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Consider a two-stage cascade refrigeration system operating between -80 o C and 80 o C. Each stage operates on an ideal vapor-compression refrigeration cycle. Upper cycle use R- 12 as working fluid, lower cycle use R- 13. In the lower cycle refrigerant condenses at O o C, in the upper cycle refrigerant evaporates at -5 o C. If the mass flow rate in the lower cycle is 1 kg/s, determine what would with COP be if we consider a one-stage ideal vapor-compression system between -80 o C and 80 o C with R-13 as the working fluid? O 1.21 O 1.51 1.48 O No COP

Consider a two-stage cascade refrigeration system operating between -80 o C and 80 o C. Each stage operates on an ideal vapor-compression refrigeration cycle. Upper cycle use R- 12 as working fluid, lower cycle use R- 13. In the lower cycle refrigerant condenses at O o C, in the upper cycle refrigerant evaporates at -5 o C. If the mass flow rate in the lower cycle is 1 kg/s, determine what would with COP be if we consider a one-stage ideal vapor-compression system between -80 o C and 80 o C with R-13 as the working fluid? O 1.21 O 1.51 1.48 O No COP

Elements Of Electromagnetics
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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Consider a two-stage cascade refrigeration system operating between -80 o C and 80 o C. Each stage operates on an ideal vapor-compression refrigeration cycle. Upper cycle use R- 12 as working fluid, lower cycle use R- 13. In the lower cycle refrigerant condenses at O o C, in the upper cycle refrigerant evaporates at -5 o C. If the mass flow rate in the lower cycle is 1 kg/s, determine what would with COP be if we consider a one-stage ideal vapor-compression system between -80 o C and 80 o C with R-13 as the working fluid? 1.21 O 1.51 1.48 O No COP
Transcribed Image Text:Consider a two-stage cascade refrigeration system operating between -80 o C and 80 o C. Each stage operates on an ideal vapor-compression refrigeration cycle. Upper cycle use R- 12 as working fluid, lower cycle use R- 13. In the lower cycle refrigerant condenses at O o C, in the upper cycle refrigerant evaporates at -5 o C. If the mass flow rate in the lower cycle is 1 kg/s, determine what would with COP be if we consider a one-stage ideal vapor-compression system between -80 o C and 80 o C with R-13 as the working fluid? 1.21 O 1.51 1.48 O No COP
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