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夏热冬冷地区非人工冷热源建筑气流对人体热舒适的影响

发表时间:2014-01-31  浏览量:1341  下载量:431
全部作者: 刘红,杨洁,谭青
作者单位: 重庆大学城市建设与环境工程学院;中国市政工程中南设计研究总院有限公司;重庆大学三峡库区生态环境教育部重点实验室
摘 要: 目的:验证夏热冬冷地区非人工冷热源热湿环境体感温度上限为30℃. 方法:实验于2011年7月至9月在自然通风环境的教学楼进行测试调研,共得有效问卷1 007份。调研历经3个月,其中空气温度范围覆盖24~38℃,调研采用主观问卷和环境参数同时记录的方法进行数据收集。结果:在非人工冷热源热湿环境中,人体的热感觉状态严重影响对气流的感知,且得出不同体感温度下对应调节措施有所不同。结论:当体感温度低于28℃时,可以通过自然通风调节室内环境;28~30℃时,需开启机械设备调节室内环境;体感温度高于30℃时,则需开启制冷设备调节室内环境。即非人工冷热源热湿环境中气流可调节体感温度上限为30℃.
关 键 词: 通风与空调工程;热舒适;气流运动;可接受率;热感觉
Title: Effect of air movement in free-running buildings on the thermal comfort in hot summer and cold winter area
Author: LIU Hong, YANG Jie, TAN Qing
Organization: School of Urban Construction and Environmental Engineering, Chongqing University; Central and Southern China Municipal Engineering Design & Research Institute Co., Ltd.; Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education
Abstract: Objective: To verify the high limit operative temperature of thermal environment in free-running buildings which the temperature in hot summer and cold winter area can reach to 30℃. Methods: In this paper, the field surveys were conducted during the summer from July to September in 2011, in the classroom of Chongqing university which have no air-conditioning. During the survey , we collected effective questionnaire 1 007 copies, the air temperature range covering from 24℃ to 38℃. Results: We found that in free-running buildings, the thermal sensation of people seriously influenced the airflow sensing. We also found that people under different operating temperature would choose different adjustment measures to correspond the environment. Conclusion: Main results indicated that people in civil buildings can satisfy through the natural ventilation when the operative temperature was less than 28℃. During 28℃ to 30℃, it needed to open mechanical equipment to adjust the indoor environment. When the operative temperature is above 30℃, opening the air-conditioning can regulate the indoor environment. Therefore, the high limit operative temperature of thermal environment in free-running buildings is 30℃.
Key words: ventilation and air conditioning engineering; thermal comfort; air movement; acceptability limits; thermal sensation
发表期数: 2014年1月第2期
引用格式: 刘红,杨洁,谭青. 夏热冬冷地区非人工冷热源建筑气流对人体热舒适的影响[J]. 中国科技论文在线精品论文,2014,7(2):157-164.
 
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