A two-stage vapor compression refrigeration system similar to the system in Fig. 10.10 of the textbook employs R134a as the working fluid. The intermediate system pressure is 6 bar, and the condenser operates at 12 bar. The high- and low- pressure expansion valves receive saturated liquid at 12 and 6 bars of pressure respectively. The first stage compressor receives saturated vapor at 10℃. Assume that the refrigeration capacity is 10 tons, and the compressors operate isentropically. Find: the coefficient of performance. the compressor power input, in kW.
A two-stage vapor compression refrigeration system similar to the system in Fig. 10.10 of the textbook employs R134a as the working fluid. The intermediate system pressure is 6 bar, and the condenser operates at 12 bar. The high- and low- pressure expansion valves receive saturated liquid at 12 and 6 bars of pressure respectively. The first stage compressor receives saturated vapor at 10℃. Assume that the refrigeration capacity is 10 tons, and the compressors operate isentropically. Find: the coefficient of performance. the compressor power input, in kW.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A two-stage vapor compression refrigeration system similar to the system in Fig. 10.10 of the textbook employs R134a as the working fluid. The intermediate system pressure is 6 bar, and the condenser operates at 12 bar. The high- and low- pressure expansion valves receive saturated liquid at 12 and 6 bars of pressure respectively. The first stage compressor receives saturated vapor at 10℃. Assume that the refrigeration capacity is 10 tons, and the compressors operate isentropically. Find:
- the coefficient of performance.
- the compressor power input, in kW.
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