Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5012971 | Energy Conversion and Management | 2017 | 9 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Energy
Energy (General)
Authors
Jiapeng Liu, Lei Wang, Lei Jia, Zhen Li, Hongxia Zhao,