| 绝热毛细管性能模拟的平均参数模型 |
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| 引用本文： | 张春路,丁国良,李灏. 绝热毛细管性能模拟的平均参数模型[J]. 上海交通大学学报, 1999, 33(8): 934-938 |
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| 作者姓名： | 张春路 丁国良 李灏 |
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| 作者单位： | 上海交通大学,动力与能源工程学院,上海,200030 |
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| 基金项目： | 国家教委留学回国人员基金,上海交通大学科技发展基金 |
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| 摘 要： | 根据分区集中和参数平均的思想，建立了一种简单、精度和通用性良好的绝热毛细管流动模型．出于系统动态仿真的需要，模型中考虑了过热流动和壅塞流动．基于Ｒ１２的分布参数模型计算结果，提出了不同流动区域内参数平均的一个关联式．该关联式对制冷剂Ｒ１３４ａ和Ｒ６００ａ也取得了与Ｒ１２相仿的效果，表明该关联式具有良好的通用性．对Ｒ１２、Ｒ１３４ａ和Ｒ６００ａ在毛细管内的流动特性进行了模拟计算．结果表明，该模型可用于制冷装置系统仿真和工程计算
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| 关 键 词： | 制冷装置；绝热毛细管；制冷剂；模型 |
New Three-Zone Model for Performance Prediction of Adiabatic Capillary Tubes |
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| ZHANG Chun-lu,DING Guo-liang,LI Hao. New Three-Zone Model for Performance Prediction of Adiabatic Capillary Tubes[J]. Journal of Shanghai Jiaotong University, 1999, 33(8): 934-938 |
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| Authors: | ZHANG Chun-lu DING Guo-liang LI Hao |
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| Abstract: | A new three zone model of adiabatic capillary tube was presented. The choked flow was taken into account in the model. The subcooled, the two phase and the superheated flow zone were modeled with the mean state parameters. An effective correlation of the mean state parameters to the inlet and outlet state parameters in different flow zone was developed based on the R12 data. Satisfactory effects were kept when the correlation was applied to other refrigerants, such as R134a and R600a. Therefore, it has good flexibility and is suitable for the system simulation of actual refrigeration appliances or engineering calculations. |
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| Keywords: | refrigeration plants adiabatic capillary tube refrigerants model |
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