Ejector performance prediction at critical and subcritical operational modes
Ejector performance prediction at critical and subcritical operational modes
复制标题
临界和亚临界运行模式下的喷射器性能预测
DOI:
10.1016/j.applthermaleng.2016.12.116
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发表时间:
2017-03
影响因子:
6.4
通讯作者:
Jae-Myung Lee
中科院分区:
文献类型:
--
作者:
Fenglei Li;Qi Tian;Changzhi Wu;Xiangyu Wang;Jae-Myung Lee
Traditional ejector models are focusing on the ejector performance predictions at critical mode under design conditions. In reality, ejector systems cannot be operated under these conditions perfectly. Thus, the study of ejector performance at subcritical mode under off-design conditions is important. In this paper, novel models for ejector performance predictions at critical point and breakdown point are developed based on constant-pressure mixing and constant-pressure disturbing assumptions. Then, the two models are integrated as the model to predict ejector performance at critical and subcritical operational modes. In order to determine the ejector component efficiencies in the models, a novel concept, the effect of the change (EOC) of efficiency, is introduced to identify the efficiencies which affect ejector performance significantly. Then, the identified efficiencies are determined by sparsity-enhanced optimization method. The predicted results obtained by our model are much more accurate than those obtained by existing methods.
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DOI:
10.1016/0140-6701(95)96874-c
发表时间:
1995
期刊:
Journal of The Institute of Energy
影响因子:
--
作者:
Dajie Sun;I. Eames
通讯作者:
Dajie Sun;I. Eames
影响因子:
10.4
作者:
Cardemil, Jose M.;Colle, Sergio
通讯作者:
Colle, Sergio
DOI:
10.1016/j.ijrefrig.2013.04.009
发表时间:
2013-09-01
期刊:
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
影响因子:
--
作者:
Chen, WeiXiong;Liu, Ming;Bartosiewicz, Yann
通讯作者:
Bartosiewicz, Yann
影响因子:
6.4
作者:
Zhao, Hongxia;Zhang, Ke;Han, Jitian
通讯作者:
Han, Jitian
影响因子:
4.1
作者:
Liu, Jianjun;Teo, K. L.;Wu, Changzhi
通讯作者:
Wu, Changzhi