抄録
The moisture thermal control air-cleaning method where sample air is continuously humidified with heating and dehumidified by cooling removes suspended particulate matter, SPM, from the air. This paper reports the removal characteristic of this method on SPM. A closed circulating system composed of a thermal moisture air cleaning equipment, a tank, a flow adjustment system and ducts was made and the time variation in SPM concentration was measured. The result showed continuous SPM reduction with time and the convergence of the SPM concentration. The convergence was due to equilibrium between the removal effects and leakage from outside. The variation tendency was modeled by the equation that expresses reduction in the air cleaning unit, the flow adjustment system the tank and the ducts and leakage from outside. The model showed that the important factors of this system were removal ratio of the thermal moisture swing operation and air flow rate.
