| Title |
Prediction of Concentration Decay of VOCs Emitted from Ondol Floor and Furniture |
| Authors |
Pang Seung-Ki ; Sohn Jang-Yeul ; Park Byung-Yoon |
| Keywords |
Indoor Air Quality(IAQ) ; Ventilation ; VOCs(Volatile Organic Compounds) ; Furniture ; Floor ; Loading Factor |
| Abstract |
In this study, Ondol floor and furniture were installed in a real residence in order to measure the indoor VOCs concentration. The study was conducted in order to develop the concentration decay prediction equation of indoor BTEX (Benzene, Toluene, Ethylbenzene, Xylene) using the measured results. In addition, the graph of concentration decay of each pollutant with the variation of indoor air exchange rate was drawn up using the prediction equation. As a result, the conclusions were obtained as follows. (1) When the time-dependent concentration decay of BTEX(Benzene, Toluene, Ethylbenzene, Xylene) after the installation of floor in a real residence was estimated, the prediction equation can be expressed as logarithmic function. (2) In case of the floor, it is found that using the cumulative values of concentration measured by hours is more accurate than using the non-cumulative values, and the time-dependent indoor concentration of benzene can be estimated as 408.52(1-e-0.0031*time) with the R2 of 0.94 which is significantly high value. (3) In case of the floor, the indoor concentration of each pollutant is found to decrease rapidly as the air exchange rate rises, and it can be estimated as linear function. |