The heat recovery fresh air unit transfers the heat (or cold) from the polluted air discharged indoors to the fresh air entering outdoors through its built-in heat exchange core, such as a total heat exchanger or sensible heat exchanger. The specific process is as follows:
Separation of exhaust and fresh air: Indoor high-temperature (or low-temperature) exhaust gases enter the unit through the exhaust duct, while fresh outdoor air is introduced through the fresh air duct.
Heat exchange: In the heat exchange core, the exhaust air and fresh air transfer heat through thermal conductive materials such as aluminum foil or special film. For example, in winter, the heat from indoor warm air is transferred to fresh air, which is preheated and enters the room; In summer, the opposite is true.
Hawkins： Fresh air output * *: Preheated (or pre cooled) fresh air is sent into the workshop, and cooled exhaust air is discharged outdoors. This method not only ensures ventilation and air exchange, but also recovers 70% -90% of thermal energy, significantly reducing energy consumption.
