A control oriental model for-combined compression-ejector refrigeration system

被引：24
作者：
Liu, Jiapeng [1 ]
Wang, Lei [1 ]
Jia, Lei [1 ]
Li, Zhen [1 ]
Zhao, Hongxia [2 ]
机构：
[1] Shandong Univ, Sch Control Sci & Engn, Jinan 250061, Peoples R China
[2] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2017年 / 138卷
关键词：
Ejector refrigeration system; Compressor; Control model; Parameter identification; Pressure pulsating phenomenon; STEAM EJECTOR; PERFORMANCE;
D O I：
10.1016/j.enconman.2017.02.033
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Combined compression-ejector refrigeration systems have attracted lots of attention in recent years. In order to improve the running stability of the complex refrigeration system, it is necessary to obtain a simple and accuracy mathematical model for system control. In this paper, a control oriental model for combined compression ejector system is proposed. By analyzing the inner relationship between compressor and ejector, a hybrid model is built based on thermodynamic principles and lumped parameter method. Comparing with traditional theoretical models, the model is more suitable for system control due to its simpler structure and less parameters. Then the pressure pulsating phenomenon inside the piping system between compressor and ejector is investigated based on the model. The effectiveness of the proposed model is validated by experimental data. It is shown that the model can reflect the system performance under variable operating conditions. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：538 / 546
页数：9
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