八水氢氧化钡相变材料的强化传热实验

盛强; 邢玉明; 王泽

八水氢氧化钡相变材料的强化传热实验

盛强^1,2,
邢玉明¹,
王泽¹

1.
北京航空航天大学航空科学与工程学院, 北京100191
2.
黑龙江大学建筑工程学院, 哈尔滨150080

基金项目: 国家自然科学基金(50876004);黑龙江大学青年科学基金(QL201042)

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出版历程
- 收稿日期: 2012-11-19
- 刊出日期: 2013-09-28

Experiment on heat transfer enhancement of barium hydroxide octahydrate phase change material

1.
School of Aeronautics Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2.
School of Civil Engineering, Heilongjiang University, Harbin 150080, China

摘要

摘要: 采用差示扫描量热法(DSC)对八水氢氧化钡相变材料进行热物性分析,总结出一种针对结晶水合盐相变温度与潜热准确可靠的测量方法.通过扫描电子显微镜(SEM)获得相变材料与金属容器截面腐蚀情况的图像,证明八水氢氧化钡与紫铜有优良的相容性.分别对含/未含泡沫铜的固液相变蓄热体进行实验研究,结果表明:泡沫铜填充使相变材料在固相区内熔化时间减少了26%,增强了相变材料的传热效果,而且将八水氢氧化钡过冷度降低了50%.
- 八水氢氧化钡 /
- 示差扫描量热法 /
- 扫描电子显微镜 /
- 泡沫铜 /
- 强化传热
Abstract: The thermal properties of barium hydroxide octahydrate(Ba(OH)₂·8H₂O) were measured by differential scanning calorimetry(DSC).The DSC measurement method can be used for phase change temperature and latent heat of salt hydrates.The cross section image from scanning electron microscope(SEM) indicates that Ba(OH)₂·8H₂O and copper present excellent compatibility.Experiments were conducted to investigate heat transfer characteristics of Ba(OH)₂·8H₂O with/without copper foams.The results show that melting time of the phase change material(PCM) is shortened by 26% in PCM solid zone and the heat transfer rate of the PCM is enhanced.The supercooling degree of Ba(OH)₂·8H₂O is reduced by 50%.
- barium hydroxide octahydrate /
- DSC /
- SEM /
- copper foams /
- heat transfer enhancement

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参考文献(16)

[1]	张寅平,胡汉平,孔祥冬,等.相变贮能:理论和应用[M].合肥:中国科学技术大学出版社,1996.
[2]	Zalba B,Marín J M,Cabeza L F,et al.Review on thermal energy storage with phase change:materials,heat transfer analysis and applications[J].Applied Thermal Engineering,2003,23(3):251-283.
[3]	刘栋,徐云龙.成核剂对CaCl₂·6H₂O相变材料储热性能的影响[J].太阳能学报,2007,28(7):732-738. LIU Dong,XU Yunlong.Thermoproperties research on nucleators-CaCl₂·6H₂O composites under distinctive systems[J].Acta Energiae Solaris Sinica,2007,28(7):732-738.(in Chinese)
[4]	李金田,茅靳丰,李伟华,等.三水醋酸钠的过冷机理与实验研究[J].制冷学报,2009,30(5):32-35. LI Jintian,MAO Jinfeng,LI Weihua,et al.Supercooling mechanism and experimental study of sodium acetate trihydrate[J].Journal of Refrigeration,2009,30(5):32-35.(in Chinese)
[5]	沈卫东,曾丹苓.车用潜热贮热器相变贮热材料Ba(OH)₂·8H₂O 的成核[J].工程热物理学报,1996,17(Sup.1):5-8. SHEN Weidong,ZENG Danling.The nucleation of PCM Ba(OH)₂·8H₂O of latent heat accumulator for vehicles[J].Journal of Engineering Thermophysics,1996,17(Sup.1):5-8.(in Chinese)
[6]	Lane G A.Phase change materials for energy storage nucleation to prevent supercooling[J].Solar Energy Materials and Solar Cells,1992,27(2):135-160.
[7]	Farid M M,Khalaf A N.Performance of direct contact latent heat storage units with two hydrated salts[J].Solar Energy,1994,52(2):179-189.
[8]	Frusteri F,Leonardi V,Vasta S,et al.Thermal conductivity measurement of a PCM based storage system containing carbon fibers[J].Applied Thermal Engineering,2005,25:1623-1633.
[9]	Zhou D,Zhao C Y.Experimental investigations on heat transfer in phase change materials (PCMs) embedded in porous materials[J].Applied Thermal Engineering,2011,31(5):970-977.
[10]	Naumann R,Emons H H.Results of thermal analysis for investigation of salt hydrates as latent heat-storage materials[J].Journal of Thermal Analysis,1989,35(3):1009-1031.
[11]	Tyagi V V,Buddhi D.Thermal cycle testing of calcium chloride hexahydrate as a possible PCM for latent heat storage[J].Solar Energy Materials and Solar Cells,2008,92(8):891-899.
[12]	王青宁.八水氢氧化钡制一水氢氧化钡的工艺研究[J].盐湖研究,1999,7(2):72-75. WANG Qingning.The preparation of barium hydroxide monohydrate by dehydration of barium hydroxide octahydrate[J].Journal of Salt Lake Research,1999,7(2):72-75.(in Chinese)
[13]	李晶.相变蓄热材料及其相变特性的研究.北京:北京工业大学,2005. LI Jing.Study on phase change heat storage material and phase change properties.Beijing:Beijing University of Technology,2005.(in Chinese)
[14]	美国金属学会.金属手册:第2卷[M].北京:机械工业出版社,1994.
[15]	ZHANG Zhengguo,FANG Xiaoming.Study on paraffin expanded graphite composite phase change thermal energy storage material[J].Energy Conversion and Management,2006,47(3):303-310.
[16]	范颖,万金庆,成帅.几种成核剂对硫酸钠溶液过冷度的影响[J].低温工程,2009(5):60-64. FAN Ying,WAN Jinqing,CHENG Shuai.Influence of some nucleating agent on sodium sulfate solution under-cooling[J].Cryogenics,2009(5):60-64.(in Chinese)