Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/4968 |
Resumo: | Nowadays, there is a focus on finding sustainable energy sources, as well as, alternatives to rationalize the use of electrical energy. In this sense, the employment of Earth-Air Heat Exchangers (EAHE) is one technique which allows the reduction of energy consumption for climatization of buildings environments. The present study shows the evaluation of a numerical method to estimate the ground thermal potential, allowing its applicability for future thermal design of EAHE. The soil domain is considered two-dimensional and a transient solution for the thermal behavior of the soil is obtained. Moreover, a soil surface temperature distribution equation based on experimental data is employed to define the domain boundary conditions. The simulations are performed with a numerical method based on the finite volume method, more precisely using the software FLUENT®. The results presented an excellent agreement with analytical solutions showing the validity and effectiveness of the computational model for prediction of the soil behavior. The numerical results were also confronted with experimental ones predicted into literature and show a good agreement, with a deviation lower than 14%. The main difference is attributed to the duct presence which is taken into account only for the experimental study. |
id |
FURG_e942c67b8f5a4a5c825610a126dd2c6e |
---|---|
oai_identifier_str |
oai:repositorio.furg.br:1/4968 |
network_acronym_str |
FURG |
network_name_str |
Repositório Institucional da FURG (RI FURG) |
repository_id_str |
|
spelling |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiationGround thermal potentialComputer fluid dynamicsEarth-air heat exchangersComputational modelingFLUENTNowadays, there is a focus on finding sustainable energy sources, as well as, alternatives to rationalize the use of electrical energy. In this sense, the employment of Earth-Air Heat Exchangers (EAHE) is one technique which allows the reduction of energy consumption for climatization of buildings environments. The present study shows the evaluation of a numerical method to estimate the ground thermal potential, allowing its applicability for future thermal design of EAHE. The soil domain is considered two-dimensional and a transient solution for the thermal behavior of the soil is obtained. Moreover, a soil surface temperature distribution equation based on experimental data is employed to define the domain boundary conditions. The simulations are performed with a numerical method based on the finite volume method, more precisely using the software FLUENT®. The results presented an excellent agreement with analytical solutions showing the validity and effectiveness of the computational model for prediction of the soil behavior. The numerical results were also confronted with experimental ones predicted into literature and show a good agreement, with a deviation lower than 14%. The main difference is attributed to the duct presence which is taken into account only for the experimental study.2015-05-31T21:04:10Z2015-05-31T21:04:10Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfBRUM, Ruth da Silva et al. Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation. Engenharia Térmica (Thermal Engineering), v, 12, n. 2, p. 63-68, 2013. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/21/artigos/278-2013.pdf>. Acesso em: 22 maio 2015.1676-1790http://repositorio.furg.br/handle/1/4968engBrum, Ruth da SilvaIsoldi, Liércio AndréSantos, Elizaldo Domingues dosVaz, JoaquimRocha, Luiz Alberto Oliveirainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-05-31T21:04:10Zoai:repositorio.furg.br:1/4968Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-05-31T21:04:10Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
title |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
spellingShingle |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation Brum, Ruth da Silva Ground thermal potential Computer fluid dynamics Earth-air heat exchangers Computational modeling FLUENT |
title_short |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
title_full |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
title_fullStr |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
title_full_unstemmed |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
title_sort |
Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation |
author |
Brum, Ruth da Silva |
author_facet |
Brum, Ruth da Silva Isoldi, Liércio André Santos, Elizaldo Domingues dos Vaz, Joaquim Rocha, Luiz Alberto Oliveira |
author_role |
author |
author2 |
Isoldi, Liércio André Santos, Elizaldo Domingues dos Vaz, Joaquim Rocha, Luiz Alberto Oliveira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Brum, Ruth da Silva Isoldi, Liércio André Santos, Elizaldo Domingues dos Vaz, Joaquim Rocha, Luiz Alberto Oliveira |
dc.subject.por.fl_str_mv |
Ground thermal potential Computer fluid dynamics Earth-air heat exchangers Computational modeling FLUENT |
topic |
Ground thermal potential Computer fluid dynamics Earth-air heat exchangers Computational modeling FLUENT |
description |
Nowadays, there is a focus on finding sustainable energy sources, as well as, alternatives to rationalize the use of electrical energy. In this sense, the employment of Earth-Air Heat Exchangers (EAHE) is one technique which allows the reduction of energy consumption for climatization of buildings environments. The present study shows the evaluation of a numerical method to estimate the ground thermal potential, allowing its applicability for future thermal design of EAHE. The soil domain is considered two-dimensional and a transient solution for the thermal behavior of the soil is obtained. Moreover, a soil surface temperature distribution equation based on experimental data is employed to define the domain boundary conditions. The simulations are performed with a numerical method based on the finite volume method, more precisely using the software FLUENT®. The results presented an excellent agreement with analytical solutions showing the validity and effectiveness of the computational model for prediction of the soil behavior. The numerical results were also confronted with experimental ones predicted into literature and show a good agreement, with a deviation lower than 14%. The main difference is attributed to the duct presence which is taken into account only for the experimental study. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2015-05-31T21:04:10Z 2015-05-31T21:04:10Z |
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 |
BRUM, Ruth da Silva et al. Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation. Engenharia Térmica (Thermal Engineering), v, 12, n. 2, p. 63-68, 2013. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/21/artigos/278-2013.pdf>. Acesso em: 22 maio 2015. 1676-1790 http://repositorio.furg.br/handle/1/4968 |
identifier_str_mv |
BRUM, Ruth da Silva et al. Two-dimensional computational modeling of the soil thermal behavior due to the incidence of solar radiation. Engenharia Térmica (Thermal Engineering), v, 12, n. 2, p. 63-68, 2013. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/21/artigos/278-2013.pdf>. Acesso em: 22 maio 2015. 1676-1790 |
url |
http://repositorio.furg.br/handle/1/4968 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
_version_ |
1807384356987076608 |