摘要
以西安地区既有办公建筑为研究对象,主要研究蓄热和夜间通风对建筑室内热环境的影响。由7月22日至8月9日的实验结果可知,采用夜间通风措施与未采用通风措施房间的平均室内温度差值为1℃,最大差值超过2℃,采用蓄热措施后其室内温度可在此基础上进一步降低约3℃。通过分析室内温度变化频率可知,大部分时间实验房室内温度超过28℃;采用蓄热措施后,其中仅有21%的时间室内温度高于28℃;而采用蓄热体和夜间通风综合措施时,仅有4%的时间其室内温度超过28℃。因此,如果办公建筑室内热舒适上限温度为28℃,那么有96%的时间可以在不使用空调设备的情况下达到室内热舒适状态。
Taking the existing office building in Xi＇ an as the research object, the effect of thermal mass and night ventilation on the thermal performance of the office building was investigated. The experimental work was conducted during the peak summer months of July and August. The average indoor temperature difference between with and without night ventilation was about 1 ℃. The indoor temperature difference exceeded 2 ℃ only occasionally. Thermal mass could help lowering the indoor temperature further, by as much as 3 ℃. Examining the occurrence frequency of the indoor temperature revealed that the indoor temperature was 28 ℃ or higher in most time. With thermal mass, the indoor temperature was above 28 ℃ in 21% of the time. With both thermal mass and night ventilation, only 4% of the time did the indoor temperature exceed 28 ℃. If 28℃ is assumed to be the upper limit for thermal comfort in an office environment, then it is possible to achieve thermal comfort for 96% of the time without the need for mechanical cooling.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第6期1337-1343,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金创新群体项目(50921005)
陕西省重点科技创新团队计划(2012 KCT-11)
关键词
蓄热体
通风
实验性工作
能耗
办公建筑
thermal mass
ventilation
experimental work
energy use
office building
