What type of compressors are typically used in low pressure chillers?

In low-pressure chillers, centrifugal compressors are commonly used due to their efficiency and capability to handle larger volumes of refrigerant at relatively lower pressures compared to other types of compressors. These compressors operate based on the principle of converting kinetic energy into pressure energy, which allows them to provide a smooth and continuous flow of refrigerant.

Centrifugal compressors tend to be preferred in larger installations because they are able to maintain high efficiency across varying loads, making them suitable for applications that require consistent performance over extended periods. Their design also allows for less vibration and lower noise levels, which is beneficial in commercial environments.

While other compressor types like reciprocating, scroll, and rotary can be used in various refrigeration and air conditioning applications, they are generally better suited for different pressure ranges or system designs. For instance, reciprocating compressors are more common in applications that require a wider range of operating conditions, but they may not be as efficient in low-pressure applications as centrifugal compressors are. Similarly, scroll and rotary compressors have their advantages, but they typically operate best at medium to high pressures rather than the low-pressure range associated with these chillers.