夏热冬冷地区智能窗节能潜力分析

Energy Saving Analysis of Smart Windows in Hot Summer and Cold Winter Zone

利用eQUEST建筑能耗模拟软件对比分析了智能窗、Low-E中空玻璃应用于夏热冬冷地区某图书馆建筑时的节能潜力。结果表明:相较于目前广泛使用的单层透明玻璃,三种类型的Low-E中空玻璃都具有约3%的总能耗降低幅度,其中高透型Low-E中空玻璃在该地区最为节能;虽然窗体翻转技术能进一步降低建筑总能耗,但与自身固定型相比,节能效果并不理想;与预期一致,智能窗节能潜力巨大,当采用逐时优化方案后,建筑总能耗和空调制冷制热能耗较单层透明玻璃分别可节能8. 73%和19. 86%,即使是相较于高透型Low-E中空玻璃,总能耗和HVAC能耗节能率也分别高达5. 80%和13. 76%。

Using eQUEST software,the energy saving of smart windows and Low-E insulating glasses in a hot summer and cold winter zone are simulated.The results show that three types of Low-E insulating glasses have almost 3%reduction of the total energy consumption when compared with the single transparent glass which is using widely currently.Among the three types,the high transparency Low-E insulating glass is the one with most energy-saving in this simulation.Although windows reversible technology can further reduce the total energy consumption,the energy saving effect is not ideal.As expected,smart windows have great potential for energy saving.The energy-saving rate of total energy consumption and energy consumption from air conditioning and heating can reach 5.80%and 13.76%respectively,even compared with high transparency Low-E insulating case.