Effectiveness of photocatalytic filter for removing volatile organic compounds in the heating, ventilation, and air conditioning system

Kuo Pin Yu*, Grace Whei-May Lee, Wei Ming Huang, Chih Cheng Wu, Chia Iing Lou, Shinhao Yang

*此作品的通信作者

研究成果: Article同行評審

36 引文 斯高帕斯(Scopus)

摘要

Nowadays, the heating, ventilation, and air conditioning (HVAC) system has been an important facility for maintaining indoor air quality. However, the primary function of typical HVAC systems is to control the temperature and humidity of the supply air. Most indoor air pollutants, such as volatile organic compounds (VOCs), cannot be removed by typical HVAC systems. Thus, some air handling units for removing VOCs should be added in typical HVAC systems. Among all of the air cleaning techniques used to remove indoor VOCs, photocatalytic oxidation is an attractive alternative technique for indoor air purification and deodorization. The objective of this research is to investigate the VOC removal efficiency of the photocatalytic filter in a HVAC system. Toluene and formaldehyde were chosen as the target pollutants. The experiments were conducted in a stainless steel chamber equipped with a simplified HVAC system. A mechanical filter coated with Degussa P25 titania photocatalyst and two commercial photocatalytic filters were used as the photo-catalytic filters in this simplified HVAC system. The total air change rates were controlled at 0.5, 0.75, 1, 1.25, and 1.5 hr−1, and the relative humidity (RH) was controlled at 30%, 50%, and 70%. The ultraviolet lamp used was a 4-W, ultraviolet-C (central wavelength at 254 nm) strip light bulb. The first-order decay constant of toluene and form-aldehyde found in this study ranged from 0.381 to 1.01 hr−1under different total air change rates, from 0.34 to 0.433 hr−1under different RH, and from 0.381 to 0.433 hr−1for different photocatalytic filters.

原文English
頁(從 - 到)666-674
頁數9
期刊Journal of the Air and Waste Management Association
56
發行號5
DOIs
出版狀態Published - 5月 2006

指紋

深入研究「Effectiveness of photocatalytic filter for removing volatile organic compounds in the heating, ventilation, and air conditioning system」主題。共同形成了獨特的指紋。

引用此