefully please

air condition & refrigerator

engineering   Mechanical-Engineering   
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Answer #1

0.8MP 2. o 32 MPa 3 Fsrom the table exchangen 118 KwLul ะ 。 OS (210 32-251-88) + o o33 ( 2ss 53-233-16) ω netih 1-6 Co-P = 4.4-6

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