REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS

Detalhes bibliográficos
Autor(a) principal: Lacerda, J. F.
Data de Publicação: 2011
Outros Autores: Gasche, J. L. [UNESP], Parise, J. F. L. [UNESP], Arantes, D. M. [UNESP], INT INST REFRIGERAT
Tipo de documento: Artigo de conferência
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/194750
Resumo: The suction muffler of hermetic reciprocating compressors is installed in order to attenuate the noise generated by the gas pulsation of the flow through the suction valve. However, the installation of the suction muffler affects the operation of the compressor owing to gas pressure drop, which causes volumetric and energetic efficiency loss due to the gas specific volume augmentation. Therefore, there is a compromise between sound attenuation and pressure drop increase, which has to be taken into account by compressor designers. In this work, it is presented a numerical solution of the flow through a suction muffler in order to analyze the pressure field and point out the main contributions to the overall pressure drop of the flow. A commercial CFD code was used to perform the numerical simulations and the results were validated by using experimental data. After analyzing the pressure field, the geometry of the muffler was modified intending to decrease the flow pressure drop. The geometric modification produced a 28% reduction on the overall pressure drop, without influencing the sound attenuation.
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spelling REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORSThe suction muffler of hermetic reciprocating compressors is installed in order to attenuate the noise generated by the gas pulsation of the flow through the suction valve. However, the installation of the suction muffler affects the operation of the compressor owing to gas pressure drop, which causes volumetric and energetic efficiency loss due to the gas specific volume augmentation. Therefore, there is a compromise between sound attenuation and pressure drop increase, which has to be taken into account by compressor designers. In this work, it is presented a numerical solution of the flow through a suction muffler in order to analyze the pressure field and point out the main contributions to the overall pressure drop of the flow. A commercial CFD code was used to perform the numerical simulations and the results were validated by using experimental data. After analyzing the pressure field, the geometry of the muffler was modified intending to decrease the flow pressure drop. The geometric modification produced a 28% reduction on the overall pressure drop, without influencing the sound attenuation.Tecumseh do BrasilTecumseh Brasil Ltda, R Cel JA de Oliveira Salles 478, BR-13570820 Sao Carlos, SP, BrazilUnesp Univ, Dept Mech Engn, BR-15385 Sao Carlos, SP, BrazilUnesp Univ, Dept Mech Engn, BR-15385 Sao Carlos, SP, BrazilInt Inst RefrigerationTecumseh Brasil LtdaUniversidade Estadual Paulista (Unesp)Lacerda, J. F.Gasche, J. L. [UNESP]Parise, J. F. L. [UNESP]Arantes, D. M. [UNESP]INT INST REFRIGERAT2020-12-10T16:36:26Z2020-12-10T16:36:26Z2011-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject1438-+23rd Iir International Congress Of Refrigeration. Paris: Int Inst Refrigeration, v. 23, p. 1438-+, 2011.1025-9031http://hdl.handle.net/11449/194750WOS:000310485800190Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng23rd Iir International Congress Of Refrigerationinfo:eu-repo/semantics/openAccess2021-10-22T20:28:54Zoai:repositorio.unesp.br:11449/194750Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:57:06.048460Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
title REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
spellingShingle REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
Lacerda, J. F.
title_short REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
title_full REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
title_fullStr REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
title_full_unstemmed REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
title_sort REDUCING THE GAS PRESSURE DROP IN SUCTION MUFFLERS OF HERMETIC RECIPROCATING COMPRESSORS
author Lacerda, J. F.
author_facet Lacerda, J. F.
Gasche, J. L. [UNESP]
Parise, J. F. L. [UNESP]
Arantes, D. M. [UNESP]
INT INST REFRIGERAT
author_role author
author2 Gasche, J. L. [UNESP]
Parise, J. F. L. [UNESP]
Arantes, D. M. [UNESP]
INT INST REFRIGERAT
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Tecumseh Brasil Ltda
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Lacerda, J. F.
Gasche, J. L. [UNESP]
Parise, J. F. L. [UNESP]
Arantes, D. M. [UNESP]
INT INST REFRIGERAT
description The suction muffler of hermetic reciprocating compressors is installed in order to attenuate the noise generated by the gas pulsation of the flow through the suction valve. However, the installation of the suction muffler affects the operation of the compressor owing to gas pressure drop, which causes volumetric and energetic efficiency loss due to the gas specific volume augmentation. Therefore, there is a compromise between sound attenuation and pressure drop increase, which has to be taken into account by compressor designers. In this work, it is presented a numerical solution of the flow through a suction muffler in order to analyze the pressure field and point out the main contributions to the overall pressure drop of the flow. A commercial CFD code was used to perform the numerical simulations and the results were validated by using experimental data. After analyzing the pressure field, the geometry of the muffler was modified intending to decrease the flow pressure drop. The geometric modification produced a 28% reduction on the overall pressure drop, without influencing the sound attenuation.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
2020-12-10T16:36:26Z
2020-12-10T16:36:26Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv 23rd Iir International Congress Of Refrigeration. Paris: Int Inst Refrigeration, v. 23, p. 1438-+, 2011.
1025-9031
http://hdl.handle.net/11449/194750
WOS:000310485800190
identifier_str_mv 23rd Iir International Congress Of Refrigeration. Paris: Int Inst Refrigeration, v. 23, p. 1438-+, 2011.
1025-9031
WOS:000310485800190
url http://hdl.handle.net/11449/194750
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 23rd Iir International Congress Of Refrigeration
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1438-+
dc.publisher.none.fl_str_mv Int Inst Refrigeration
publisher.none.fl_str_mv Int Inst Refrigeration
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
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