Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.energy.2015.06.094 http://hdl.handle.net/11449/160945 |
Resumo: | In this study, the first and second laws of thermodynamics are used to analyze the quantity and quality of energy in a small compact trigeneration system. This combined cycle is composed of a little reciprocating ICE model GM, 1.0 CORSA (internal combustion engine), using LPG (liquefied petroleum gas) as fuel, HE1 and HE2 (two heat exchangers) and an AM (absorption machine) using ammonia water as working fluid mixture. The mass and energy balance equations of the engine and subsystems are reviewed in detail. Exergy of each involved stream is calculated and the exergetic balance of each subsystem is presented, as well as the global system, identifying where and why losses and irreversibilities occurs. Efficiencies based on the second law of thermodynamics are calculated for each subsystem and compared. Special attention is given to identification and quantification of second law efficiencies and the irreversibilities of various processes and subsystems. The determination of the irreversibilities in each subsystem is particularly important since they are not identified in traditional first law analysis. Furthermore, this study revealed that the combustion was the most important contributor to the system inefficiency representing 36.0% of the total exergy input and 73% of the total exergy destruction. The exergetic efficiency of the trigeneration system is determined to be 51.19%. (C) 2015 Elsevier Ltd. All rights reserved. |
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Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gasCogenerationEnergeticExergeticInternal combustion engineEfficienciesIn this study, the first and second laws of thermodynamics are used to analyze the quantity and quality of energy in a small compact trigeneration system. This combined cycle is composed of a little reciprocating ICE model GM, 1.0 CORSA (internal combustion engine), using LPG (liquefied petroleum gas) as fuel, HE1 and HE2 (two heat exchangers) and an AM (absorption machine) using ammonia water as working fluid mixture. The mass and energy balance equations of the engine and subsystems are reviewed in detail. Exergy of each involved stream is calculated and the exergetic balance of each subsystem is presented, as well as the global system, identifying where and why losses and irreversibilities occurs. Efficiencies based on the second law of thermodynamics are calculated for each subsystem and compared. Special attention is given to identification and quantification of second law efficiencies and the irreversibilities of various processes and subsystems. The determination of the irreversibilities in each subsystem is particularly important since they are not identified in traditional first law analysis. Furthermore, this study revealed that the combustion was the most important contributor to the system inefficiency representing 36.0% of the total exergy input and 73% of the total exergy destruction. The exergetic efficiency of the trigeneration system is determined to be 51.19%. (C) 2015 Elsevier Ltd. All rights reserved.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Sao Paulo State Univ, Fac Engn Guaratingueta, Dept Energy, LOSE Lab Optimizat Energy Syst, Sao Paulo, BrazilSao Paulo State Univ, Fac Engn Guaratingueta, Dept Energy, LOSE Lab Optimizat Energy Syst, Sao Paulo, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)Perez, Nestor Proenza [UNESP]Sadamitsu, Marlene Titosse [UNESP]Silveira, Jose Luz [UNESP]Antunes, Julio Santana [UNESP]Tuna, Celso Eduardo [UNESP]Valle, Atilio Erazo [UNESP]Silva, Natalia Faria [UNESP]2018-11-26T16:17:21Z2018-11-26T16:17:21Z2015-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1411-1419application/pdfhttp://dx.doi.org/10.1016/j.energy.2015.06.094Energy. Oxford: Pergamon-elsevier Science Ltd, v. 90, p. 1411-1419, 2015.0360-5442http://hdl.handle.net/11449/16094510.1016/j.energy.2015.06.094WOS:000364245300019WOS000364245300019.pdf41057815129291030000-0003-1111-1526Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnergy1,990info:eu-repo/semantics/openAccess2023-11-01T06:15:00Zoai:repositorio.unesp.br:11449/160945Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-01T06:15Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
title |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
spellingShingle |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas Perez, Nestor Proenza [UNESP] Cogeneration Energetic Exergetic Internal combustion engine Efficiencies |
title_short |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
title_full |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
title_fullStr |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
title_full_unstemmed |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
title_sort |
Energetic and exergetic analysis of a new compact trigeneration system run with liquefied petroleum gas |
author |
Perez, Nestor Proenza [UNESP] |
author_facet |
Perez, Nestor Proenza [UNESP] Sadamitsu, Marlene Titosse [UNESP] Silveira, Jose Luz [UNESP] Antunes, Julio Santana [UNESP] Tuna, Celso Eduardo [UNESP] Valle, Atilio Erazo [UNESP] Silva, Natalia Faria [UNESP] |
author_role |
author |
author2 |
Sadamitsu, Marlene Titosse [UNESP] Silveira, Jose Luz [UNESP] Antunes, Julio Santana [UNESP] Tuna, Celso Eduardo [UNESP] Valle, Atilio Erazo [UNESP] Silva, Natalia Faria [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Perez, Nestor Proenza [UNESP] Sadamitsu, Marlene Titosse [UNESP] Silveira, Jose Luz [UNESP] Antunes, Julio Santana [UNESP] Tuna, Celso Eduardo [UNESP] Valle, Atilio Erazo [UNESP] Silva, Natalia Faria [UNESP] |
dc.subject.por.fl_str_mv |
Cogeneration Energetic Exergetic Internal combustion engine Efficiencies |
topic |
Cogeneration Energetic Exergetic Internal combustion engine Efficiencies |
description |
In this study, the first and second laws of thermodynamics are used to analyze the quantity and quality of energy in a small compact trigeneration system. This combined cycle is composed of a little reciprocating ICE model GM, 1.0 CORSA (internal combustion engine), using LPG (liquefied petroleum gas) as fuel, HE1 and HE2 (two heat exchangers) and an AM (absorption machine) using ammonia water as working fluid mixture. The mass and energy balance equations of the engine and subsystems are reviewed in detail. Exergy of each involved stream is calculated and the exergetic balance of each subsystem is presented, as well as the global system, identifying where and why losses and irreversibilities occurs. Efficiencies based on the second law of thermodynamics are calculated for each subsystem and compared. Special attention is given to identification and quantification of second law efficiencies and the irreversibilities of various processes and subsystems. The determination of the irreversibilities in each subsystem is particularly important since they are not identified in traditional first law analysis. Furthermore, this study revealed that the combustion was the most important contributor to the system inefficiency representing 36.0% of the total exergy input and 73% of the total exergy destruction. The exergetic efficiency of the trigeneration system is determined to be 51.19%. (C) 2015 Elsevier Ltd. All rights reserved. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-10-01 2018-11-26T16:17:21Z 2018-11-26T16:17:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.energy.2015.06.094 Energy. Oxford: Pergamon-elsevier Science Ltd, v. 90, p. 1411-1419, 2015. 0360-5442 http://hdl.handle.net/11449/160945 10.1016/j.energy.2015.06.094 WOS:000364245300019 WOS000364245300019.pdf 4105781512929103 0000-0003-1111-1526 |
url |
http://dx.doi.org/10.1016/j.energy.2015.06.094 http://hdl.handle.net/11449/160945 |
identifier_str_mv |
Energy. Oxford: Pergamon-elsevier Science Ltd, v. 90, p. 1411-1419, 2015. 0360-5442 10.1016/j.energy.2015.06.094 WOS:000364245300019 WOS000364245300019.pdf 4105781512929103 0000-0003-1111-1526 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Energy 1,990 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1411-1419 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803046274243493888 |