👉 A thermal fluid is a substance that exhibits both liquid-like and gas-like properties, making it capable of flowing and adapting its state in response to temperature changes. It is often used in heat transfer applications, such as in cooling systems, refrigeration, and power generation. Examples of thermal fluids include water, ethylene glycol, and various organic compounds like propylene glycol. These substances have low viscosity at high temperatures and high density at low temperatures, allowing them to efficiently transfer heat while maintaining a stable flow. The unique properties of thermal fluids enable them to serve as effective mediums for heat exchange and energy transfer in numerous industrial and technological processes.