| Title |
Evaluation of the Ventilation Efficiency in an Underground Sewage Disposal Plant |
| Authors |
강한기(Han Gi Kang) ; 이재헌(Jae-Heon Lee) |
| Keywords |
평균공기연령 ; 환기효율 ; 지하 수처리시설 ; 환기시스템 ; 공기교환효율 ; 국소급기지수 Mean age of air ; Ventilation efficiency ; Underground sewage disposal plant ; Ventilation system ; Air change effectiveness ; Local supply index ; |
| Abstract |
In this paper, the ventilation efficiencies of an underground sewage disposal plant were investigated for ventilating system without fan, ventilating system with eleven cross flow fans and ventilating system with sixteen cross flow fans by numerical method. It has been found that the air change effectiveness of the system without fan was predicted 0.44. It means that an additional ventilating equipment is needed to maintain good indoor air quality. For the ventilating system with sixteen cross flow fans, the air change effectiveness was predicted 0.55. The air change effectiveness of the ventilating system with eleven cross flow fans was predicted 0.51. It is known that the air change effectiveness above 0.5 is enough to eliminate pollutant and bad smell in the indoor. Therefore, it is recommended to select the ventilating system with eleven cross flow fans for the underground sewage disposal plant in an economic point of view. |