Operation analysis of C3-MR process cold box by grey system theory

Abstract In this paper, the problems of high refrigerant line differential pressure and uneven distribution of cold energy in cold box regulation under C3-MR process are studied. Five reasons are predicted by engineering performance. Using gas chromatography experiment and grey system pure mathemati...

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Autores principales:	Yuan Yang, Chuantao Xiao, Zhipeng Jia
Formato:	article
Lenguaje:	EN
Publicado:	Springer 2021
Materias:	Cold box Grey relation analysis GM(1,N) Mixed refrigerant Latent heat of vaporization Science Q Technology T
Acceso en línea:	https://doaj.org/article/453c64cd63574850bca775c98022ec78
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spelling	oai:doaj.org-article:453c64cd63574850bca775c98022ec782021-12-05T12:10:03ZOperation analysis of C3-MR process cold box by grey system theory10.1007/s42452-021-04890-02523-39632523-3971https://doaj.org/article/453c64cd63574850bca775c98022ec782021-12-01T00:00:00Zhttps://doi.org/10.1007/s42452-021-04890-0https://doaj.org/toc/2523-3963https://doaj.org/toc/2523-3971Abstract In this paper, the problems of high refrigerant line differential pressure and uneven distribution of cold energy in cold box regulation under C3-MR process are studied. Five reasons are predicted by engineering performance. Using gas chromatography experiment and grey system pure mathematics analysis, it is determined that the main causes of the problem are unreasonable distribution ratio of each group of mixed refrigerants and disordered latent heat of vaporization of refrigerants. Furthermore, the grey system model is used to study: 1. grey relation analysis model shows that the correlation degree of T3 temperature measuring point is 0.8552, which is the only main factor. The abnormal working condition is determined by the project to be caused by incorrect proportion of N2 components. 2. According to GM(1,N) model, the driving term of T3 temperature measuring point is 3.8304, which needs to be supplemented with N2 component to eliminate the problem. 3. After adding N2 to 10% (mol component), abnormal working conditions disappeared. The GM(1,N) model is used again to verify that the difference of driving results is small, the average relative error is 24.91%, and the accuracy of the model is in compliance.Yuan YangChuantao XiaoZhipeng JiaSpringerarticleCold boxGrey relation analysisGM(1,N)Mixed refrigerantLatent heat of vaporizationScienceQTechnologyTENSN Applied Sciences, Vol 4, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Cold box Grey relation analysis GM(1,N) Mixed refrigerant Latent heat of vaporization Science Q Technology T
spellingShingle	Cold box Grey relation analysis GM(1,N) Mixed refrigerant Latent heat of vaporization Science Q Technology T Yuan Yang Chuantao Xiao Zhipeng Jia Operation analysis of C3-MR process cold box by grey system theory
description	Abstract In this paper, the problems of high refrigerant line differential pressure and uneven distribution of cold energy in cold box regulation under C3-MR process are studied. Five reasons are predicted by engineering performance. Using gas chromatography experiment and grey system pure mathematics analysis, it is determined that the main causes of the problem are unreasonable distribution ratio of each group of mixed refrigerants and disordered latent heat of vaporization of refrigerants. Furthermore, the grey system model is used to study: 1. grey relation analysis model shows that the correlation degree of T3 temperature measuring point is 0.8552, which is the only main factor. The abnormal working condition is determined by the project to be caused by incorrect proportion of N2 components. 2. According to GM(1,N) model, the driving term of T3 temperature measuring point is 3.8304, which needs to be supplemented with N2 component to eliminate the problem. 3. After adding N2 to 10% (mol component), abnormal working conditions disappeared. The GM(1,N) model is used again to verify that the difference of driving results is small, the average relative error is 24.91%, and the accuracy of the model is in compliance.
format	article
author	Yuan Yang Chuantao Xiao Zhipeng Jia
author_facet	Yuan Yang Chuantao Xiao Zhipeng Jia
author_sort	Yuan Yang
title	Operation analysis of C3-MR process cold box by grey system theory
title_short	Operation analysis of C3-MR process cold box by grey system theory
title_full	Operation analysis of C3-MR process cold box by grey system theory
title_fullStr	Operation analysis of C3-MR process cold box by grey system theory
title_full_unstemmed	Operation analysis of C3-MR process cold box by grey system theory
title_sort	operation analysis of c3-mr process cold box by grey system theory
publisher	Springer
publishDate	2021
url	https://doaj.org/article/453c64cd63574850bca775c98022ec78
work_keys_str_mv	AT yuanyang operationanalysisofc3mrprocesscoldboxbygreysystemtheory AT chuantaoxiao operationanalysisofc3mrprocesscoldboxbygreysystemtheory AT zhipengjia operationanalysisofc3mrprocesscoldboxbygreysystemtheory
_version_	1718372187552874496

Operation analysis of C3-MR process cold box by grey system theory

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