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# Solved: Figure P10.31 shows a two-stage, vapor-compression

ISBN: 9781118412930 139

## Solution for problem 10.31 Chapter 10

Fundamentals of Engineering Thermodynamics | 8th Edition

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Fundamentals of Engineering Thermodynamics | 8th Edition

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Problem 10.31

Figure P10.31 shows a two-stage, vapor-compression refrigeration system with two evaporators and a directcontact heat exchanger. Saturated vapor ammonia from evaporator 1 enters compressor 1 at 18 lbf/in.2 and exits at 70 lbf/in.2 Evaporator 2 operates at 70 lbf/in.2, with saturatedvapor exiting at state 8. The condenser pressure is 200 lbf/in.2,and saturated liquid refrigerant exits the condenser. Eachcompressor stage has an isentropic efficiency of 80%. Therefrigeration capacity of each evaporator is shown on thefigure. Sketch the Ts diagram of the cycle and determine(a) the temperatures, in 8F, of the refrigerant in eachevaporator.(b) the power input to each compressor stage, in horsepower.(c) the overall coefficient of performance.

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##### ISBN: 9781118412930

Since the solution to 10.31 from 10 chapter was answered, more than 475 students have viewed the full step-by-step answer. This full solution covers the following key subjects: evaporator, lbf, saturated, stage, compressor. This expansive textbook survival guide covers 14 chapters, and 1738 solutions. The answer to “Figure P10.31 shows a two-stage, vapor-compression refrigeration system with two evaporators and a directcontact heat exchanger. Saturated vapor ammonia from evaporator 1 enters compressor 1 at 18 lbf/in.2 and exits at 70 lbf/in.2 Evaporator 2 operates at 70 lbf/in.2, with saturatedvapor exiting at state 8. The condenser pressure is 200 lbf/in.2,and saturated liquid refrigerant exits the condenser. Eachcompressor stage has an isentropic efficiency of 80%. Therefrigeration capacity of each evaporator is shown on thefigure. Sketch the Ts diagram of the cycle and determine(a) the temperatures, in 8F, of the refrigerant in eachevaporator.(b) the power input to each compressor stage, in horsepower.(c) the overall coefficient of performance.” is broken down into a number of easy to follow steps, and 106 words. Fundamentals of Engineering Thermodynamics was written by and is associated to the ISBN: 9781118412930. This textbook survival guide was created for the textbook: Fundamentals of Engineering Thermodynamics, edition: 8. The full step-by-step solution to problem: 10.31 from chapter: 10 was answered by , our top Engineering and Tech solution expert on 11/14/17, 08:39PM.

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Solved: Figure P10.31 shows a two-stage, vapor-compression