摘要
地板辐射供暖系统应用数量在我国南方地区日益增长,但人们对如何设定适宜的地板温度范围存在一定的疑惑.本文通过标准解读、文献调研和实地人体实验,对舒适性地板温度范围进行了研究.文献总结表明,东亚地区人群偏好的地板温度普遍高于现有标准推荐值(约25~29℃).在重庆某住宅中,招募了45名当地受试者,对25~35℃的6个不同地板温度进行了问卷投票人体实验研究.结果表明,夏热冬冷地区人们偏好较高的地板温度.长期停留时,中性地板温度约为28℃,但热舒适性地板温度约为29~32℃,期望的地板温度在32℃左右;而短暂停留时,期望的地板温度在33~35℃.因此,针对夏热冬冷地区的分散式地板辐射供暖系统,建议将经常停留和短暂停留区域的地板设计温度上限值分别提高到32和34℃.
The use of floor radiant heating systems is increasing every day in Southern China.However,designers and users are constantly trying to find how to choose a suitable floor temperature range based on human comfort.This study summarized and analyzed the comfortable floor temperature range of radiant floor heating systems from three aspects:Standard interpretation,literature research,and human experiments.The thermal comfort standards,including GB/T 50785-2012,ASHRAE 55-2020,ISO 7730:2005,ISO/TS 13732-2-2001,and ISO 13732-1:2006,were reviewed.An acceptable range of 19-29℃(PD<10%)was recommended as the optimal floor temperature in these standards.In addition,building design codes EN 1264-2:2008 and EN 15377-1:2008,GB 50019-2015,GB 50736-2012,and JGJ 142-2012 were reviewed.The acceptable radiation floor temperature range for European building design codes was also specified as 19-29℃,whereas for Chinese design codes range of 24(or 25)-26(or 27)℃ with an upper threshold of 28(or 29)℃ was recommended.However,a literature review of experiments and field studies showed that East Asia preferred higher floor temperatures than the recommended ranges in these standards,for example,27-33℃ in Korea and 26-30℃ in Japan according to climate chamber studies,and could be as high as 33.6-38.8℃ in a field study.Human experiments were conducted in a typical room with a radiant floor heating system located in a residential building in Chongqing.A total of 45 subjects were recruited to experience the heating system with six different floor temperatures:25,27,29,31,33,and 35℃.The subjects were seated with bare feet to evaluate the perceptions related to floor temperatures as follows:Thermal sensation vote(TSV)of feet,thermal expectation of floor temperature,and thermal comfort of feet.The results of the experiments also revealed that the local people in the hot summer and cold winter(HSCW)climate zone of China preferred higher floor temperatures than that recommended in standards or neutral conditions.For long-term occupa
作者
吴语欣
刘红
李百战
卢星宇
陈露
Kosonen Risto
Yuxin Wu;Hong Liu;Baizhan Li;Xingyu Lu;Lu Chen;Risto Kosonen(School of Civil Engineering and Architecture,Zhejiang Sci-Tech University,Hangzhou 310018,China;Joint International Research Laboratory of Green Buildings and Built Environments(Ministry of Education),Chongqing University,Chongqing 400045,China;Department of Mechanical Engineering,Aalto University,Espoo 02150,Finland)
出处
《科学通报》
EI
CAS
CSCD
北大核心
2021年第19期2476-2485,共10页
Chinese Science Bulletin
基金
国家重点研发计划(2019YFE0100300-05,2016YFC0700300)
高等学校学科创新引智计划(B13041)资助。
关键词
地板辐射供暖
冬季
地板温度
热舒适
夏热冬冷地区
radiant floor heating
winter
floor temperature
thermal comfort
hot summer and cold winter climate zone
