装配式地面辐射供暖系统散热特性研究  

Study on the Heat Dissipation Characteristics of Prefabricated Radiant Floor Heating Systems

作　　者：徐建一 吴小舟 唐明武 赵明明 冯爱荣 陈亮 王军[4] 刘东[5] 王登甲[6] XU Jianyi;WU Xiaozhou;TANG Mingwu;ZHAO Mingming;FENG Airong;CHEN Liang;WANG Jun;LIU Dong;WANG Dengjia(School of Civil Engineering,Dalian University of Technology,Dalian 116024,Liaoning,China;China Northwest Architecture Design and Research Institute Co.,Ltd.,Xi'an 710016,China;Jianke EET Co.,Ltd.,Beijing 100013,China;College of Architecture&Environment,Sichuan University,Chengdu 610065,Sichuan,China;School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mian Yang 621000,Sichuan,China;School of Building Services Science and Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China)

机构地区：[1]大连理工大学土木工程学院,辽宁大连116024 [2]中国建筑西北设计研究院有限公司,西安710018 [3]建科环能科技有限公司,北京100013 [4]四川大学建筑与环境学院,四川成都610065 [5]西南科技大学土木工程与建筑学院,四川绵阳621000 [6]西安建筑科技大学建筑设备科学与工程学院,陕西西安710055

出　　处：《建筑科学》2024年第6期166-174,共9页Building Science

基　　金：中国建筑西北设计研究院有效公司科研项目(NB-2022-NT-18);省级大学生创新创业计划项目(20221014110044)。

摘　　要：本文通过分析装配式地面辐射供暖系统的结构与传热过程,建立了散热计算数值模型,并与实验测试结果对比验证了数值计算结果的可靠性。通过数值模型计算分析了在室内空气计算温度为18℃、供回水平均温度为30~50℃及管间距为150~300 mm条件下不同面层装配式地暖的散热量及热损失量等散热特性。结果表明随着供回水平均温度的增大,装配式地暖的散热量和热损失量呈线性增大,而随着管间距的增大,装配式地暖的散热量和热损失量呈非线性减小。此外,供回水平均温度对不同面层装配式地暖的热损失率影响非常小,而管间距对不同面层装配式地暖的热损失率影响比较大。论文研究结果为装配式地面辐射供暖系统的结构优化及设计选型提供了依据。This paper established a numerical model for heat dissipation calculation by analyzing the structure and heat transfer process of the assembled floor radiant heating system,and verified the reliability of the numerical calculation results by comparing with the experimental test results.Through the numerical model calculation,the heat dissipation characteristics such as heat dissipation and heat loss of assembled floor heating with different surfaces under the conditions of the indoor air calculation temperature of 18 ℃,the average supply and return water temperatures of 30~50 ℃,and the pipe spacing of 150~300 mm were analyzed.The results showed that the heat dissipation and heat loss of the assembled underfloor heating increased linearly with the rising of the average supply and return water temperatures,while the heat dissipation and heat loss of the assembled underfloor heating decreased non-linearly with the increase of the pipe spacing.In addition,the average supply and return water temperatures had a minor effect on the rate of heat loss for assembled underfloor heating with different surfaces,whereas the tube spacing had a relatively significant effect on the rate of heat loss for assembled underfloor heating with different surfaces.The results of the thesis provide a basis for the structural optimization and design selection of the assembled radiant floor heating system.

关 键 词：装配式地面辐射供暖系统 数值模拟 散热特性 热损失率 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]