kuivahöyrysterilointina

Kuivahöyryster is a Finnish term that can be translated to "dry steam" or "superheated steam." It refers to steam that has been heated beyond its saturation point, meaning its temperature is higher than the boiling point of water at the given pressure. This process typically involves removing any liquid water droplets from the steam.

Dry steam possesses distinct properties compared to saturated steam. It is less dense and carries more thermal energy per unit mass. The absence of water droplets makes it more efficient for applications where moisture can be detrimental, such as in certain industrial processes or turbines. The dryness fraction of steam is a measure of how much of the steam is in a gaseous state, with dry steam having a dryness fraction of 1 (or 100%).

The generation of dry steam usually involves passing saturated steam through a superheater, which is a heat exchanger designed to increase the steam's temperature further. This technique is employed in various sectors, including power generation, where superheated steam can improve the efficiency of steam turbines by reducing condensation and increasing the available work output. It is also used in sterilization processes and in some chemical manufacturing.