| Title |
A Methodological Ventilation Design Standardization of High-rise Apartment by wind Tunnel Experiment |
| Abstract |
Infiltration is uncontrolled air flow through cracks, interstices and other such openings. A prime force producing internal flows in a naturally ventilated structure is external wind pressure.Wind pressure coefficients of high rise buildings were measured by wind tunnel testing. Infiltration rate and indoor CO2 concentration were estimated by computer simulation. Infiltration rate was derived from the results of wind tunnel testing. The concentration of CO2 was measured by field survey.The computed and measured carbon dioxide concentration is compared and the result verifies simulation model. For the conclusion of this study, the nomogram which can predicts natural ventilation con-sidering indoor air quality is suggested.General conclusions and highlights are as follows;1) Average difference of wind pressure coefficient is the highest in the first row of multiunit building complex. The coefficients tend to decrease when the wind direction is changed. 2) Simulated infiltration rate(air change rate) is proportionally increased with the difference of wind pressure coefficient, and indoor CO2 concentration is decreased with air change rate. 3) CO2 average concentration measured in November is 900ppm~1250ppm, and it is higher than the minimum concentration which is 1000ppm. |