2. Air enters the evaporator of the air conditioning unit at 100 kPa, 27 °C and the volume flow rate of 12 m/min. Refrigerant-12 at 1.5 bar with a quality of 30% entered the evaporator through its own duct with a rate of 2 kg / min and exits as saturated vapour at the same pressure. By neglecting heat transfer, potential and kinetic energy changes, determine the a) the exit temperature of the air b) the rate of heat transfer from the air to R-12 Given that (Rair=0.287 kJ/kg.K, Cpair=1.005 kJ/kg.K)

2. Air enters the evaporator of the air conditioning unit at 100 kPa, 27 °C and the volume flow rate of 12 m/min. Refrigerant-12 at 1.5 bar with a quality of 30% entered the evaporator through its own duct with a rate of 2 kg / min and exits as saturated vapour at the same pressure. By neglecting heat transfer, potential and kinetic energy changes, determine the a) the exit temperature of the air b) the rate of heat transfer from the air to R-12 Given that (Rair=0.287 kJ/kg.K, Cpair=1.005 kJ/kg.K)

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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