two-stage age cascade reingeration system operates between the condenser pressure of 440 psia and evaporator pressure of 120 psia with R-410a as the working fluid. Heat rejection from the lower cycle to the upper cycle takes place in an adiabatic counter-flow heat exchanger at an intermediate pressure. In both cycles, the refrigerant is a saturated liquid at the condenser exit and a saturated vapor at the compressor inlet, and the isentropic efficiency of the compressor is 80% at the lower cycle and 85% at the upper cycle. If the mass flow rate of the refrigerant through the lower cycle is 0.3 lb/s, determine: a. the mass flow rate of the refrigerant through the upper cycle ib/s b. the rate of heat removal from the refrigerated space. TR c. the rate of heat removal from the refrigeration system BTU/hr

two-stage age cascade reingeration system operates between the condenser pressure of 440 psia and evaporator pressure of 120 psia with R-410a as the working fluid. Heat rejection from the lower cycle to the upper cycle takes place in an adiabatic counter-flow heat exchanger at an intermediate pressure. In both cycles, the refrigerant is a saturated liquid at the condenser exit and a saturated vapor at the compressor inlet, and the isentropic efficiency of the compressor is 80% at the lower cycle and 85% at the upper cycle. If the mass flow rate of the refrigerant through the lower cycle is 0.3 lb/s, determine: a. the mass flow rate of the refrigerant through the upper cycle ib/s b. the rate of heat removal from the refrigerated space. TR c. the rate of heat removal from the refrigeration system BTU/hr

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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