Refrigerant 134a enters an air conditioner compressor at 4 bar, 20°C, and is compressed at steady state to 12 bar, 80°C. The volumetric flow rate of the refrigerant entering is 4.5 m³/min. The work input to the compressor is 72 kJ per kg of refrigerant flowing. Neglecting kinetic and potential energy effects, determine the magnitude of the heat transfer rate from the compressor, in kW. Q cv = 36.607 x KW

Refrigerant 134a enters an air conditioner compressor at 4 bar, 20°C, and is compressed at steady state to 12 bar, 80°C. The volumetric flow rate of the refrigerant entering is 4.5 m³/min. The work input to the compressor is 72 kJ per kg of refrigerant flowing. Neglecting kinetic and potential energy effects, determine the magnitude of the heat transfer rate from the compressor, in kW. Q cv = 36.607 x KW

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

Refrigerant 134a enters an air conditioner compressor at 4 bar, 20°C, and is compressed at steady state to
12 bar, 80°C. The volumetric flow rate of the refrigerant entering is 4.5 m³/min. The work input to the
compressor is 72 kJ per kg of refrigerant flowing. Neglecting kinetic and potential energy effects,
determine the magnitude of the heat transfer rate from the compressor, in kW.
Q cv = 36.607
x KW

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