Question 1Refrigeration & AC - 1st Asst/Chief
70% to passCapacity control of a centrifugal refrigeration compressor can be accomplished by what means?
Avarying the position of the hot gas bypass valve
Bvarying the position of the suction inlet damper vanes
Cvarying the speed of the compressor
Dall of the above
AI Explanation
The correct answer is D) all of the above. Capacity control of a centrifugal refrigeration compressor can be accomplished by varying the position of the hot gas bypass valve, varying the position of the suction inlet damper vanes, or varying the speed of the compressor. These methods allow the system to adjust the refrigerant flow and compression to match the cooling load, improving efficiency and preventing short-cycling of the compressor. The other options are incorrect because they do not encompass all the possible means of capacity control for a centrifugal refrigeration compressor.
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