포타슘 카보네이트를 이용한 객실 내 이산화탄소 흡착 연구

초록

Carbon dioxide (CO2) is continuously generated by breathing of passengers, and it may be very high if proper ventilation is not carried out. For this reason, CO2 concentration is widely used as an indicator of ventilation. In Korea, CO2 concentration is guided to be kept lower than certain value by Korean Ministry of Environment. Ventilation is one of the easiest way to lower CO2 concentration, but ventilation may cause various adverse effect, e.g., thermal discomfort, unpleasant wind, and inflow of outdoor pollutants. In this study, CO2 could be adsorbed on potassium carbonate (K2CO3) to lower the indoor CO2 concentration of cabin. CO2 adsorbent could be prepared by mixing K2CO3 with zeolite, and it was dried before use. CO2 adsorption characteristics of CO2 adsorbent prepared under various conditions were investigated. The effect of drying temperature, flow rate, initial CO2 concentration was also studied.