Natural Ventilation in Large and Multicelled Buildings: Theory, Measurement and Prediction: Final Report

摘要

Methodologies for determining infiltration rates of large and complex buildings have been established. Solutions to this, hitherto, interactable problem have been obtained using a combination of theoretical and experimental studies. Comprehensive information regarding interzonal air movements might be obtained from experimental techniques using multiple tracer gases. Field measurements to determine interzonal flows were carried out in office buildings using automated measurement systems developed for this purpose. Theoretical and experimental work showed that is is probably sufficient to seed part of a complex building with a single tracer gas to measure the overall infiltration rate to a good approximation. Prediction models have been used to determine the effectiveness of draughtstripping windows on the energy consumption of an office building. The predicted infiltration rates compared well with measured values. Energy calculations showed that, for this particular building, draughtripping windows has reduced by 21% the seasonal gas consumption. 77 refs., 76 figs., 66 tabs. (ERA citation 13:008979)