Lämmönvälitysaine

Lämmönvälitysaine, often translated as heat transfer fluid or thermal fluid, is a substance used to transport thermal energy from one location to another. These fluids are employed in systems where direct heating or cooling is impractical or impossible. The primary function of a lämmönvälitysaine is to absorb heat at a source, transport it through a circulation system, and release it at a destination.

The selection of a specific lämmönvälitysaine depends on several factors, including the operating temperature range, pressure, required heat transfer efficiency, and compatibility with system materials. Common types include water, oils, glycols (like ethylene glycol or propylene glycol), and specialized synthetic fluids. Water is widely used due to its excellent heat transfer properties and low cost, but its use is limited by its freezing and boiling points. Glycols are often added to water to lower the freezing point and raise the boiling point, making them suitable for a wider range of temperatures.

Heat transfer oils are utilized in high-temperature applications where water or glycol mixtures would vaporize or decompose. Synthetic heat transfer fluids offer a broader operating range and enhanced thermal stability compared to mineral oils. In specialized applications, molten salts or refrigerants can also serve as lämmönvälitysaine. These fluids are crucial components in various industrial processes, including heating, cooling, power generation, and chemical reactions, enabling efficient and controlled thermal management.