摘要
本文通过CFD模拟,研究风扇对上海村镇居住建筑室内热环境的改善效果与节能潜力、居民对夏季自然通风与风扇结合的接受度及适用范围。研究结果表明：夏季利用风扇可以提高上海村镇居住建筑室内风速、降低室内温升并改善室内热场分布,结合自然通风可在一定程度上代替空调进行降温。当室外温度超过29.8℃时,风扇和自然通风将无法保证室内人员舒适度,建议开启空调进行降温;风扇在空调开闭情况下较单用空调制冷可分别节能13.5%～14.5%和93%～94%。
With CFD simulation,the research on improvement of the indoor internal environment effect and energy saving potential of fan in Shanghai town buildings,residents acceptance and applicable scope on the combination of natural ventilation and fan in summer. The study indicates that： fan used in summer can improve the indoor wind speed in Shanghai town buildings,reduce indoor temperature rise and improve indoor thermal field distribution,which can replace the air conditioning for cooling in a certain extent combining with natural ventilation. If the outdoor air temperature is over 29. 8 ℃,it suggests turning on the air conditioning to cool for that fan and natural ventilation will not be able to ensure the indoor comfort. With the air conditioner on and off,the utilization of fan can saving about 13. 5% ～ 14. 5% and 93% ～ 94% of energy compared with the cooling by air conditioner only,respectively.
出处
《建筑科学》
北大核心
2014年第10期126-130,共5页
Building Science
基金
"十二五"国家科技支持计划课题"村镇建筑节能关键技术集成与示范"(2011BAJ08B10)
上海市城乡建设和交通委员会科研项目"上海地区中心村居住建筑节能关键技术集成研究"(2011-30-006)
关键词
风扇降温
自然通风
室内环境
热舒适度
村镇建筑
fan cooling
natural ventilation
indoor environment
thermal comfort
town building
