Multi-objective sensitivity analysis of shell-and-tube LHTES performance

In the present paper a sensitivity analysis has been carried out concerning the charging/discharging time and the stored energy performances of a shell-and-tube LHTES with respect to the number of tubes and the tube internal radius. The aim of this analysis is to investigate how the design variables...

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Main Authors: Fornarelli Francesco, Dambrosio Lorenzo
Format: Article
Language:English
Published: EDP Sciences 2021-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_01006.pdf
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author Fornarelli Francesco
Dambrosio Lorenzo
author_facet Fornarelli Francesco
Dambrosio Lorenzo
author_sort Fornarelli Francesco
collection DOAJ
description In the present paper a sensitivity analysis has been carried out concerning the charging/discharging time and the stored energy performances of a shell-and-tube LHTES with respect to the number of tubes and the tube internal radius. The aim of this analysis is to investigate how the design variables affect the LHTES performance. this could lead to determine the thermal storage optimal design. Thus, the sensitivity analysis has a key role in the selection of several acceptable solutions. The considered LHTES exhibits a cylindrical shell geometry characterized by constant height and diameter. This aspect has allowed to employ simplified theoretical models able to predict the charging/discharging time and the stored energy performance. These models consider a constant heat exchange wall temperature whereas the heat exchange area and the whole PCM volume vary according to the design variables. This analysis represents the first step to solve the multi-objective optimization of the thermal storage design problem and then to determine the best solutions in both design variables and thermal storage performance domains.
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spelling doaj.art-e00d5cec2f8c4eb7a173b607b8655d5c2022-12-21T21:21:35ZengEDP SciencesE3S Web of Conferences2267-12422021-01-013120100610.1051/e3sconf/202131201006e3sconf_ati2021_01006Multi-objective sensitivity analysis of shell-and-tube LHTES performanceFornarelli Francesco0Dambrosio Lorenzo1University of Foggia, Department of Sciences of Agriculture, Food, Natural Resources and EngineeringPolytechnic University of Bari, Department of Mechanics, Mathematics and ManagementIn the present paper a sensitivity analysis has been carried out concerning the charging/discharging time and the stored energy performances of a shell-and-tube LHTES with respect to the number of tubes and the tube internal radius. The aim of this analysis is to investigate how the design variables affect the LHTES performance. this could lead to determine the thermal storage optimal design. Thus, the sensitivity analysis has a key role in the selection of several acceptable solutions. The considered LHTES exhibits a cylindrical shell geometry characterized by constant height and diameter. This aspect has allowed to employ simplified theoretical models able to predict the charging/discharging time and the stored energy performance. These models consider a constant heat exchange wall temperature whereas the heat exchange area and the whole PCM volume vary according to the design variables. This analysis represents the first step to solve the multi-objective optimization of the thermal storage design problem and then to determine the best solutions in both design variables and thermal storage performance domains.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_01006.pdf
spellingShingle Fornarelli Francesco
Dambrosio Lorenzo
Multi-objective sensitivity analysis of shell-and-tube LHTES performance
E3S Web of Conferences
title Multi-objective sensitivity analysis of shell-and-tube LHTES performance
title_full Multi-objective sensitivity analysis of shell-and-tube LHTES performance
title_fullStr Multi-objective sensitivity analysis of shell-and-tube LHTES performance
title_full_unstemmed Multi-objective sensitivity analysis of shell-and-tube LHTES performance
title_short Multi-objective sensitivity analysis of shell-and-tube LHTES performance
title_sort multi objective sensitivity analysis of shell and tube lhtes performance
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/88/e3sconf_ati2021_01006.pdf
work_keys_str_mv AT fornarellifrancesco multiobjectivesensitivityanalysisofshellandtubelhtesperformance
AT dambrosiolorenzo multiobjectivesensitivityanalysisofshellandtubelhtesperformance