空调结合风扇策略对建筑空调能耗的影响  

Influence of the Strategy of Combining Air-conditioning with Fans on Building Cooling Energy Use

作　　者：姚灵烨 杨小山[1] 叶燕华[1] 

机构地区：[1]南京工业大学绿色建筑与生态城市实验室,南京211800

出　　处：《建筑科学》2017年第4期15-22,共8页Building Science

基　　金：国家自然科学基金项目"多尺度城市热气候及其对建筑能耗影响的协同仿真方法研究"(51408303)

摘　　要：首先通过对比南京某办公建筑典型房间室内热环境的实测值(含过渡季自然通风工况和夏季空调+风扇工况)和基于CFD软件PHOENICS的模拟值,验证了模拟方法的可行性;然后重点研究在办公建筑中将空调与电风扇相结合的室内热环境调节策略,基于PHOENICS对不同调控方案(空调+吊扇、空调+落地扇)进行模拟,分析对人体热舒适的影响;最后运用建筑能耗模拟软件De ST定量评价各调控方案的节能潜力。研究结果表明:在办公室内通过适当调高空调设定温度并利用电风扇来提高室内空气流动速度,可在满足热舒适的同时显著降低空调能耗;相对湿度为60%时,相对于仅采用空调的方案,空调+落地扇的调节策略可在满足热舒适的同时实现节能53.7%。Firstly, the feasibility of the simulation of indoor thermal environment with the CFD software PHOENICS was confirmed by comparing the measured and simulated results of a typical office room in Nanjing, China. The comparing conditions include the natural ventilation condition in the transition season and the condition of combining air-conditioning with fans in the hot summer. Secondly, the influences of the two strategies of combining air-conditioning with fans （air-conditioning ＋ ceiling fan, air-conditioning ＋ floor fan） on human thermal comfort were simulated with PHOENICS. Finally, the energy-saving potential of the two strategies was quantitatively evaluated with the building energy simulation tool DeST. The results showed that the strategy of increasing the set temperature of air-conditioning in combination with fans can significantly reduce the building energy consumption and achieve an acceptable thermal comfort level. The strategy of combining air-conditioning with floor fan can save up to 53.7% of energy consumption （60% RH）, compared with the case of only using air-conditioning.

关 键 词：空调 电风扇 热舒适 节能 实测 数值模拟 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]