| 微胶囊相变悬浮液在空调系统中的应用前景 |
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| 引用本文： | 赵兵全,赵镇南. 微胶囊相变悬浮液在空调系统中的应用前景[J]. 节能技术, 2006, 24(4): 294-296 |
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| 作者姓名： | 赵兵全 赵镇南 |
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| 作者单位： | 天津大学热能工程系,天津,300072;天津大学热能工程系,天津,300072 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 介绍了一种功能性热流体—微胶囊相变悬浮液,它的浓度为15%时,载冷能力是水的两倍多;处于湍流时,表现出非牛顿流体的特性,流动阻力小于水;浓度为20%时,层流对流换热的修正努塞尔数Nuc是单相流体的2~3倍,传热性能远优于单相流体。因此,微胶囊相变悬浮液应用于空调系统可大幅度提高换热器的传热性能和空调系统的运行效率,达到节能的效果。
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| 关 键 词： | 微胶囊相变悬浮液 载冷能力 摩擦阻力系数 强化传热 |
| 文章编号： | 1002-6339(2006)04-0294-03 |
| 收稿时间： | 2006-05-24 |
| 修稿时间： | 2006-06-30 |
Application Prospect of the Microencapsulated Phase Change Material Suspension in Air- conditioning Systems |
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| ZHAO Bing-quan,ZHAO Zhen-nan. Application Prospect of the Microencapsulated Phase Change Material Suspension in Air- conditioning Systems[J]. Energy Conservation Technology, 2006, 24(4): 294-296 |
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| Authors: | ZHAO Bing-quan ZHAO Zhen-nan |
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| Affiliation: | Dept. of Thermal Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | A style of functionally thermal fluid-microencapsulated phase change material suspension(MPCMS) is introduced in this paper. Its ability of carrying cold at the concentration of 15% is more than twice as large as water.In the turbulent flow region,the MPCMS performs the behavior of non-Newtonian fluid,and its drag is smaller than water.The corrected Nu_c of the 20% MPCMS is 1 to 2 times larger than that of the single phase fluid in the laminar flow region,so the heat transfer characteristic of the MPCMS excels that of single phase fluid.It can be concluded that the application of MPCMS in air-conditioning systems will enhance the heat transfer of heat transferexchangers and improve the efficiency of air-conditioning systems greatly. |
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| Keywords: | microencapsulated phase change material suspension ability of cold carrier friction factor heat transfer enhancement |
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