Sisälämmönvaihdin

Sisälämmönvaihdin refers to a heat exchanger used within a building's heating, ventilation, and air conditioning (HVAC) system. Its primary function is to transfer thermal energy between two or more fluid streams, typically air or liquid, without allowing them to mix. This process is crucial for energy recovery and improving the efficiency of HVAC operations.

In many applications, a sisälämmönvaihdin is employed in ventilation systems to pre-condition incoming fresh air using the thermal energy of outgoing stale air. This means that during the heating season, outgoing warm air transfers some of its heat to the incoming cold fresh air, reducing the load on the primary heating system. Conversely, in the cooling season, outgoing cool air can pre-cool the incoming warm fresh air, lessening the demand on the air conditioning system.

Different types of sisälämmönvaihdin exist, including plate heat exchangers, rotary heat exchangers (heat wheels), and heat pipes. The choice of type depends on factors such as airflow rates, desired efficiency, space constraints, and the specific application within the building's HVAC design. Regular maintenance and cleaning of the sisälämmönvaihdin are important to ensure optimal performance and prevent the buildup of contaminants. Properly functioning sisälämmönvaihdin contributes to reduced energy consumption, improved indoor air quality, and enhanced occupant comfort.