A hermetic compressor that uses a stationary scroll and a moving scroll is known as?

A hermetic compressor that utilizes a stationary scroll and a moving scroll is specifically known as a scroll compressor. This type of compressor operates by the eccentric movement of the moving scroll, which compresses refrigerant within the scroll wraps. The design allows for a smooth and continuous compression process, resulting in higher efficiency and lower noise compared to some other compressor types.

Scroll compressors are especially valued in residential and commercial refrigeration applications due to their compact size, reliability, and ability to handle varying load conditions effectively. They can efficiently compress refrigerants by trapping them in pockets formed between the two scrolls, further enhancing their performance in systems where energy efficiency is critical.

While the other types of compressors mentioned, such as reciprocating, rotary, and axial compressors, operate on different principles and designs, it is the unique architecture of the stationary and moving scroll in the scroll compressor that defines its operation and application in refrigeration systems.