👉 A work fluid, also known as process fluid or working fluid, is a substance used in various industrial processes and machinery to transfer energy, perform mechanical work, or facilitate chemical reactions. It can take the form of liquids, gases, or even slurries, and is selected based on its specific properties such as viscosity, density, thermal conductivity, and chemical stability. Work fluids are crucial in applications like power generation, refrigeration, cooling systems, and manufacturing processes, where they enable the conversion of energy from one form to another or the execution of mechanical tasks. Examples include water in hydraulic systems, steam in power plants, and oil in engines and lubrication systems. Their effective use is vital for optimizing performance, efficiency, and safety in numerous industrial applications.