2.5 lbm of ammonia in a piston-cylinder assembly undergoes a refrigeration cycle consisting of 4 processes: • Process 1-2: Adiabatic compression from a saturated vapor at 0°F to 70 lb/in", 100°F. • Process 2-3: Isobaric compression to a saturated liquid • Process 3-4: Polytropic expansion with n = 0.25 until TA =T • Process 4-1: Isobaric expansion (a) Sketch the cycle on p-v and T-v coordinates (b) Determine the work and heat transfer in each process, in BTU (c) Determine the coefficient of performance 2.5 lbm of ammonia in a piston-cylinder assembly undergoes a refrigeration cycle consisting of 41processes:Process 1-2: Adiabatic compression from a saturated vapor at 0°F to 70 lbf/in2, 100 °F.Process 2-3: Isobaric compression to a saturated liquidProcess 3-4: Polytropic expansion with n = 0.25 until T4 = T1Process 4-1: Isobaric expansion(a) Sketch the cycle on p-v and T-v coordinates(b) Determine the work and heat transfer in each process, in BTU(c) Determine the coefficient of performance

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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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2.5 lbm of ammonia in a piston-cylinder assembly undergoes a refrigeration cycle consisting of 4 processes: • Process 1-2: Adiabatic compression from a saturated vapor at 0°F to 70 lb/in", 100°F. • Process 2-3: Isobaric compression to a saturated liquid • Process 3-4: Polytropic expansion with n = 0.25 until TA =T • Process 4-1: Isobaric expansion (a) Sketch the cycle on p-v and T-v coordinates (b) Determine the work and heat transfer in each process, in BTU (c) Determine the coefficient of performance

2.5 lbm of ammonia in a piston-cylinder assembly undergoes a refrigeration cycle consisting of 4
1
processes:
Process 1-2: Adiabatic compression from a saturated vapor at 0°F to 70 lbf/in2, 100 °F.
Process 2-3: Isobaric compression to a saturated liquid
Process 3-4: Polytropic expansion with n = 0.25 until T4 = T1
Process 4-1: Isobaric expansion
(a) Sketch the cycle on p-v and T-v coordinates
(b) Determine the work and heat transfer in each process, in BTU
(c) Determine the coefficient of performance

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