Maximum mass flow ratio due to secondary flow choking in an ejector refrigeration system

被引：56

作者：

Chou, SK ^{[1
]}

Yang, PR ^{[1
]}

Yap, C ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech & Prod Engn, Singapore 119260, Singapore

来源：

INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2001年 / 24卷 / 06期

关键词：

refrigerating system; ejector system; performance; modelling; calculation;

D O I：

10.1016/S0140-7007(00)00074-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The occurrence of flow choking in an ejector of an ejector refrigeration system (ERS) was analysed and a model for predicting the maximum flow ratio of the ejector was developed. The multi-parameter equation to calculate the mass flow ratio takes into account the performance of the primary nozzle, the flow entrainment and mixing relating to ejector geometry and operating conditions. We validated the model using the reported experimental data of refrigerant R113, R141b and steam ERS. The present model was shown to provide better accuracy compared with results obtained by applying the existing I-D ejector theory. We discussed the application of the model and highlighted the significance of the parameters for future work. (C) 2001 Elsevier Science Ltd and IIR. All rights reserved.

引用

页码：486 / 499

页数：14