REFRIGERATION ENGINEERING (!)USE SHAPIRO AND MORAN TABLE 3. A refrigerated room is kept at -35°C by a vapor-compression cycle with R-134a as the refrigerant. Heat is rejectedto cooling water that enters the condenser at 16°C at a rate of 0.45 kg/s and leaves 26°C. The refrigerant entersthe condenser at 1.2 MPa and 50°C and leaves at the same pressure sub-cooled by 5°C. If the compressorconsumes 74 kW of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigerant load, (c) thecoefficient of performance and, (d) the minimum power input to the compressor for the same refrigerant load.

Given: Room temperature TL=-35 oC Refrigerant-R-134 Tw1=16oC Tw2=26oC mw=0.45 kg/s P1=1.2 MPa…

A refrigerated room is kept at -35°C by a vapor-compression cycle with R-134a as the refrigerant. Heat is rejecte to cooling water that enters the condenser at 16°C at a rate of 0.45 kg/s and leaves 26°C. The refrigerant enter the condenser at 1.2 MPa and 50°C and leaves at the same pressure sub-cooled by 5°C. If the compresso consumes 74 kW of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigerant load, (c) the coefficient of performance and, (d) the minimum power input to the compressor for the same refrigerant load.

A refrigerated room is kept at -35°C by a vapor-compression cycle with R-134a as the refrigerant. Heat is rejecte to cooling water that enters the condenser at 16°C at a rate of 0.45 kg/s and leaves 26°C. The refrigerant enter the condenser at 1.2 MPa and 50°C and leaves at the same pressure sub-cooled by 5°C. If the compresso consumes 74 kW of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigerant load, (c) the coefficient of performance and, (d) the minimum power input to the compressor for the same refrigerant load.

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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