Analysis on exergy efficiency of ejector with peripheral steam entrance

CAI Qin; TONG Mingwei; BAI Xiujuan; ZHANG Qiang

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Analysis on exergy efficiency of ejector with peripheral steam entrance

更新时间：2025-12-10

- Analysis on exergy efficiency of ejector with peripheral steam entrance
- CIESC Journal Issue 5, Pages: 1078-1082(2010)
- 作者机构：
  
  重庆大学动力工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 May 2010，
  
  Published：05 May 2010
- 稿件说明：
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CAI Qin, TONG Mingwei, BAI Xiujuan, et al. Analysis on exergy efficiency of ejector with peripheral steam entrance[J]. CIESC Journal, 2010, (5): 1078-1082.
DOI：

CAI Qin, TONG Mingwei, BAI Xiujuan, et al. Analysis on exergy efficiency of ejector with peripheral steam entrance[J]. CIESC Journal, 2010, (5): 1078-1082. DOI：

摘要

对环周进汽型喷射器的工作原理进行了深入分析，从可用能角度出发，建立了分析喷射器运行经济性的火用分析模型，计算得到了不同结构参数和运行参数下喷射器的火用效率，对喷射器火用效率的影响因素进行了分析，并将计算值与实验结果进行了对比。研究结果表明，喷射器的火用效率随入口水温、引射系数和升压比的升高而增大，随蒸汽压力的变化存在最小值，计算和实验得到的各参数对喷射器火用效率的影响规律基本一致，为环周进汽型喷射器的设计和应用提供了理论基础。

Abstract

The principle of an ejector with peripheral steam entrance was studied in detail.The exergy analysis model of ejector was based on the available energy

from which the exergy efficiency of ejector with different structural and operating parameters was calculated.The factors influencing the exergy efficiency were investigated.The results indicate that the exergy efficiency of ejector increases with inlet water temperature

ejecting coefficient and pressure ratio.There exits a minimum exergy efficiency while steam pressure changes.The relationship between exergy efficiency and different parameters obtained by calculation was in good agreement with experimental results.This study provides a theoretical basis for the design and application of the ejector with peripheral steam entrance.

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