👉 The operating fluid, often referred to as the working fluid or coolant in engineering contexts, is a substance used to transfer heat away from critical components of a system, such as engines or electronic devices. It circulates through the system, absorbing heat from the components it contacts and then dissipating that heat to a heat exchanger or radiator where it is expelled. This process ensures that the system operates within safe temperature limits, preventing overheating and potential damage. Common operating fluids include water, ethylene glycol mixtures, oils, and refrigerants, each chosen based on the specific requirements of the application, such as temperature range, pressure, and compatibility with system materials.
