The Impact Of Climate Change On The Building Energy Consumption In Tianjin

China is the country of the huge energy consumption, and climate warming will change the demand .This paper studied on the impact of building consumption due to climate change in order to provide a reference.First of all, the dry-bulb temperature and wet-bulb temperature that was recorded 4times everyday was interpolated into hourly meteorological date, and hourly solar radiation was obtained using astronomy radiation and daily solar radiation, then simulated 30% and 50% and 65% of energy conservation in residential building, office building and market building from 1960 to 2010; then future monthly weather was forecasted by MIROC3.2 for SRES A1B and B1, then energy consumption was estimated by the Principal component analysis and regression analysis.We drawed the following conclusions:For residential building, the heat load was very close to outdoor temperature, and for SRES A1B, average heat load will be reduced by 22% from 1960 to 2100 for the first-step energy-saving of residential buildings, and average heat load will be reduced by 23% for the second-step energy-saving of residential buildings, and average heat load will be reduced by 25% for the third-step energy-saving of residential buildings; for SRES B1,the heat load was reduced slowly.For office building, the cool load will increase linearly. For SRES A1B, the future will increase by 78%, and for SRES B1, the future will increase by 54%; however, the heat load will reduce linearly, For SRES A1B, the future will reduce by 23.0%, and for SRES B1, the future will increase by 17.6%.For market building, there are some differences compared with office building. For SRES A1B, the future will increase by 52%, and for SRES B1, the future will increase by 37%; however, hear load will reduce linearly, For SRES A1B, the future will reduce by 31.8%, and for SRES B1, the future will increase by 27.4%.