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| 新工质R134a在水平强化管外的池沸腾换热 | |
| 引用本文： | 李芳明 李沛文. 新工质R134a在水平强化管外的池沸腾换热[J]. 西安交通大学学报, 1998, 32(3): 60-63 |
| 作者姓名： | 李芳明 李沛文 |
| 作者单位： | 西安交通大学 |
| 基金项目： | 国家计委“八五”科技攻关项目,动力工程多相流国家重点实验室资助课题 |
| 摘 要： | 对新型替代工质Ｒ１３４ａ在水平强化管外的核态池沸腾换热进行了实验研究．查明了热流密度、蒸发压力和沸腾换热系数的关系，拟合了适合于本强化管的沸腾换热系数计算式．并对Ｒ２２和Ｒ１３４ａ在强化管外池沸腾换热的特性进行了对比． |
| 关 键 词： | 替代工质 沸腾换热 换热强化 |
Pool Boiling of R134a outside a Horizontal Enhanced Tube |
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| Li Fangming Li Peiwen Li Wu Tao Wenquan. Pool Boiling of R134a outside a Horizontal Enhanced Tube[J]. Journal of Xi'an Jiaotong University, 1998, 32(3): 60-63 | |
| Authors: | Li Fangming Li Peiwen Li Wu Tao Wenquan |
| Abstract: | Pool boiling outside a horizontal enhanced tube with the new refrigerant R134a was experimentally investigated. The correlation among the heat transfer coefficient, heat flux and saturation pressure was obtained by using the multi variables linear least square method. The enhancement cha racteristics of heat transfer coefficient of the enhanced tube against smooth tube were also analyzed. The results showed that for the enhanced tube studied the boiling heat transfer coefficients of R134a is lower than that of R22. |
| Keywords: | substitute refrigerant boiling heat transfer heat transfer enhancement |
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