Ilmankierrätyslämpönvaihtimet

Ilmankierrätys, often translated as air recirculation or recirculated air, refers to the process of drawing air from inside a building or vehicle and returning it to the same space after it has been conditioned. This conditioning can involve heating, cooling, or filtering. In buildings, HVAC (heating, ventilation, and air conditioning) systems commonly employ ilmankierrätys. By reusing the conditioned indoor air, the system requires less energy to achieve and maintain the desired temperature compared to solely using fresh outdoor air. This is because the indoor air is already closer to the target temperature. However, ilmankierrätys can lead to a reduction in indoor air quality if not managed properly. Pollutants such as carbon dioxide, volatile organic compounds (VOCs), and airborne pathogens can accumulate in the recirculated air, potentially affecting the health and comfort of occupants. Therefore, ventilation systems often incorporate a mix of recirculated air and fresh outdoor air to balance energy efficiency with adequate air exchange. The optimal ratio depends on factors like occupancy, building type, and outdoor air quality. In vehicles, the ilmankierrätys function on the climate control system serves to prevent outside air, which may be polluted or at an uncomfortable temperature, from entering the cabin.