Thermal environment of table grape packing houses in the São Francisco Valley.
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1070927 |
Resumo: | The aim of this study was to characterize the thermal environment of the sorting and packing sectors of small, medium and large packing houses in the São Francisco Valley, Northeast of Brazil. Micrometeorological data were monitored every 15 minutes for 20 days during winter 2014 and summer 2015. The parameters evaluated were air temperature (oC), relative humidity (%) and radiant thermal load, RTL,(W/m2). External environmental data were obtained from weather stations close to the packing houses. The data obtained show that packing houses minimum and maximum temperatures were reached at 6am and 3pm, respectively, during winter and summer. Both seasons had air temperatures above 20°C, relative humidity below 90% and radiant thermal load above 450 W/m2. The construction materials that had the highest energy transmissions were the roofs. Metal roofs had the worst thermal conditioning, resulting in maximum internal air temperatures of 32.7°C and minimum relative humidity of 40.9% at 3pm, during summer. According to the results, thermal environments of sorting and packing sectors proved to be inadequate for processing table grapes, mainly during summer. These packing houses should be modified to reach the optimal thermal environment, considering the regional climatic conditions. |
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Thermal environment of table grape packing houses in the São Francisco Valley.Uva de mesaAmbiente térmicosInstalações agrícolasVale de são franciscoAgricultural facilitiesThermal environmentUvaVitis ViniferaGrapesThe aim of this study was to characterize the thermal environment of the sorting and packing sectors of small, medium and large packing houses in the São Francisco Valley, Northeast of Brazil. Micrometeorological data were monitored every 15 minutes for 20 days during winter 2014 and summer 2015. The parameters evaluated were air temperature (oC), relative humidity (%) and radiant thermal load, RTL,(W/m2). External environmental data were obtained from weather stations close to the packing houses. The data obtained show that packing houses minimum and maximum temperatures were reached at 6am and 3pm, respectively, during winter and summer. Both seasons had air temperatures above 20°C, relative humidity below 90% and radiant thermal load above 450 W/m2. The construction materials that had the highest energy transmissions were the roofs. Metal roofs had the worst thermal conditioning, resulting in maximum internal air temperatures of 32.7°C and minimum relative humidity of 40.9% at 3pm, during summer. According to the results, thermal environments of sorting and packing sectors proved to be inadequate for processing table grapes, mainly during summer. These packing houses should be modified to reach the optimal thermal environment, considering the regional climatic conditions.OSVALDO VASCONCELOS, UNIVASF; SÍLVIA HELENA NOGUEIRA TURCO, UNIVASF; CRISTIANE DACANAL, UNIVASF; SIMONE LUZ, UNIVASF; SERGIO TONETTO DE FREITAS, CPATSA.VASCONCELOS, O.TURCO, S. H. N.DACANAL, C.LUZ, S.FREITAS, S. T. de2017-06-15T13:12:10Z2017-06-15T13:12:10Z2017-06-1420172018-01-24T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleEngenharia Agrícola, Jaboticabal, v. 37, n. 1, p. 35-45, jan./fev. 2017.1809-4430http://www.alice.cnptia.embrapa.br/alice/handle/doc/107092710.1590/1809-4430-Eng.Agric.v37n1p35-45/2017enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T04:32:28Zoai:www.alice.cnptia.embrapa.br:doc/1070927Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T04:32:28falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T04:32:28Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Thermal environment of table grape packing houses in the São Francisco Valley. |
title |
Thermal environment of table grape packing houses in the São Francisco Valley. |
spellingShingle |
Thermal environment of table grape packing houses in the São Francisco Valley. VASCONCELOS, O. Uva de mesa Ambiente térmicos Instalações agrícolas Vale de são francisco Agricultural facilities Thermal environment Uva Vitis Vinifera Grapes |
title_short |
Thermal environment of table grape packing houses in the São Francisco Valley. |
title_full |
Thermal environment of table grape packing houses in the São Francisco Valley. |
title_fullStr |
Thermal environment of table grape packing houses in the São Francisco Valley. |
title_full_unstemmed |
Thermal environment of table grape packing houses in the São Francisco Valley. |
title_sort |
Thermal environment of table grape packing houses in the São Francisco Valley. |
author |
VASCONCELOS, O. |
author_facet |
VASCONCELOS, O. TURCO, S. H. N. DACANAL, C. LUZ, S. FREITAS, S. T. de |
author_role |
author |
author2 |
TURCO, S. H. N. DACANAL, C. LUZ, S. FREITAS, S. T. de |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
OSVALDO VASCONCELOS, UNIVASF; SÍLVIA HELENA NOGUEIRA TURCO, UNIVASF; CRISTIANE DACANAL, UNIVASF; SIMONE LUZ, UNIVASF; SERGIO TONETTO DE FREITAS, CPATSA. |
dc.contributor.author.fl_str_mv |
VASCONCELOS, O. TURCO, S. H. N. DACANAL, C. LUZ, S. FREITAS, S. T. de |
dc.subject.por.fl_str_mv |
Uva de mesa Ambiente térmicos Instalações agrícolas Vale de são francisco Agricultural facilities Thermal environment Uva Vitis Vinifera Grapes |
topic |
Uva de mesa Ambiente térmicos Instalações agrícolas Vale de são francisco Agricultural facilities Thermal environment Uva Vitis Vinifera Grapes |
description |
The aim of this study was to characterize the thermal environment of the sorting and packing sectors of small, medium and large packing houses in the São Francisco Valley, Northeast of Brazil. Micrometeorological data were monitored every 15 minutes for 20 days during winter 2014 and summer 2015. The parameters evaluated were air temperature (oC), relative humidity (%) and radiant thermal load, RTL,(W/m2). External environmental data were obtained from weather stations close to the packing houses. The data obtained show that packing houses minimum and maximum temperatures were reached at 6am and 3pm, respectively, during winter and summer. Both seasons had air temperatures above 20°C, relative humidity below 90% and radiant thermal load above 450 W/m2. The construction materials that had the highest energy transmissions were the roofs. Metal roofs had the worst thermal conditioning, resulting in maximum internal air temperatures of 32.7°C and minimum relative humidity of 40.9% at 3pm, during summer. According to the results, thermal environments of sorting and packing sectors proved to be inadequate for processing table grapes, mainly during summer. These packing houses should be modified to reach the optimal thermal environment, considering the regional climatic conditions. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-15T13:12:10Z 2017-06-15T13:12:10Z 2017-06-14 2017 2018-01-24T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Engenharia Agrícola, Jaboticabal, v. 37, n. 1, p. 35-45, jan./fev. 2017. 1809-4430 http://www.alice.cnptia.embrapa.br/alice/handle/doc/1070927 10.1590/1809-4430-Eng.Agric.v37n1p35-45/2017 |
identifier_str_mv |
Engenharia Agrícola, Jaboticabal, v. 37, n. 1, p. 35-45, jan./fev. 2017. 1809-4430 10.1590/1809-4430-Eng.Agric.v37n1p35-45/2017 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1070927 |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503438156955648 |