| 요약2 |
In high-rise office buildings, the stack effect problems may not be fully solved by architectural measures. Previous studies suggested mechanical pressurization by the ventilation system to effectively solve the stack effect problems. In this study, for an office building under construction stages, the effectiveness of different pressurization levels of floors located above the neutral level in reducing the stack effect problems were evaluated by the pressure difference across the building envelope and the infiltration air flow rates. A computer modeling and simulations were conducted using CONTAM program based on the architectural drawings. The simulation results were analysed to evaluate architectural methods and mechanical measures to draw final measures to reduce stack effect problems in the building. When applying architectural measures and mechanical pressurization together, the required outdoor air volume was 22,147m³/h and it was bound that the infiltration air was reduced by 36,941m³/h. The reduced infiltration contributed th the reduction of heating load. |