(6) An R-12 standard refrigeration cycle operates at an evaporating pressure of 386 kPa and a condensing pressure of 1009 kPa. Show the effects of decreasing the vaporizing pressure to 270 kPa on the following: For a unit mass, (a) refrigerating effect, (b) COP, and (c) work. For a refrigerating capacity of 1 kW, (d) power, (e) mass flow rate, (f) heat rejected, and (g) volume flow rate.
(6) An R-12 standard refrigeration cycle operates at an evaporating pressure of 386 kPa and a condensing pressure of 1009 kPa. Show the effects of decreasing the vaporizing pressure to 270 kPa on the following: For a unit mass, (a) refrigerating effect, (b) COP, and (c) work. For a refrigerating capacity of 1 kW, (d) power, (e) mass flow rate, (f) heat rejected, and (g) volume flow rate.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter1: Basic Modes Of Heat Transfer
Section: Chapter Questions
Problem 1.75P: Referring to Problem 1.74, how many kilograms of ice can a 3-ton refrigeration unit produce in a...
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An R-12 standard refrigeration cycle operates at an
evaporating pressure of 386 kPa and a condensing pressure of 1009
kPa. Show the effects of decreasing the vaporizing pressure to 270
kPa on the following: For a unit mass, (a) refrigerating effect, (b)
COP, and (c) work. For a refrigerating capacity of 1 kW, (d)
power, (e) mass flow rate, (f) heat rejected, and (g) volume flow
rate.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3b992436-7779-457f-8ce9-2db968d23961%2F63e7ba08-32fe-48ee-a084-e5b23799c61f%2Fhgtmb2_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(6)
An R-12 standard refrigeration cycle operates at an
evaporating pressure of 386 kPa and a condensing pressure of 1009
kPa. Show the effects of decreasing the vaporizing pressure to 270
kPa on the following: For a unit mass, (a) refrigerating effect, (b)
COP, and (c) work. For a refrigerating capacity of 1 kW, (d)
power, (e) mass flow rate, (f) heat rejected, and (g) volume flow
rate.
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