ESCO Air Conditioning Practice Exam

Which type of air conditioning compressor is most energy-efficient?

1. Centrifugal

2. Reciprocating

3. Rotary

4. Scroll

The correct answer is: Centrifugal

Centrifugal compressors are the most energy-efficient type of air conditioning compressor among the options provided. Centrifugal compressors are known for their high efficiency levels and are commonly used in larger HVAC systems where high capacities are required. They are particularly energy-efficient at full load operation, making them a preferred choice for applications where energy efficiency is a priority. In contrast, while the other compressor types like reciprocating, rotary, and scroll compressors have their advantages, they are generally not as energy-efficient as centrifugal compressors, especially in high-capacity applications.