Efficiency Improvement of a Centrifugal Compressor Stage with the Parametric Optimization of the Impeller Blades

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-12-01 DOI:10.2478/jaes-2022-0021

N. Ben, S. Ryzhkov, A. Topalov, O. Gerasin, G. Yan, Xi Yan, A. Aleksieieva

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Abstract

Abstract This work relates to the energy industry, in particular, complements the existing knowledge about a problem of increasing the overall efficiency of a centrifugal compressor stage by improving the geometric parameters of an impeller. The design features of the centrifugal compressors are analysed and the issues of their general modelling are considered in the article. The aim of the work is to increase the efficiency of the centrifugal compressor stage by improving the method of thermogasdynamic calculation with an extended determination of the number of its thermogasdynamic gas parameters and subsequent optimization of the design parameters of the impeller blades. This goal is achieved by solving the following problems: a) development of a model of the centrifugal compressor stage based on a method of thermogasdynamic calculation; b) study of the influence of the geometric parameters of the impeller and a diffuser on the components of gas velocities; c) improvement of the design methodology by optimizing the number of impeller blades, their thickness and angle of inclination to increase the efficiency of the stage. The most significant scientific results of the work are the construction method and the model of the centrifugal compressor stage, which allow taking into account real thermogasdynamic gas processes and calculating the geometric parameters of the impeller blades that are optimal in terms of efficiency.

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叶轮叶片参数优化提高离心压缩机级效率

摘要这项工作涉及能源行业，特别是补充了现有的知识，即通过改进叶轮的几何参数来提高离心压缩机级的整体效率。分析了离心式压缩机的设计特点，并考虑了其通用建模问题。这项工作的目的是通过改进热气体动力学计算方法，扩展确定其热气体动力学气体参数的数量，并随后优化叶轮叶片的设计参数，来提高离心压缩机级的效率。该目标通过解决以下问题来实现：a）基于热气体动力学计算方法开发离心压缩机级的模型；b）研究了叶轮和扩压器的几何参数对气体速度分量的影响；c）通过优化叶轮叶片的数量、厚度和倾角来改进设计方法，以提高级的效率。这项工作最重要的科学成果是离心压缩机级的构造方法和模型，它可以考虑真实的热气体动力学气体过程，并计算在效率方面最佳的叶轮叶片的几何参数。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.