| 摘要: |
| 分析了绿色制冷剂--液体CO2在毛细管中的流动特征,对液体CO2在外径为2.18mm、内径为1.20mm,在一定进、出口压力下,对不同长度、不同曲直程度的毛细管内的质量流量进行了实验研究.同时对制冷系统中使用了毛细管的冷藏车的保温性能进行了测试,从而获得了与冷藏车厢体冷负荷相匹配的最佳毛细管长度. |
| 关键词: 热工学 最佳毛细管长度 流动特征 冷负荷 质量流量 |
| DOI： |
| 修订日期：2003-10-03
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| 基金项目:重庆市科技攻关项目 |
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| An Experimental Study of the Length of Capillary Tube Matching Cooling Load in a Liquid Carbon Dioxide Refrigerated Lorry |
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| Abstract: |
| This paper firstly discussed the flow characteristic of liquid carbon dioxide in a capillary tube; experimental studies on the mass flux of liquid carbon dioxide in capillary tubes with internal diameter at 1.20mm, external diameter at 2.18mm,a certain pressure at the entrance and exit , and different length and different degree of bend were carried out; the refrigerated lorry's heat preservation capacity was tested, the optimal length of a capillary tube matching cooling load of the refrigerated lorry was obtained. |
| Key words: Pyrology,optimal length of a capillary tube,flow characteristic,cooling load,mass flux |
