| 低熔点熔盐蓄热罐内温度分布与散热损失实验 |
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| 引用本文： | 崔武军,吴玉庭,熊亚选,刘闪威,孟强,马重芳.低熔点熔盐蓄热罐内温度分布与散热损失实验[J].化工学报,2014,65(Z1):162-167. |
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| 作者姓名： | 崔武军 吴玉庭 熊亚选 刘闪威 孟强 马重芳 |
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| 作者单位： | 1. 北京工业大学传热强化与过程节能教育部重点实验室及传热与能源利用北京市重点实验室, 北京 100124;
2. 北京建筑大学供热、供燃气、通风及空调工程北京市重点实验室, 北京 100044 |
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| 基金项目： | 国家自然科学基金项目（51206004）；国家重点基础研究发展计划项目（2010CB227103）。 |
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| 摘 要： | 为了研究熔盐蓄热罐内的温度分布变化与散热规律，采用课题组搭建的槽式聚光熔盐集热、传热与蓄热实验台中的熔盐罐作为实验装置，通过加热、内循环及冷却等实验，得到了罐体在各运行状态下的温度分布数据，并分析拟合得到了自然冷却降温阶段熔盐罐散热功率随时间和温度的变化曲线。实验结果表明：加热时，加热器下部熔融盐出现明显的温度分层现象。混合均匀后的冷却降温过程，熔融盐基本不出现温度分层现象。
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| 关 键 词： | 熔盐 蓄热罐 温度分层 热损失 太阳能热发电 |
| 收稿时间： | 2014-01-26 |
| 修稿时间： | 2014-02-06 |
Temperature distribution and heat loss experiments of low melting point molten salt heat storage tank |
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| CUI Wujun,WU Yuting,XIONG Yaxuan,LIU Shanwei,MENG Qiang,MA Chongfang.Temperature distribution and heat loss experiments of low melting point molten salt heat storage tank[J].Journal of Chemical Industry and Engineering(China),2014,65(Z1):162-167. |
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| Authors: | CUI Wujun WU Yuting XIONG Yaxuan LIU Shanwei MENG Qiang MA Chongfang |
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| Affiliation: | 1. Key Laboratory of Enhanced Heat Transfer and Energy Conservation, Ministry of Education of China, Key Laboratory of Heat Transfer and Energy Conversion of Beijing Municipality, Beijing University of Technology, Beijing 100124, China;
2. Key Laboratory of HVAC, Beijing University of Civil Engineering and Architecture, Beijing 100044, China |
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| Abstract: | In order to study the temperature distribution and heat loss mechanism of molten salt heat storage tank, experiments of heating, internal cycle and natural cooling were conducted by using the molten salt storage tank in the solar trough heat collecting and transfer experimental system with low melting point molten salt developed by the laboratory. Molten salt temperature distributions in the heating and cooling process were obtained and the curves of heat loss with time and temperature were correlated. The results indicated that in heating process, obvious temperature stratification were observed in the molten salts tank below heater, but for natural cooling, no obvious temperature stratification were observed. |
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| Keywords: | molten salt heat storage tank temperature stratification heat loss solar thermal power generation |
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