a) A rigid tank containing refrigerant 134a is initial at -18 °C with the quality of 30%. Due to failure of its refrigeration system, the fluid is warming up at a rate of 3°C per hour. Calculate the time taken (in minute) for the refrigerant to be single phase. Determine the final pressure of R-134a kPa. Sketch and label the heating process in a P-v diagram with respect to saturated line. Finally, determine the total amount of heat absorbed (in kJ/kg) for this process.

a) A rigid tank containing refrigerant 134a is initial at -18 °C with the quality of 30%. Due to failure of its refrigeration system, the fluid is warming up at a rate of 3°C per hour. Calculate the time taken (in minute) for the refrigerant to be single phase. Determine the final pressure of R-134a kPa. Sketch and label the heating process in a P-v diagram with respect to saturated line. Finally, determine the total amount of heat absorbed (in kJ/kg) for this process.

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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