Mechanical Engineering ReferencePoint Suite
Use these ReferencePoints to learn about several mechanical engineering topics, including fluid dynamics and heat transfer.
TABLE OF CONTENTS Mechanical Engineering ReferencePoint Suite
Point 2: Performance Parameters of Refrigerant Compressors
Deepak Baid
Performance of an air-conditioning system depends on the design of various components, such as evaporator and compressor. 80 to 85% of the efficiency of an air-conditioning system depends on the compressor. You can obtain the remaining efficiency by enhancing the system capacity. You can enhance the system capacity by efficiently designing and selecting the other system components, such as condenser, blower, evaporator, and expansion valve.
This article describes various types of compressors, such as rotary, screw, and scroll. It describes their construction and performance curves, and explains how different compressors work. In addition, the article describes how the operating and system design parameters of the refrigerating compressors enhance their performance. It also explains how you can enhance the performance of an air-conditioning system by increasing the refrigerating capacity and decreasing the power requirement of the system.
An Air-Conditioning System
An air-conditioning system supplies treated air in an enclosed space. The treated air is supplied at a specific rate to counteract the heat and moisture gains in the enclosed space. This helps maintain the temperature and humidity within the required limits. The air-conditioning system uses the vapor compression refrigeration cycle as the cooling mechanism. This cycle uses a fluid called refrigerant, which provides cooling to the air-conditioning system. To remove heat from the air-conditioned space, the vapor compression refrigeration cycle utilizes the thermal energy, which changes the state of the refrigerant from liquid to vapor. The vapor compression refrigeration cycle includes components, such as compressor, condenser, evaporator, and expansion...
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