| 低温热水辐射地板传热平面肋片模型的改进 |
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| 引用本文： | 刘艳峰,刘加平.低温热水辐射地板传热平面肋片模型的改进[J].哈尔滨建筑大学学报,2003(10). |
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| 作者姓名： | 刘艳峰 刘加平 |
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| 作者单位： | 西安建筑科技大学环境与市政工程学院，西安建筑科技大学环境与市政工程学院 陕西 西安710055，陕西 西安710055 |
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| 基金项目： | 国家杰出青年科学基金(50125821) |
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| 摘 要： | 采用肋基温度系数法对辐射地板传热的平面肋片模型进行了修正。利用有限元法对二维低温热水辐射地板导热微分方程进行了数值模拟计算。将原有平面肋片模型计算结果和改进后的模型计算结果与数值模拟结果比较,表明改进后的平面肋片模型计算结果比原有模型更接近数值模拟结果,与现有的地方规范中的数据基本吻合。
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| 关 键 词： | 地板辐射供暖 地板散热量 平面肋片模型 |
Corrected composite-fin model of heat conduction in embed-pipe heated floor |
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| LIU Yan-feng,LIU Jia-ping,College of Envir. and Muni. Engi.,Xi'an University of Architecture & Technology,Xi'an ,China,E-mail:lyfxjd@.com.Corrected composite-fin model of heat conduction in embed-pipe heated floor[J].Journal of Harbin University of Civil Engineering and Architecture,2003(10). |
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| Authors: | LIU Yan-feng LIU Jia-ping College of Envir and Muni Engi Xi'an University of Architecture & Technology Xi'an China E-mail:lyfxjd@com |
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| Affiliation: | LIU Yan-feng,LIU Jia-ping,College of Envir. and Muni. Engi.,Xi'an University of Architecture & Technology,Xi'an 710055,China,E-mail:lyfxjd@163.com |
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| Abstract: | The temperature of composite-fin base and the temperature of floor surface above embed pipe in composite-fin model of embed-pipe heated floor arc lower than the temperatures calculated by one dimension conduction. The existing Composite-fin model was corrected by using the correction coefficient of temperature for composite-fin base. The new model has higher accuracy than existing model in calculating heat gain of heated floor. The results obtained with new model and existing model are compared with the results of numeri- cal simulation. The results obtained with the new model tally with the data of active codes as well |
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| Keywords: | embed-pipe heated floor heat gain from floor Composite-fin model |
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