👉 The operating fluid, also known as the working fluid, is a substance used in various engineering systems to transfer energy and facilitate mechanical processes. It can be a liquid, gas, or even a specialized fluid like hydraulic oil or refrigerant, depending on the application. In hydraulic systems, for instance, it enables force transmission and control of mechanical movements through fluid pressure. In thermal systems, it aids in heat transfer processes. The choice of operating fluid depends on factors such as temperature range, pressure requirements, and compatibility with system components, ensuring efficient and safe operation of the machinery.
