| 跨临界CO2汽车空调微通道气体冷却器的设计开发 |
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| 引用本文： | 邓建强,姜培学,石润富,李建明. 跨临界CO2汽车空调微通道气体冷却器的设计开发[J]. 制冷学报, 2005, 26(4): 51-55 |
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| 作者姓名： | 邓建强 姜培学 石润富 李建明 |
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| 作者单位： | 1. 清华大学热能动力工程与热科学重点实验室,北京,100084
2. 苏州三川换热器有限公司,苏州,215101 |
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| 摘 要： | 基于平均温差法,调用REFPROP7.0确定超临界CO2剧烈变化的热物性,采用迭代方法对紧凑式微通道气体冷却器进行设计.选用近期发表的两个超临界CO2管内换热计算关联式进行设计计算,结果表明二者对气体冷却器的设计影响不大;CO2侧压降计算表明压降很小.文章阐述了有关试制工艺.
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| 关 键 词： | 热工学 气体冷却器 设计 微通道 |
| 修稿时间： | 2004-11-24 |
Development of Microchannel Gas Cooler for Trans-critical CO2 Automotive Air Conditioning |
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| Deng Jianqiang,Jiang Peixue,Shi Runfu,Li Jianming. Development of Microchannel Gas Cooler for Trans-critical CO2 Automotive Air Conditioning[J]. Journal of Refrigeration, 2005, 26(4): 51-55 |
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| Authors: | Deng Jianqiang Jiang Peixue Shi Runfu Li Jianming |
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| Abstract: | A modified design calculation program was developed for gas coolers using the mean temperature difference method.Since the variable thermophysical properties of supercritical CO_2 significantly influence the convection heat transfer in tubes,the thermodynamic and transport properties of supercritical CO_2 used in the calculations were determined with REFPROP7.0.The two most recent published correlations for in-tube cooling were also used in the program.The results show no notable difference between the two correlations.The in-tube pressure drop predicted is also quite small. |
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| Keywords: | Pyrology Gas cooler Design Microchannel |
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