Kaasunestelämmönsiirto

Kaasunestelämmönsiirto, known in English as gas-liquid heat transfer, refers to the process of heat exchange between a gas and a liquid phase. This phenomenon is fundamental in many natural and industrial processes. In natural settings, it plays a role in phenomena like evaporation from water bodies into the atmosphere and condensation of water vapor onto cooler surfaces.

Industrially, kaasunestelämmönsiirto is critical in a wide array of applications. Heat exchangers utilizing this principle are common in chemical processing, power generation, and refrigeration systems. For instance, in a power plant condenser, steam (gas) is condensed into water (liquid) by transferring heat to cooling water. Similarly, in evaporators used in food processing or chemical purification, a liquid is turned into a gas, requiring heat input from a gas or another fluid.

The efficiency of kaasunestelämmönsiirto depends on several factors, including the temperature difference between the gas and liquid, the surface area available for heat transfer, and the properties of the fluids themselves, such as their specific heat, thermal conductivity, and viscosity. Phase change, such as boiling or condensation, significantly enhances heat transfer rates due to the latent heat involved. Understanding and optimizing these processes are crucial for designing effective and energy-efficient thermal systems.