soojusvedelikku

Soojusvedelikku, commonly translated as heat transfer fluid or thermal fluid, is a substance used to transfer thermal energy from one point to another. These fluids are designed to operate efficiently over a wide range of temperatures and pressures, making them essential components in many industrial and commercial applications.

The primary function of a soojusvedelikku is to absorb heat from a source and transport it to where it is needed, or conversely, to absorb excess heat and dissipate it. This heat transfer can occur through various methods, including convection, conduction, and radiation. The choice of a specific soojusvedelikku depends on factors such as the operating temperature range, required heat transfer efficiency, compatibility with system materials, safety considerations, and cost.

Common types of soojusvedelikku include water, oils (mineral, synthetic, and silicone-based), glycols (ethylene and propylene), and molten salts. Water is a widely used and cost-effective option for lower temperature applications, but its use is limited by its freezing point and boiling point. Oils offer a broader operating temperature range and are non-corrosive, but they can degrade at very high temperatures and pose a fire risk. Glycols are used in applications where freezing is a concern, such as in heating and cooling systems. Molten salts are employed in very high-temperature applications, like concentrated solar power plants.

The effectiveness of a soojusvedelikku is often measured by its thermal conductivity, specific heat capacity, viscosity, and thermal stability. Proper maintenance, including regular testing and filtration, is crucial to ensure the longevity and optimal performance of the soojusvedelikku and the system it serves.