Numerical Study on the Effect of Natural Ventilation and Optimal Orientation of Residential Buildings in Changsha, China

摘要

Indoor environment affects human's health directly.In residential buildings,natural ventilation can be applied as an effective way of ventilation.Different window-opening behavior results in different indoor environment.Five window-opening behavior of a common residential building in Changsha were compared and analyzed by using Airpak.Energy consumption of building with different orientation was calculated by DesignBuilder according to the Changsha typical meteorological data.A new evaluation index was proposed to compare the design schemes with consideration of the performance of natural ventilation and the building energy consumption.The optimal scheme combination of the building orientation and the opening's position was obtained by the index.