The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps

[EN]The performance characteristics, operation, and design strategies of a class of thermally driven heat pumps are investigated due to their important roles in the efficient utilization of low-grade thermal energy. In order to establish a more generic thermodynamic model of thermally driven heat pu...

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Detalhes bibliográficos
Autores: Guo, Juncheng, Hanxin, Yang, González Ayala, Julián, Roco, J. M. M., Medina Domínguez, Alejandro, Calvo Hernández, Antonio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/143741
Acesso em linha:http://hdl.handle.net/10366/143741
Access Level:acceso embargado
Palavra-chave:Three-heat-source cycle model
Low-dissipation assumption
Performance bound
Optimal analyses
Thermally driven heat pump
2213 Termodinámica
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spelling The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumpsGuo, JunchengHanxin, YangGonzález Ayala, JuliánRoco, J. M. M.Medina Domínguez, AlejandroCalvo Hernández, AntonioThree-heat-source cycle modelLow-dissipation assumptionPerformance boundOptimal analysesThermally driven heat pump2213 Termodinámica[EN]The performance characteristics, operation, and design strategies of a class of thermally driven heat pumps are investigated due to their important roles in the efficient utilization of low-grade thermal energy. In order to establish a more generic thermodynamic model of thermally driven heat pumps mainly including absorption, adsorption, and ejector heat pumps, low-dissipation assumption is adopted. Accordingly, the associated dissipation parameters accounting for the specific information on the irreversibilities in each heat-transfer process are introduced rather than specifying heat-transfer law. Based on the proposed model, the theoretical results of the coefficient of performance and heat load are derived with regard to two key parameters denoting the size ratio of the two involved subsystems and the matching deviation from reversible limit. The performance characteristics and the optimally operating regions of the whole system are determined and the differences between thermally driven heat pump and refrigerator are highlighted. The proposed model and obtained results further develop the low-dissipation modelinfo202020202020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/143741reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)Inglésinfo:eu-repo/semantics/embargoedAccessoai:gredos.usal.es:10366/1437412026-06-07T06:28:51Z
dc.title.none.fl_str_mv The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
title The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
spellingShingle The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
Guo, Juncheng
Three-heat-source cycle model
Low-dissipation assumption
Performance bound
Optimal analyses
Thermally driven heat pump
2213 Termodinámica
title_short The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
title_full The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
title_fullStr The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
title_full_unstemmed The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
title_sort The equivalent low-dissipation combined cycle system and optimal analyses of a class of thermally driven heat pumps
dc.creator.none.fl_str_mv Guo, Juncheng
Hanxin, Yang
González Ayala, Julián
Roco, J. M. M.
Medina Domínguez, Alejandro
Calvo Hernández, Antonio
author Guo, Juncheng
author_facet Guo, Juncheng
Hanxin, Yang
González Ayala, Julián
Roco, J. M. M.
Medina Domínguez, Alejandro
Calvo Hernández, Antonio
author_role author
author2 Hanxin, Yang
González Ayala, Julián
Roco, J. M. M.
Medina Domínguez, Alejandro
Calvo Hernández, Antonio
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Three-heat-source cycle model
Low-dissipation assumption
Performance bound
Optimal analyses
Thermally driven heat pump
2213 Termodinámica
topic Three-heat-source cycle model
Low-dissipation assumption
Performance bound
Optimal analyses
Thermally driven heat pump
2213 Termodinámica
description [EN]The performance characteristics, operation, and design strategies of a class of thermally driven heat pumps are investigated due to their important roles in the efficient utilization of low-grade thermal energy. In order to establish a more generic thermodynamic model of thermally driven heat pumps mainly including absorption, adsorption, and ejector heat pumps, low-dissipation assumption is adopted. Accordingly, the associated dissipation parameters accounting for the specific information on the irreversibilities in each heat-transfer process are introduced rather than specifying heat-transfer law. Based on the proposed model, the theoretical results of the coefficient of performance and heat load are derived with regard to two key parameters denoting the size ratio of the two involved subsystems and the matching deviation from reversible limit. The performance characteristics and the optimally operating regions of the whole system are determined and the differences between thermally driven heat pump and refrigerator are highlighted. The proposed model and obtained results further develop the low-dissipation model
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
info
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/143741
url http://hdl.handle.net/10366/143741
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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