Refrigerant-134a at 1 MPa and 90°C is to be cooled to 1 MPa and 30°C in a condenser by air. The air enters at 100 kPa and 27°C with a volume flow rate of 560 m²³/min and leaves at 95 kPa and 60°C. Determine the mass flow rate of the refrigerant. The gas constant of air is 0.287 kPa.m ³/kg-K. The constant pressure specific heat of air is cp=1.005 kJ/kg.°C. The enthalpies of the R-134a at the inlet and the exit states are 324.66 kJ/kg and 93.58 kJ/kg. R-134a → P₁ = 1 MPa T₁ = 90°℃ Air V₂ m³/min |P3 = 100 kPa| T3=27°C | P₁ = 95 kPa T₁ = 60°C P₂ = 1 MPa T₂ = 30°C

Refrigerant-134a at 1 MPa and 90°C is to be cooled to 1 MPa and 30°C in a condenser by air. The air enters at 100 kPa and 27°C with a volume flow rate of 560 m²³/min and leaves at 95 kPa and 60°C. Determine the mass flow rate of the refrigerant. The gas constant of air is 0.287 kPa.m ³/kg-K. The constant pressure specific heat of air is cp=1.005 kJ/kg.°C. The enthalpies of the R-134a at the inlet and the exit states are 324.66 kJ/kg and 93.58 kJ/kg. R-134a → P₁ = 1 MPa T₁ = 90°℃ Air V₂ m³/min |P3 = 100 kPa| T3=27°C | P₁ = 95 kPa T₁ = 60°C P₂ = 1 MPa T₂ = 30°C

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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