PCMmateriaalit

PCMmateriaalit, also known as Phase Change Materials, are substances that absorb and release large amounts of thermal energy during the process of melting and freezing. This occurs at a specific, nearly constant temperature. PCMs have the ability to store thermal energy in latent heat form, which is distinct from sensible heat that causes a temperature change.

The primary application of PCMs is in thermal energy storage systems. By utilizing the phase transition, PCMs can store heat when it is available and release it when needed, effectively buffering temperature fluctuations. This property makes them useful for passive temperature control in buildings, helping to maintain comfortable indoor environments and reduce the need for active heating and cooling systems. In buildings, PCMs can be incorporated into construction materials like wallboards, concrete, or insulation.

Beyond architectural applications, PCMs are also employed in various other fields. They are used in thermal packaging to maintain a stable temperature for sensitive goods like pharmaceuticals and food during transport. In electronics, PCMs can help dissipate heat from components, preventing overheating. Furthermore, PCMs are explored for their potential in solar energy storage, allowing collected solar heat to be stored and used later. The choice of a specific PCM depends on the desired operating temperature range and the required energy storage capacity. Common examples of PCMs include paraffins, salt hydrates, and fatty acids.