Effect of Superheat Steam on Ejector in Distilled Water Preparation System for Medical Injection

Yang, Bin; Ma, Xiaojing; Zhang, Hailun; Sun, Wenxu; Jia, Lixin; Xue, Haoyuan

doi:10.3390/e24070960

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…The ejector performance is assessed by ER defined as:

where

is the mass flow rate of primary flow (g·s −1 ), and

is the mass flow rate of secondary flow (g·s −1 ). According to [ 28 , 29 , 30 ], the designed geometrical parameters of the initial ejector are listed in Table 3 .…”

Section: Cfd Modellingmentioning

confidence: 99%

Optimization on Secondary Flow and Auxiliary Entrainment Inlets of an Ejector by Using Three-Dimensional Numerical Study

Yan

Jiang²,

Wang

2022

Entropy

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In this paper, by using three-dimensional numerical simulations, the optimization of the cross-sectional area and angle of the secondary flow inlet is first conducted. Then, to further improve the ejector performance, an auxiliary entrainment is proposed and the optimization of the relative position, cross-sectional area and angle of the auxiliary entrainment inlet is accordingly performed by using three-dimensional methods. The results show that: (1) the performance of the ejector with the secondary flow in a vertical direction to the primary flow is slightly better than that in a parallel direction to the primary flow; (2) the effect of the cross-sectional area of the secondary flow has a relatively evident influence on ER, but its effect becomes ignored when the inlet area increases to a certain value; (3) the relative position and axial width of the auxiliary entrainment inlet are important factors influencing ejector performance, and after the optimization of these two geometries, the ejector ER can be increased by 97.7%; and (4) the optimization of the auxiliary entrainment inlet has a substantial effect on the ejector performance as compared to that of the secondary flow inlet. The novelty of this study is that the effect of an auxiliary entrainment on the ejector’s performance is identified by using a three-dimensional numerical simulation for the first time.

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“…The ejector performance is assessed by ER defined as:

where

is the mass flow rate of primary flow (g·s −1 ), and

is the mass flow rate of secondary flow (g·s −1 ). According to [ 28 , 29 , 30 ], the designed geometrical parameters of the initial ejector are listed in Table 3 .…”

Section: Cfd Modellingmentioning

confidence: 99%

Optimization on Secondary Flow and Auxiliary Entrainment Inlets of an Ejector by Using Three-Dimensional Numerical Study

Yan

Jiang²,

Wang

2022

Entropy

View full text Add to dashboard Cite

show abstract

Effect of droplets in the primary flow on ejector performance of MED-TVC systems

Feng,

Yao,

Han

et al. 2024

Energy

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Investigation of Fluid Characteristic and Performance of an Ejector by a Wet Steam Model

Wang

2022

Entropy

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In this paper, a wet steam model is utilized to study the fluid characteristic and performance of a supersonic ejector. The condensation process, which has been ignored by most researchers, is analyzed in detail. It is found that the most intensive condensation happens at the primary nozzle downstream and nozzle exit region. Moreover, the impacts of primary flow pressure and back pressure on ejector performance are studied by the distribution of Mach number inside the ejector. Furthermore, the results show that the secondary mass flow rate first grows sightly then remains almost unchanged, while the primary mass flow rate rises sharply and ejector entrainment ratio drops dramatically with the increase in primary flow pressure.

show abstract

Effect of Superheat Steam on Ejector in Distilled Water Preparation System for Medical Injection

Cited by 3 publications

References 36 publications

Optimization on Secondary Flow and Auxiliary Entrainment Inlets of an Ejector by Using Three-Dimensional Numerical Study

Optimization on Secondary Flow and Auxiliary Entrainment Inlets of an Ejector by Using Three-Dimensional Numerical Study

Effect of droplets in the primary flow on ejector performance of MED-TVC systems

Investigation of Fluid Characteristic and Performance of an Ejector by a Wet Steam Model

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