化工学报 ›› 2012, Vol. 63 ›› Issue (3): 806-811.DOI: 10.3969/j.issn.0438-1157.2012.03.019

• 流体力学与传递现象 • 上一篇    下一篇

基于两相流流型的平行流冷凝器整体仿真模型与实验验证

胡浩茫1,陈焕新1,王彦忠1,谢军龙1,邓家生2,周阿龙1   

  1. 1华中科技大学能源与动力工程学院;2阳江市宝马利汽车空调设备有限公司
  • 收稿日期:2011-05-28 修回日期:2011-11-24 出版日期:2012-03-05 发布日期:2012-03-05
  • 通讯作者: 陈焕新

Simulation model and experimental study on parallel flow condenser based on two-phase flow regime

HU Haomang1,CHEN Huanxin1,WANG Yanzhong1,XIE Junlong1,DENG Jiasheng2,ZHOU Along1   

  • Received:2011-05-28 Revised:2011-11-24 Online:2012-03-05 Published:2012-03-05

关键词: 微通道, 两相流流型, 冷凝, 整体仿真模型

Abstract: The pressure drop and heat transfer of refrigerant depend on the mass velocity, phase state and flow regime in the non-circular microchannel of parallel flow condenser. However, the flow regime is not considered in available researches, in which the predictions on pressure drop and heat transfer coefficients in the two-phase flow are not satisfactory. In this study, a model with different flow regimes is employed based on the two-phase flow on refrigerant side and the pressure drop is predicted from the change of flow regime. The coupling between pressure drop and heat transfer is investigated. A simulation model on the parallel flow condenser is established and studied experimentally under 6 different working conditions. It is found that the multiple-flow-regime model with intermittent flow model, overlap model and annular flow model as submodels can be used to predict the heat transfer and flow characteristics of microchannel condenser. The model may provide a reference for optimization design for parallel flow condenser.

Key words: microchannel, two-phase flow regime, condensation, simulation model

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