{"title":"A study on the factors influencing the transient deformation characteristics of compressor cylinders based on thermal–mechanical coupling","authors":"Guoxu Zhang, Zhiqiang Huang, Cheng Wang, Zhenye Li, Shichaun Tan, Biao Xu","doi":"10.1016/j.tsep.2024.103044","DOIUrl":null,"url":null,"abstract":"<div><div>The deformation of the reciprocating compressor seriously affects the efficiency and reliability of the shale gas extraction unit. In order to study the deformation characteristics and influencing factors, this paper established a coupled system model of reciprocating compressor cylinder block-piston assembly, proposed a transient calculation method applicable to the 3D compressor cylinder model, and studied and analyzed the heat transfer characteristics, deformation characteristics, and main factors influencing the deformation of each component in one cycle. The results show that the temperature of the compressor cylinder shows a “W”-type trend, with low temperature fluctuation; the stress and deformation of the cylinder block are almost unchanged, and the stress of the piston fluctuates greatly, with a maximum fluctuation of 14.37 MPa; the temperature and deformation of the compressor cylinder block-piston assembly show the distribution characteristics of ‘high out and low in’; the maximum deformation of the cylinder block at the extreme moment is 0.298 mm; the piston ring expands and deforms on the exhaust side, and shrinks on the intake side, the maximum deformation is 0.089 mm at the extreme moment; thermal load has a greater influence on the deformation of the working chamber and piston ring.</div></div>","PeriodicalId":23062,"journal":{"name":"Thermal Science and Engineering Progress","volume":"56 ","pages":"Article 103044"},"PeriodicalIF":5.1000,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Thermal Science and Engineering Progress","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2451904924006620","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
Abstract
The deformation of the reciprocating compressor seriously affects the efficiency and reliability of the shale gas extraction unit. In order to study the deformation characteristics and influencing factors, this paper established a coupled system model of reciprocating compressor cylinder block-piston assembly, proposed a transient calculation method applicable to the 3D compressor cylinder model, and studied and analyzed the heat transfer characteristics, deformation characteristics, and main factors influencing the deformation of each component in one cycle. The results show that the temperature of the compressor cylinder shows a “W”-type trend, with low temperature fluctuation; the stress and deformation of the cylinder block are almost unchanged, and the stress of the piston fluctuates greatly, with a maximum fluctuation of 14.37 MPa; the temperature and deformation of the compressor cylinder block-piston assembly show the distribution characteristics of ‘high out and low in’; the maximum deformation of the cylinder block at the extreme moment is 0.298 mm; the piston ring expands and deforms on the exhaust side, and shrinks on the intake side, the maximum deformation is 0.089 mm at the extreme moment; thermal load has a greater influence on the deformation of the working chamber and piston ring.
期刊介绍：
Thermal Science and Engineering Progress (TSEP) publishes original, high-quality research articles that span activities ranging from fundamental scientific research and discussion of the more controversial thermodynamic theories, to developments in thermal engineering that are in many instances examples of the way scientists and engineers are addressing the challenges facing a growing population – smart cities and global warming – maximising thermodynamic efficiencies and minimising all heat losses. It is intended that these will be of current relevance and interest to industry, academia and other practitioners. It is evident that many specialised journals in thermal and, to some extent, in fluid disciplines tend to focus on topics that can be classified as fundamental in nature, or are ‘applied’ and near-market. Thermal Science and Engineering Progress will bridge the gap between these two areas, allowing authors to make an easy choice, should they or a journal editor feel that their papers are ‘out of scope’ when considering other journals. The range of topics covered by Thermal Science and Engineering Progress addresses the rapid rate of development being made in thermal transfer processes as they affect traditional fields, and important growth in the topical research areas of aerospace, thermal biological and medical systems, electronics and nano-technologies, renewable energy systems, food production (including agriculture), and the need to minimise man-made thermal impacts on climate change. Review articles on appropriate topics for TSEP are encouraged, although until TSEP is fully established, these will be limited in number. Before submitting such articles, please contact one of the Editors, or a member of the Editorial Advisory Board with an outline of your proposal and your expertise in the area of your review.
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