Envelope Structure Design and Energy Consumption Analysis of "Zero Energy" Public Building in Hot Summer and Cold Winter Area

"Zero energy buildings" refers to the buildings which don't consume the conventional energy and rely entirely on renewable energy to achieve the goal that the primary net energy consumption is zero. In this paper, the external envelope of the public building in Wuxi is designed for heat preservation and insulation, and the energy-saving analysis software is used to make the energy consumption analysis of non energy-saving building and energy-saving building. Simulation results show that using heat preservation and insulation measures of the building envelope and renewable energy to support the construction operation can effectively achieve the goal of zero energy consumption building.