The refrigeration cycle of Fig. 4.70 operates with R134a. It is powered by an input of 30

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The refrigeration cycle of Fig. 4.70 operates with R134a. It is powered by an input of 30 kW to the compressor. Determine the cooling rate and the COP. The inlet pressure to the compressor is
a) 120 kPa,
b) 140 kPa,
c) 180 kPa.
Figure 4.70

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Thermodynamics for Engineers

ISBN: ?978-1133112860

1st edition

Authors: Kenneth A. Kroos, Merle C. Potter

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Question Posted: Jun 29, 2016 05:21 AM

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The refrigeration cycle of Fig. 4.70 operates with R134a. It is powered by an input of 30

Question:

Q Cond Condenser 1 MPa, 60 C Compressor С 30 kW 0 Evaporator Throttle QEvap

Step by Step Answer:

a State 1 P 1 120 kPa x 1 1 Table D2 gives h 1 2339 kJkg State 2 P 2 1 MPa T 2 60C Table D3 gives h ...View the full answer

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