Novel Ejector Model with Experimental Validation

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Novel Ejector Model with Experimental Validation

更新时间：2025-07-09

- Novel Ejector Model with Experimental Validation
- Vol. 42, Issue 9, Pages: 1096-1101(2008)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院,西安,710049
  2. 南洋理工大学电子与电气工程学院,新加坡,639798
- 作者简介：
- 基金信息：
- DOI：
  CLC： TB61
- Online First：10 September 2008，
  
  Published：2008
- 稿件说明：
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Novel Ejector Model with Experimental Validation[J]. 2008, 42(9): 1096-1101.
DOI：

Novel Ejector Model with Experimental Validation[J]. 2008, 42(9): 1096-1101. DOI：

摘要

根据喷射器内的湍流流动特征

引入临界圆的概念

即引射流体在混合腔入口处马赫数为1的位置; 依据管内流动的速度分布特点

定义了一个二维速度分布函数来近似喷射器内的实际速度分布; 利用喷射器的进出口能量平衡方程

建立了一种新的喷射器模型.模型的计算过程非常简单

不需要迭代计算.相比于现有的一维喷射器模型

采用二维速度分布函数的新模型具有较高的精度

同时它只含有8个代数方程

有结构简单和便于应用的优点.采用低沸点的R141B作为工质

建立了一个喷射制冷循环的实验平台.实验验证结果显示

新模型预测引射系数的最大误差仅为-6.03%

因此可以用于对喷射器的性能进行仿真和预测.

Abstract

According to the turbulent flow behavior in the ejector

a critical circle at the entrance of mixing chamber is introduced

where the Mach number of entrained flow gets 1. Based on the characteristic of velocity distribution in a pipe

a 2D function is adopted to approximate the real velocity distribution inside the ejector. An overall energy conservation equation is used to complete the ejector mathematic model. Compared with the existing 1D models

the new model with the 2D velocity distribution function is more accurate. In addition

the new model is very simple which only consists of 8 algebraic equations and can be conveniently utilized for the performance prediction

and the effectiveness of the model is validated by the experiments.

关键词

Keywords

references

刘志强,沈胜强,李素芬.喷射器一维设计理论的研究进展[J].热能动力工程,2001,16(93):229-232.

LIU Zhiqiang, SHEN Shengqiang, LI Sufen. Recent advances in the study of one-dimensional ejector design theory[J]. Journal of Engineering for Thermal Energy & Power, 2001, 16(93): 229-232.

周新建,陈听宽.引射喷嘴流量系数的计算方法[J].化工学报,2002,53(10):1902-1904.

ZHOU Xinjian, CHEN Tingkuan. Determination of flow rate coefficient of jet exhausting atomization nozzle[J]. Journal of Chemical Industry and Engineering, 2002, 53(10): 1902-1904.

徐海涛,桑芝富.蒸汽喷射器喷射系数计算的热力学模型[J].化工学报,2004,55(5):704-710.

XU Haitao, SANG Zhifu. Thermodynamics models for calculating entrainment ratio of steam-jet ejector[J]. Journal of Chemical Industry and Engineering, 2004, 55(5): 704-710.

陈华,鱼剑琳,任云锋,等.一种新型喷射制冷循环的理论分析[J].西安交通大学学报,2005,39(11):1215-1240.

CHEN Hua, YU Jianlin, REN Yunfeng, et al. Theoretical analysis on new ejector refrigeration cycle[J]. Journal of Xi'an Jiaotong University, 2005, 39(11): 1215-1240.

HUANG B J, CHANG J M, WANG C P, et al. A 1-D analysis of ejector performance[J]. International Journal of Refrigeration, 1999, 22(5): 354-364.

YAPICI R, ERSOY H K. Performance characteristics of the ejector refrigeration system based on the constant area ejector flow model[J]. Energy Conversion and Management, 2005, 46(18/19): 3117-3135.

ZHU Yinhai, CAI Wenjian, WEN Changyun, et al. Shock circle model for ejector performance evaluation[J]. Energy Conversion and Management, 2007, 48(9): 2533-2541.

BARTOSIEWICZ Y, AIDOUN Z, DESEVAUX P, et al. Numerical and experimental investigations on supersonic ejectors[J]. International Journal of Heat and Fluid Flow, 2005, 26(1): 56-70.

RUSLY E, AYE L, CHARTERS W W S, et al. CFD analysis of ejector in a combined ejector cooling system[J]. International Journal of Refrigeration, 2005, 28(7): 1092-1101.

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