低熔点熔盐蓄热罐内温度分布与散热损失实验

doi:10.3969/j.issn.0438-1157.2014.z1.026

化工学报 ›› 2014, Vol. 65 ›› Issue (S1): 162-167.DOI: 10.3969/j.issn.0438-1157.2014.z1.026

低熔点熔盐蓄热罐内温度分布与散热损失实验

崔武军¹, 吴玉庭¹, 熊亚选², 刘闪威¹, 孟强¹, 马重芳¹

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

收稿日期:2014-01-26 修回日期:2014-02-06 出版日期:2014-05-30 发布日期:2014-05-30
通讯作者: 熊亚选
基金资助:
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）。

Temperature distribution and heat loss experiments of low melting point molten salt heat storage tank

CUI Wujun¹, WU Yuting¹, XIONG Yaxuan², LIU Shanwei¹, MENG Qiang¹, MA Chongfang¹

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

Received:2014-01-26 Revised:2014-02-06 Online:2014-05-30 Published:2014-05-30
Supported by:
supported by the National Natural Science Foundation of China(51206004) and the National Basic Research Program of China(2010CB227103).

摘要/Abstract

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。

关键词: 熔盐, 蓄热罐, 温度分层, 热损失, 太阳能热发电

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.

Key words: molten salt, heat storage tank, temperature stratification, heat loss, solar thermal power generation

中图分类号:

TK513.5

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(S1): 162-167.

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]. CIESC Journal, 2014, 65(S1): 162-167.

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低熔点熔盐蓄热罐内温度分布与散热损失实验

Temperature distribution and heat loss experiments of low melting point molten salt heat storage tank

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