Optimization of VD/VOD multi-stage serial steam ejectors based on CFD

IF 1.7 3区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Ironmaking & Steelmaking Pub Date : 2022-11-10 DOI:10.1080/03019233.2022.2139311

R. Amini, S. Kheradmand, Mehrdad Rasoulimoghadam

引用次数: 0

Abstract

ABSTRACT The objective of this research is to optimize the first two-stage ejectors of a VD/VOD system in order to increase the entrainment ratio (ER) of the system. By optimizing the first ejector, its working point is located in the double choked region, and its entrainment ratio increases up to 0.342. Furthermore, the maximum back pressure corresponding to the breaking point of the optimized first ejector increases by 12.1% compared to its original state. The working point of the original second ejector is in the single choked region and the performance of this ejector is also low. By optimizing the second ejector, the working point becomes closer to the double choked region, and its entrainment ratio increases by 26.43%. The outlet pressure corresponding to the breaking point of the optimized second ejector increases by 5.1% compared to its original state.

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基于CFD的VD/VOD多级串联蒸汽喷射器优化设计

摘要本研究的目的是优化VD/VOD系统的前两级喷射器，以提高系统的夹带率。通过优化第一引射器，使其工作点位于双阻流区，引射率提高到0.342。此外，与优化的第一喷射器的断裂点相对应的最大背压比其原始状态增加了12.1%。原来的第二喷射器的工作点在单阻流区，这种喷射器的性能也很低。通过优化第二喷射器，工作点更接近双阻区，其夹带率提高了26.43%。优化后的第二喷射机的破裂点对应的出口压力比原始状态提高了5.1%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Ironmaking & Steelmaking 工程技术-冶金工程

CiteScore

3.70

自引率

9.50%

发文量

125

审稿时长

2.9 months

期刊介绍： Ironmaking & Steelmaking: Processes, Products and Applications monitors international technological advances in the industry with a strong element of engineering and product related material. First class refereed papers from the international iron and steel community cover all stages of the process, from ironmaking and its attendant technologies, through casting and steelmaking, to rolling, forming and delivery of the product, including monitoring, quality assurance and environmental issues. The journal also carries research profiles, features on technological and industry developments and expert reviews on major conferences.