22 May 2008
It is popular to use steam heater and steam humidifier in makeup air-handling unit in Japan. But the coefficient of performance (COP) of steam generating and humidifying by
fossil fuel is less 1. And it generates a lot of CO2. We introduce the heating and humidifying system by “heat pump and evaporative humidifier” in makeup air-handling unit, for new painting facility. This system contributes greatly to the CO2 mitigation than ever steam heater
and steam humidifier system. We report this heat pump warm water heating and evaporative humidifier system at makeup air-handling unit, COP of system, and CO2 mitigation effect.