| Title |
A Numerical Study on Flow around Exhaust Ducts of Flue Gas from Apartment Heating Boiler |
| Keywords |
Apartment heating ; 공동주택 난방 ; Gas boiler ; 가스보일러 ; Flue gas ; 연소배기가스 ; Exhaust duct ; 배기관 ; Numerical method ; 수치법 ; Large eddy simulation ; 대와류모사 |
| Abstract |
Flue gas from apartment heating gas boiler is exhausted outside through an exhaust duct mounted horizontally in a vertical row on the wall. The flue gas includes nitrogen-oxides(NOx) and carbon monoxide. To investigate the possible entrainment of the flue gas into the apartments through the windows, a large eddy simulation(LES) based numerical method is utilized. Distribution of the velocity intensity and temperature around the exhaust ducts is presented for three numerical parameters: exhaust velocity, temperature of the flue gas, and exhaust duct length. The flow field visualized with particles inserted at the ends of the ducts is also presented. The results clearly show that the exhausted flue gas may flow into the apartments when the windows are open. |