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Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at constant pressure. Air is employed to extract the thermal power from the refrigerant. The temperature of air with a mass flow rate of 90,253.4 kg/h increases from 7.2 °C to 45 °C. Determine the mass flow of the refrigerant in the device. Take the specific heat of air to be 1.005 kJ/kg and give your answer in kg/s to 1 decimal place.

Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at constant pressure. Air is employed to extract the thermal power from the refrigerant. The temperature of air with a mass flow rate of 90,253.4 kg/h increases from 7.2 °C to 45 °C. Determine the mass flow of the refrigerant in the device. Take the specific heat of air to be 1.005 kJ/kg and give your answer in kg/s to 1 decimal place.

Elements Of Electromagnetics
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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Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at constant pressure. Air is employed to extract the thermal power from the refrigerant. The temperature of air with a mass flow rate of 90,253.4 kg/h increases from 7.2 °C to 45 °C. Determine the mass flow of the refrigerant in the device. Take the specific heat of air to be 1.005 kJ/kg and give your answer in kg/s to 1 decimal place.
Transcribed Image Text:Refrigerant R-134a at 1.2 MPa and 75 °C is condensed to a saturated liquid in a condenser at constant pressure. Air is employed to extract the thermal power from the refrigerant. The temperature of air with a mass flow rate of 90,253.4 kg/h increases from 7.2 °C to 45 °C. Determine the mass flow of the refrigerant in the device. Take the specific heat of air to be 1.005 kJ/kg and give your answer in kg/s to 1 decimal place.
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