액체식 제습시스템이 적용된 전외기 공조시스템의 공기질 개선효과

Abstract

The main purpose of this research is to evaluate the ability enhancement potential of a liquid desiccant (LD) system operation to remove microorganism particles. To verify the removal performance of microorganism particles, the experiment was conducted to modify the cases where the process air passed or bypassed the LD unit. Bacteria and fungi were considered for the measurement of the microorganism particles, with a minimum fan flow rate (800 m3/h). To verify the accuracy of the experiment, a duct system and an LD system were sealed with ducttape to prevent air leakage. Experimental results were obtained with a bio-contaminant sampler using a tryptic soy agar(TSA) and a potato dextrose agar(PDA). The measuring points were situated at a same distance from the liquid desiccant system inlet and outlet duct. The results show that the LD system has the ability to remove microorganism contaminants. The bacteria removal efficiencies were 77.5% and 81.3% for the sampling process air of 200 and 500 L, respectively, while the fungi removal efficiencies were 38.8% and 44.4% for 200 and 500 L, respectively, of sampling process air.