👉 A heat fluid is a substance used in thermal systems, such as power plants and refrigeration cycles, to transfer heat efficiently between different parts of a system. Unlike water or steam, which can be limited by their phase changes and boiling points, heat fluids are specifically engineered to operate under high temperatures and pressures, making them ideal for applications where conventional liquids would not perform optimally. Common heat fluids include synthetic oils, molten salts, and supercritical CO2, each chosen for their unique properties like high thermal conductivity, stability at extreme temperatures, and low vapor pressure. These characteristics ensure efficient heat transfer, minimal energy loss, and safe operation in demanding industrial processes.
