Research on optimization of building parameters for near zero energy consumption in cold regions
Aiming at the problem that the enclosure structure of near zero energy consuming build-ings in cold regions will increase the indoor cooling energy consumption in summer,a energy-saving method using air conditioning natural ventilation system in summer and transitional season is proposed.EnergyPlus software is used to simulate and study the effects of five parameters on building energy consumption,such as window wall area ratio,solar heat gain factor of outer window,heat transfer coefficient of window,heat transfer coefficient of external wall and length of cantilevered beam of outer shade,and the optimal combination of factors is determined by orthogo-nal experiments.The research results show that compared with existing buildings,the annual comprehensive energy consumption of heating and cooling in the optimal building can be saved by 43.7％.
near zero energy consumption buildingsnatural ventilationbuilding energy consump-tion
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