Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904 |
Resumo: | The ROBUR® absorption refrigeration system (ARS), model ACF60, with a capacity of 17.5 kW, is tested, modeled and simulated in the steady state. To simulate the thermal load a heating system with secondary coolant was used, in which a programmable logic controller (PLC) kept the inlet temperature EVA at around 285.15 K. The mathematical model used was based on balancing the mass, energy and ammonia concentrations and completed by closing equations such as, Newton's cooling equation. The mathematical model was implemented using the Engineering Equation Solver – EES®. The results obtained after modeling and a numerical permanent simulation are studied using the Duhring diagram. Potential points of internal heat recovery are visualized, and by using graphs of the binary mixture, it is possible to identify the thermodynamic states of all monitored points. The data obtained in the numerical simulation of the ARS was compared with data acquired in the actual tests of the ARS with the ROBUR® apparatus. |
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Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixtureair conditioningabsorption systemsimulationexperimental resultsCOP.Engenharia MecânicaThe ROBUR® absorption refrigeration system (ARS), model ACF60, with a capacity of 17.5 kW, is tested, modeled and simulated in the steady state. To simulate the thermal load a heating system with secondary coolant was used, in which a programmable logic controller (PLC) kept the inlet temperature EVA at around 285.15 K. The mathematical model used was based on balancing the mass, energy and ammonia concentrations and completed by closing equations such as, Newton's cooling equation. The mathematical model was implemented using the Engineering Equation Solver – EES®. The results obtained after modeling and a numerical permanent simulation are studied using the Duhring diagram. Potential points of internal heat recovery are visualized, and by using graphs of the binary mixture, it is possible to identify the thermodynamic states of all monitored points. The data obtained in the numerical simulation of the ARS was compared with data acquired in the actual tests of the ARS with the ROBUR® apparatus. Universidade Estadual De Maringá2017-09-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionTheoretical/experimental analysisapplication/pdfapplication/ziphttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/2990410.4025/actascitechnol.v39i4.29904Acta Scientiarum. Technology; Vol 39 No 4 (2017); 439-448Acta Scientiarum. Technology; v. 39 n. 4 (2017); 439-4481806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904/751375144361Copyright (c) 2017 Acta Scientiarum. Technologyinfo:eu-repo/semantics/openAccessAraújo, Josegil Jorge deSantos, Carlos Antonio Cabral dosHolanda, Carlos Almir deDuarte, João Batista FurlanOchoa, Alvaro Antonio VillaDutra, José Carlos Charamba2017-09-15T16:42:09Zoai:periodicos.uem.br/ojs:article/29904Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2017-09-15T16:42:09Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
title |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
spellingShingle |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture Araújo, Josegil Jorge de air conditioning absorption system simulation experimental results COP. Engenharia Mecânica |
title_short |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
title_full |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
title_fullStr |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
title_full_unstemmed |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
title_sort |
Energetic analysis of a commercial absorption refrigeration unit using an ammonia-water mixture |
author |
Araújo, Josegil Jorge de |
author_facet |
Araújo, Josegil Jorge de Santos, Carlos Antonio Cabral dos Holanda, Carlos Almir de Duarte, João Batista Furlan Ochoa, Alvaro Antonio Villa Dutra, José Carlos Charamba |
author_role |
author |
author2 |
Santos, Carlos Antonio Cabral dos Holanda, Carlos Almir de Duarte, João Batista Furlan Ochoa, Alvaro Antonio Villa Dutra, José Carlos Charamba |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Araújo, Josegil Jorge de Santos, Carlos Antonio Cabral dos Holanda, Carlos Almir de Duarte, João Batista Furlan Ochoa, Alvaro Antonio Villa Dutra, José Carlos Charamba |
dc.subject.por.fl_str_mv |
air conditioning absorption system simulation experimental results COP. Engenharia Mecânica |
topic |
air conditioning absorption system simulation experimental results COP. Engenharia Mecânica |
description |
The ROBUR® absorption refrigeration system (ARS), model ACF60, with a capacity of 17.5 kW, is tested, modeled and simulated in the steady state. To simulate the thermal load a heating system with secondary coolant was used, in which a programmable logic controller (PLC) kept the inlet temperature EVA at around 285.15 K. The mathematical model used was based on balancing the mass, energy and ammonia concentrations and completed by closing equations such as, Newton's cooling equation. The mathematical model was implemented using the Engineering Equation Solver – EES®. The results obtained after modeling and a numerical permanent simulation are studied using the Duhring diagram. Potential points of internal heat recovery are visualized, and by using graphs of the binary mixture, it is possible to identify the thermodynamic states of all monitored points. The data obtained in the numerical simulation of the ARS was compared with data acquired in the actual tests of the ARS with the ROBUR® apparatus. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Theoretical/experimental analysis |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904 10.4025/actascitechnol.v39i4.29904 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904 |
identifier_str_mv |
10.4025/actascitechnol.v39i4.29904 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/29904/751375144361 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2017 Acta Scientiarum. Technology info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2017 Acta Scientiarum. Technology |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/zip |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 39 No 4 (2017); 439-448 Acta Scientiarum. Technology; v. 39 n. 4 (2017); 439-448 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315336316583936 |