http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유도공기 및 에어커튼을 이용한 주방 레인지후드 성능 개선에 관한 수치모사
손덕영(Deok-Young Sohn),임지홍(Ji-Hong Lim),최윤호(Yun-Ho Choi),박재훈(Jae-Hoon Park) 대한설비공학회 2007 설비공학 논문집 Vol.19 No.4
In an apartment house that is generally air-tight and well insulated, the combustion gas from cooking devices is the major source of air pollution in the kitchen. It spreads throughout the house affecting the overall indoor air quality. In this study, the performance of the kitchen range hood which employs air induction and air curtain was investigated by numerical simulation. The results are compared with that of two other kitchen range hoods which are in general use. The two general types of range hoods considered in the present calculations are box and plate type range hoods. The former has a large capture space between the filter and suction duct, while the latter has little. It was found that the capture efficiency of the kitchen range hood with air induction and air curtain is higher than that of the general types of range hoods by 20% approximately. The reason may be because the air induction and the air curtain block the air stream escaping from the front and the side part of range hoods effectively and because an additional fan for air induction and air curtain increases suction flow rates.
손덕영 ( Deok Young Sohn ),권순정 ( Soon Jung Kwon ),최윤호 ( Yun Ho Choi ) 한국의료복지건축학회(구 한국의료복지시설학회) 2014 의료·복지 건축 Vol.20 No.1
Purpose: In this study, we performed ventilation simulations for a standard isolation ward including three intensive care rooms, one anteroom(buffer room), and its recommended ventilation equipments. The purpose of this study is to predict outflow of pathogenic bacteria from patient breath to verify the reliability and the safety of the isolation ward. Methods: We suppose three scenarios of the movement of medical staff. The leakage of patient`s breath to out of the ward is predicted in these scenarios using CFD simulations. Results: The patient`s breathe leakage rate to out of the ward in scenario 1 according to room air changes per hour(ACH : 6 and 12) is predicted to be 0.000057% and 0.00002%, respectively. The patient`s breath leakage rate to out of the ward in scenario 2 according to room air changes(ACH : 6 and 12) is predicted to be 0.00063% and 0.00019%, respectively. The patient`s breathe leakage rate to out of the ward in scenario 3, which is the worst case(6 room air changes) is predicted to be 0.1%. Implications: Through the ventilation simulation like that in this study, the reliability and the safety on isolation performance of various plan of isolation ward are predicted quantitatively.