Numerical Model of a Microchannel Parallel Flow Evaporator with New Flow Boiling Heat Transfer Correlation

被引：0
作者：
Ma L. [1 ]
Gu B. [1 ]
Tian Z. [1 ]
Li P. [1 ]
机构：
[1] Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai
来源：
Shanghai Jiaotong Daxue Xuebao/Journal of Shanghai Jiaotong University | 2017年 / 51卷 / 09期
关键词：
Flow boiling heat transfer; Microchannel parallel flow evaporator; New correlation; Numerical model;
D O I：
10.16183/j.cnki.jsjtu.2017.09.004
中图分类号：
学科分类号：
摘要：
In this paper, a numerical model with the recently proposed flow boiling heat transfer correlation was established for microchannel parallel flow evaporator. The numerical model was verified by comparing the experimental data with the open literature, where the refrigerant mass flow rate range was 34.6-245.6 kg/h and evaporation pressure was 200-500 kPa. The effects of four different flow boiling heat transfer correlations on the numerical model performance were investigated. Results showed that the correlation predicted 99% of experimental data in a ±30% error band. Moreover, the numerical model with the correlation yielded the mean absolute errors of 1.5%, 18.8%, 14.2% and 19.8% in prediction of cooling capacity, refrigerant superheat, air side and refrigerant side pressure drop, respectively. The presented numerical model can be used to evaluate and optimize the performance of microchannel parallel flow evaporator. © 2017, Shanghai Jiao Tong University Press. All right reserved.
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页码：1043 / 1049
页数：6
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