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辐射吊顶单元供冷量的理论计算模型及实验验证
于国清, 贾文哲, 赵彦杰
0
(上海理工大学环境与建筑学院)
摘要:
根据辐射吊顶单元与周围环境的换热原理,在对毛细管结构合理简化的基础上,建立了毛细管型辐射吊顶单元供冷量的理论计算模型,同时建立了两块辐射吊顶串联时的供冷量计算模型。搭建了实验台,测试在室温25℃,供水温度15~19℃时,单块辐射吊顶单元以及两块辐射吊顶单元串联时的供冷量。测试数据与计算结果对比表明:单块辐射吊顶单元以及两块串联时的理论计算供冷量吻合较好,验证了理论计算模型的正确性。该计算模型可用来预测特定工况下辐射吊顶单元的供冷量。
关键词:  辐射吊顶单元  实验测试  供冷量  理论计算模型
DOI:10.3969/j.issn.0253-4339.2014.02.115
    
基金项目:
Theoretical Calculation Model and Experimental Validation of the Radiant Ceiling Unit Cooling Capacity
Yu Guoqing, Jia Wenzhe, Zhao Yanjie
(School of Environment and Architecture, University of Shanghai for Science & Technology)
Abstract:
According to the heat transfer between radiant ceiling unit and surrounding environment, based on the reasonable simplification of configuration of radiant ceilings, set up theoretical calculation models of single piece of the capillary cooling radiant ceiling unit and two units in series combination to calculate their cooling capacities. Then tests their cooling capacities under the condition of 25℃ room temperature, 15~19℃ supply water temperature. The comparison between measured data and calculation results show that theoretically calculated cooling capacity of single unit and of two series-connected units approach the experimental testing data, which shows that the theoretical calculation models are reasonable and feasible and can be used to predict the cooling capacities under real conditions.
Key words:  radiant ceiling unit  experimental test  cooling capacity  theoretical calculation model

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