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空调间歇运行模式下建筑内墙热响应特性研究

作者:王索1,毛伟1,李彦儒2,龙恩深3

关键字:空调,间歇,运行,模式,下,建筑,内墙,热,响应,

 
(1.中机中联工程有限公司 既有建筑研究所,重庆  400039;
2.四川农业大学 建筑与城乡规划学院,四川 成都  611830;
3.四川大学 建筑与环境学院,四川 成都  610065)
    摘要:空调间歇运行模式是夏热冬冷及夏热冬暖地区的典型运行模式,在空调间歇运行模式下,建筑内墙的热工性能对建筑能耗有较大影响。综合采用实验对比及数值计算方式对空调开机后建筑内墙(匀质墙体、饰面墙体)的热响应特性进行了研究。结果表明:在常规的空调间歇模式下,空调开机后的4~6 h内,建筑内墙主要处于蓄能状态,而非传递到邻室;在空调开机后的前4 h内,当饰面材料的导热系数及体积比热容分别小于建筑基墙时,本室侧的壁面热流可分别降低17.0%~22.3%及8.8%~14.1%。
    关键词:建筑内墙;热流;热响应特性;空调间歇运行
    中图分类号:TU111.2        文献标识码A        文章编号:1001-702X(2020)09-0007-06
 
Research on thermal response characteristics of building interior wall under intermittent operation mode of air conditioning
WANG Suo1,MAO Wei1,LI Yanru2,LONG Enshen3
(1.Comprehensive Technology Research Institute,CMCU Engineering Co. Ltd.,Chongqing 400039,China;
2.College of Architecture and Urban-Rural Planning,Sichuan Agricultural University,Chengdu 611830,China;
3.College of Architecture and Environment,Sichuan University,Chengdu 610065,China)
    Abstract:Intermittent operation mode of air conditioning is a typical operation mode in hot summer and cold winter and hot summer and warm winter areas. Under the intermittent operation mode of air conditioning, the thermal performance of building interior wall has a great impact on building energy consumption. The thermal response characteristics of building interior walls (homogeneous wall,decorated walls) after air conditioning is turned on,are studied by means of experimental comparison and numerical calculation. The results show that in the conventional intermittent mode,the interior wall of the building is mainly in the state of energy storage within 4~6 hours after the air conditioner is turned on,rather than transferring to the adjacent room;when the thermal conductivity and volume specific heat capacity of the facing material are less than the base wall,the surface heat flow of the interior wall can be reduced by 17.0%~22.3% and 8.8%~14.1% respectively within the first 4 hours after the air conditioner is turned on.
    Key words:building interior wall,heat flux,thermal response characteristics,intermittent operation mode of air conditioning