Thermal environment of table grape packing houses in the São Francisco Valley.

Detalhes bibliográficos
Autor(a) principal: VASCONCELOS, O.
Data de Publicação: 2017
Outros Autores: TURCO, S. H. N., DACANAL, C., LUZ, S., FREITAS, S. T. de
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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spelling 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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