针对复合墙体主动保温隔热过程建立动态传热模型,采用全局敏感性方法分析3类12个变量对其综合能量特性的协同影响。结果表明：在热屏障附加作用下,室外气象因子对墙体综合能量特性影响大幅下降,复合墙体适用于所研究的4个气候区/城市;冷/热源温度和房间设定温度影响最为显著,二者在内墙面耗热/冷量、注热/冷量等指标中始终呈现相互制约的关系;低品位能源系统运行时长和墙体导热系数影响次之,前者推荐值不低于冬季6 h/d和夏季8 h/d,后者推荐值为0.50~2.75 W/（m·℃）;嵌管间距对墙体内部热堆积影响较大,间距为100~250 mm有利于形成连续热屏障。
Abstract
A dynamic heat transfer model is established and the synergistic effects of 12 variables of 3 categories on the thermal performances are analyzed through global sensitivity analysis method. Results showed that the influence of meteorological factors was greatly reduced, and the composite wall was applicable for the studied four climatic regions. Besides, the influences of the heat source temperature and room set point were most significant, and the two variables showed a mutual constraint relationship when it comes to the indexes of interior thermal load and heat/cold injection amount. Moreover, the influences of charging duration and thermal conductivity of the pipe-embedded layer were followed closely. The recommended value of the former was not less than 6 h/day in winter and 8 h/day in summer, while the recommended value of the latter was 0.50-2.75 W/（m·℃）. In addition, the pipe spacing had a great influence on the thermal accumulation inside the wall, and the value of 100-250 mm was conducive to forming a continuous thermal barrier.
关键词
太阳能建筑 /
热工性能 /
敏感性分析 /
数值模拟 /
低品位能源
Key words
solar buildings /
thermal properties /
sensitivity analysis /
numerical simulation /
low-grade energy
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] 赵运超, 丁云飞, 周孝清, 等. 瞬态气象条件下变热容相变墙体隔热研究[J]. 太阳能学报, 2021, 42(10):146-152.
ZHAO Y C, DING Y F, ZHOU X Q, et al.Study on heat insulation of phase change wall with variable heat capacity under transient meteorological conditions[J]. Acta energiae solaris sinica, 2021, 42(10): 146-152.
[2] 周勇, 刘艳峰, 王登甲, 等. 中国不同气候区日总太阳辐射计算模型适用性分析及通用计算模型优化[J]. 太阳能学报, 2022, 43(9): 1-7.
ZHOU Y, LIU Y F, WANG D J, et al.Suitability of models for daily global solar radiation estimation in different climatic zones of China and optimization of general models[J]. Acta energiae eolaris sinica, 2022, 43(9): 1-7.
[3] 余才锐, 沈冬梅, 何伟, 等. 基于辐射制冷和微槽道热管的相变墙体实验研究[J]. 太阳能学报, 2020, 41(4): 123-128.
YU C R, SHENG D M, HE W, et al.Experimental research on phase change wall based on sky radiative cooling and micro-channel heat pipe[J]. Acta energiae solaris sinica, 2020, 41(4): 123-128.
[4] SIMKO M, KRAJCIK M, SIKULA O, et al.Insulation panels for active control of heat transfer in walls operated as space heating or as a thermal barrier: numerical simulations and experiments[J]. Energy and buildings, 2018, 158: 135-146.
[5] ZHOU L Q, LI C J.Study on thermal and energy-saving performances of pipe-embedded wall utilizing low-grade energy[J]. Applied thermal engineering, 2020, 176: 115477.
[6] KRZACZEK M, FLORCZUK J, TEJCHMAN J, et al.Improved energy management technique in pipe-embedded wall heating/cooling system in residential buildings[J]. Applied energy, 2019, 254: 113711.
[7] NIU F X, YU Y B.Location and optimization analysis of capillary tube network embedded in active tuning building wall[J]. Energy, 2016, 97: 36-45.
[8] SHEN C, LI X T.Energy saving potential of pipe-embedded building envelope utilizing low-temperature hot water in the heating season[J]. Energy and buildings, 2017, 138: 318-331.
[9] BLANCO J, ARRIAGA P, ROJI E, et al.Investigating the thermal behavior of double-skin perforated sheet facades: part A: model characterization and validation procedure[J]. Building and environment, 2014, 82: 50-62.
基金
国家重点研发计划（2021YFE0200100）; 安徽省自然科学基金青年项目（2208085QE163; 2108085QE241）; 安徽省国土空间规划与生态研究院开放课题（GTY2021202）
PDF(2054 KB)
