预制轻质模块化辐射供暖系统运行优化研究:热阻分析与数值模拟
Operation optimization of prefabricated light modular radiant heating system:Thermal resistance analysis and numerical study
李垚 1胡汝坤 2辛力 1薛洁 1黄飞 3夏建伟 1杨肖虎2
作者信息
- 1. China Northwest Architecture Design and Research Institute Co.,Ltd.,Xi'an 710061,China
- 2. Institute of Building Environment and Sustainability Technology,School of Human Settlements and Civil Engineering,Xi'an Jiaotong University,Xi'an 710049,China
- 3. Shaanxi Yuanqing New Building Materials Co.,Ltd.,Xi'an 710054,China
- 折叠
摘要
预制轻质模块化辐射供暖系统的应用显示出良好的传热效率和节能效果.在装配式建筑中,这种新型供暖方式为综合设施的发展提供了机会.评价该系统的有效性参数是上表层的热流密度和温度.本文针对这种独特的辐射供暖系统进行了简化热阻分析计算,并对其传热机理进行了评价.热阻分析计算和数值模拟结果表明,热阻分析方法精度高,温度误差在0.44℃～-0.44℃之间,热流密度误差小于7.54%,能够满足实际工程应用的要求,为装配式辐射供暖系统的设计提供了依据.
Abstract
The utilization of prefabricated light modular radiant heating system has demonstrated significant increases in heat transfer efficiency and energy conservation capabilities.Within prefabricated building construction,this new heating method presents an opportunity for the development of comprehensive facilities.The parameters for evaluating the effectiveness of such a system are the upper surface layer's heat flux and temperature.In this paper,thermal resistance analysis calculation based on a simplified model for this unique radiant heating system analysis is presented with the heat transfer mechanism's evaluation.The results obtained from thermal resistance analysis calculation and numerical simulation indicate that the thermal resistance analysis method is highly accurate with temperature discrepancies ranging from 0.44℃to-0.44℃and a heat flux discrepancy of less than 7.54%,which can meet the requirements of practical engineering applications,suggesting a foundation for the prefabricated radiant heating system
关键词
热阻分析/简化模型/数值模拟/热流密度/温度Key words
radiant heating system/thermal resistance analysis/simplified model/numerical simulation/heat flux/temperature引用本文复制引用
基金项目
Research and Engineering Application of Key Technologies for New Building Industrialization Project of China Northwest Archi(NB-2020-JG-07)
Key Scientific and Technological Innovation Team of Shaanxi Province,China(2023-CX-TD-29)
K.C.Wong Education Foundation()
出版年
2024
NETL
NSTL
万方数据