What type of compressor is most commonly used?

The most commonly used type of compressor in refrigeration and air conditioning applications is the reciprocating compressor. This type of compressor operates by using a piston mechanism to compress the refrigerant gas, making it efficient for a wide range of applications. Reciprocating compressors are versatile and can handle varying capacities while maintaining efficiency across different operating conditions. They are particularly favored in smaller systems due to their ability to provide high compression ratios and their straightforward mechanical design, which simplifies maintenance and repair.

Additionally, reciprocating compressors are well-suited for a variety of refrigerants, making them adaptable to many different settings, including residential and commercial applications. Their robustness and reliability have contributed to their widespread use, especially in applications requiring precise temperature control and flexibility in capacity adjustments.