What is the main purpose of lubrication in refrigeration systems?

The primary purpose of lubrication in refrigeration systems is friction reduction. Lubricants create a thin film between moving parts, which minimizes direct contact. This reduction in friction not only helps prevent wear and tear on components, such as compressor parts, but also ensures smoother operation, leading to increased efficiency and longevity of the system. By lowering the frictional heat generated in the system, lubrication helps maintain optimal operating temperatures, contributing to overall performance and reliability.

While cooling components, sealing leaks, and cleaning surfaces are important aspects of refrigeration systems, they do not directly relate to the primary function of lubrication. For example, lubrication helps components operate effectively but does not directly provide cooling, as that is the role of coolant fluids circulating in the system. Similarly, sealing leaks is typically managed by gaskets and seals rather than lubrication, and while cleaning surfaces can be related to maintenance, it is not the primary role of lubricants within the context of their main function in refrigeration systems.