Model Investigation of Jet Flow Inside Two-phase Ejector

Chen Liang Liu Jinghui Chen Jiangping Chen Zhijiu

doi:10.3969/j.issn.0253-4339.2010.02.026

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Model Investigation of Jet Flow Inside Two-phase Ejector

更新时间：2025-02-26

- Model Investigation of Jet Flow Inside Two-phase Ejector
- Journal of Refrigeration Issue 2, (2010)
- 作者机构：
  
  上海交通大学制冷与低温工爱研究所,上海,200240
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2010.02.026
  CLC：
- Published：2010
- 稿件说明：
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Chen Liang Liu Jinghui Chen Jiangping Chen Zhijiu. Model Investigation of Jet Flow Inside Two-phase Ejector[J]. Journal of refrigeration, 2010, (2).
DOI：

Chen Liang Liu Jinghui Chen Jiangping Chen Zhijiu. Model Investigation of Jet Flow Inside Two-phase Ejector[J]. Journal of refrigeration, 2010, (2). DOI： 10.3969/j.issn.0253-4339.2010.02.026.

摘要

研究了压缩/喷射制冷系统中两相流喷射器内的射流发展过程

沿喷射器内部射流的流动方向分段对射流压力调整过程、射流混合、均匀过程和扩压过程进行建模

得到喷射器的引射比和出口背压随冷凝温度与蒸发温度的变化特性.模型的预测结果与实验测试结果在变化趋势上完全一致

压缩/喷射制冷循环中的冷凝温度越大

喷射器的引射比和出口背压越大

节能效果越好;蒸发温度存在一个最佳值

使得引射比最大

出口背压增大效果较好.

Abstract

The jet flow development inside an ejector in a compression/ejection refrigeration cycle was investigated.The flow processes along the flow path inside the ejector were modeled including pressure adjustment

jet mixture

equalization

and diffusion.The computing results are well consistent with the experimental data.The entrainment ratio

outlet pressure

and energy-saving effect increase with the increase in condensing temperature in the compression/ejection refrigeration cycle.Moreover

there is an optimum evap...

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Related Institution

Inst. of Refrigeration and Cryogenics Eng., Shanghai Jiao tong Univ.

Beijing Institute of Civil Engineering and Architecture

Shanghai Jiao Tong University

School of Engineering, Sun Yat-sen University

Engineering School, Sun Yat - Sen University

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