Simulation of Influence of External Wall and Window on Air Conditioning Load and Indoor Natural Temperature in Chongqing

Based on climate of Chongqing, using DeST-h software, this article simulated air conditioning load in winter and summer and indoor natural temperature in transitional seasons of a Chongqing model building with different external walls and windows, obtained that when the thickness of insulation layer is 30 mm or the self-thermal insulation is ceramic concrete wall or ash foam concrete wall, the effect of air conditioning and indoor temperature is better; when the window uses three-coat plain glass, air conditioning load is lowest, at the same time, indoor super-heat and under-cold hours are minimum. Some suggestions are given to the selections of envelope and measures to improve the indoor thermal environment.