Academic Journal
View in EDS

Mathematical modeling of the drying process of corn ears.

Bibliographic Details
Title: Mathematical modeling of the drying process of corn ears.
Alternate Title: Modelagem matemática do processo de secagem de espigas de milho.
Authors: Corrêa, Paulo Cesar1, Botelho, Fernando Mendes1 fernando•eaa@yahoo.com.br, Oliveira, Gabriel Henrique Horta1, Goneli, André Luis Duarte1, Resende, Osvaldo1, de Carvalho Campos, Sílvia1
Source: Acta Scientiarum: Agronomy. Oct-Dec2011, Vol. 33 Issue 4, p575-581. 7p.
Subject Terms: *CORN drying, *SOIL moisture, *THERMODYNAMICS, *MATHEMATICAL models, CORN growth
Abstract (English): The objective of this work was to study and model the drying process of corn ears at different air temperatures. Thermodynamic properties associated with the drying process of this product were also determined. Corn ears with initial moisture content of 0.45 dry basis (kgwkgdm-1) were dried until they reached a final moisture content of 0.12 (kgwkgdm-1) at temperatures of 45, 55 and 65°C. Traditional models used to describe the drying process of several agricultural products were employed to fit the observed data of the drying process of corn ears. The effective diffusion coefficient (Def) was determined by means of an analytical solution of Fick's second law. It was concluded that the Logarithmic model was the one that best fit the observed data representing the drying process. Def values increased with temperature increases, ranging from 5.490 x 10-10 to 1.163 x 10-9 m² s-1. Based on the dependence of the drying constant of the Logarithmic model with temperature, thermodynamic properties were determined, concluding that the drying kinetics variation is dependent on the energy contributions of the surrounding environment. [ABSTRACT FROM AUTHOR]
Abstract (Portuguese): Objetivou-se com este trabalho estudar e modelar o processo de secagem do milho em espiga para diferentes condições de temperatura do ar. Buscou-se, ainda, determinar algumas relações termodinâmicas associadas à secagem deste produto, para a faixa de temperatura utilizada. Utilizaram-se espigas de milho com teor de água inicial de 0,45 (b.s.), que foram secas até um teor de água final de 0,12 (b.s.), nas temperaturas de 45, 55 e 65°C. Aos dados observados da secagem das espigas de milho ajustaram-se diferentes modelos tradicionalmente utilizados para descrever o processo de secagem de diversos produtos agrícolas. O coeficiente de difusão efetivo (Def) foi determinado por meio da solução analítica para a segunda lei de Fick. Conclui-se que o modelo Logarithmic foi o que melhor se ajustou aos dados observados, sendo o indicado para representar o processo de secagem do milho em espiga. O Def aumentou com a elevação da temperatura, variando de 5,490 × 10-10 a 1,163 × 10-10 m² s-1. Com base na dependência da constante de secagem do modelo Logarithmic com a temperatura, determinaram-se alguns parâmetros termodinâmicos, a partir do qual foi possível verificar que a variação da cinética de secagem é dependente de contribuições de energia do meio. [ABSTRACT FROM AUTHOR]
Copyright of Acta Scientiarum: Agronomy is the property of Universidade Estadual de Maringa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Academic Search Complete
FullText Links:
  – Type: pdflink
Text:
  Availability: 0
CustomLinks:
  – Url: https://resolver.ebsco.com/c/xy5jbn/result?sid=EBSCO:a9h&genre=article&issn=16799275&ISBN=&volume=33&issue=4&date=20111001&spage=575&pages=575-581&title=Acta Scientiarum: Agronomy&atitle=Mathematical%20modeling%20of%20the%20drying%20process%20of%20corn%20ears.&aulast=Corr%C3%AAa%2C%20Paulo%20Cesar&id=DOI:10.4025/actasciagron.v33i4.7079
    Name: Full Text Finder (for New FTF UI) (s8985755)
    Category: fullText
    Text: Find It @ SCU Libraries
    MouseOverText: Find It @ SCU Libraries
Header DbId: a9h
DbLabel: Academic Search Complete
An: 70496105
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Mathematical modeling of the drying process of corn ears.
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Modelagem matemática do processo de secagem de espigas de milho.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Corrêa%2C+Paulo+Cesar%22">Corrêa, Paulo Cesar</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Botelho%2C+Fernando+Mendes%22">Botelho, Fernando Mendes</searchLink><relatesTo>1</relatesTo><i> fernando•eaa@yahoo.com.br</i><br /><searchLink fieldCode="AR" term="%22Oliveira%2C+Gabriel+Henrique+Horta%22">Oliveira, Gabriel Henrique Horta</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Goneli%2C+André+Luis+Duarte%22">Goneli, André Luis Duarte</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Resende%2C+Osvaldo%22">Resende, Osvaldo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22de+Carvalho+Campos%2C+Sílvia%22">de Carvalho Campos, Sílvia</searchLink><relatesTo>1</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Acta+Scientiarum%3A+Agronomy%22">Acta Scientiarum: Agronomy</searchLink>. Oct-Dec2011, Vol. 33 Issue 4, p575-581. 7p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22CORN+drying%22">CORN drying</searchLink><br />*<searchLink fieldCode="DE" term="%22SOIL+moisture%22">SOIL moisture</searchLink><br />*<searchLink fieldCode="DE" term="%22THERMODYNAMICS%22">THERMODYNAMICS</searchLink><br />*<searchLink fieldCode="DE" term="%22MATHEMATICAL+models%22">MATHEMATICAL models</searchLink><br /><searchLink fieldCode="DE" term="%22CORN+growth%22">CORN growth</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: The objective of this work was to study and model the drying process of corn ears at different air temperatures. Thermodynamic properties associated with the drying process of this product were also determined. Corn ears with initial moisture content of 0.45 dry basis (kgwkgdm-1) were dried until they reached a final moisture content of 0.12 (kgwkgdm-1) at temperatures of 45, 55 and 65°C. Traditional models used to describe the drying process of several agricultural products were employed to fit the observed data of the drying process of corn ears. The effective diffusion coefficient (Def) was determined by means of an analytical solution of Fick's second law. It was concluded that the Logarithmic model was the one that best fit the observed data representing the drying process. Def values increased with temperature increases, ranging from 5.490 x 10-10 to 1.163 x 10-9 m² s-1. Based on the dependence of the drying constant of the Logarithmic model with temperature, thermodynamic properties were determined, concluding that the drying kinetics variation is dependent on the energy contributions of the surrounding environment. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Portuguese)
  Group: Ab
  Data: Objetivou-se com este trabalho estudar e modelar o processo de secagem do milho em espiga para diferentes condições de temperatura do ar. Buscou-se, ainda, determinar algumas relações termodinâmicas associadas à secagem deste produto, para a faixa de temperatura utilizada. Utilizaram-se espigas de milho com teor de água inicial de 0,45 (b.s.), que foram secas até um teor de água final de 0,12 (b.s.), nas temperaturas de 45, 55 e 65°C. Aos dados observados da secagem das espigas de milho ajustaram-se diferentes modelos tradicionalmente utilizados para descrever o processo de secagem de diversos produtos agrícolas. O coeficiente de difusão efetivo (Def) foi determinado por meio da solução analítica para a segunda lei de Fick. Conclui-se que o modelo Logarithmic foi o que melhor se ajustou aos dados observados, sendo o indicado para representar o processo de secagem do milho em espiga. O Def aumentou com a elevação da temperatura, variando de 5,490 × 10-10 a 1,163 × 10-10 m² s-1. Com base na dependência da constante de secagem do modelo Logarithmic com a temperatura, determinaram-se alguns parâmetros termodinâmicos, a partir do qual foi possível verificar que a variação da cinética de secagem é dependente de contribuições de energia do meio. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Acta Scientiarum: Agronomy is the property of Universidade Estadual de Maringa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://login.libproxy.scu.edu/login?url=https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&scope=site&db=a9h&AN=70496105
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.4025/actasciagron.v33i4.7079
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 575
    Subjects:
      – SubjectFull: CORN drying
        Type: general
      – SubjectFull: SOIL moisture
        Type: general
      – SubjectFull: THERMODYNAMICS
        Type: general
      – SubjectFull: MATHEMATICAL models
        Type: general
      – SubjectFull: CORN growth
        Type: general
    Titles:
      – TitleFull: Mathematical modeling of the drying process of corn ears.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Corrêa, Paulo Cesar
      – PersonEntity:
          Name:
            NameFull: Botelho, Fernando Mendes
      – PersonEntity:
          Name:
            NameFull: Oliveira, Gabriel Henrique Horta
      – PersonEntity:
          Name:
            NameFull: Goneli, André Luis Duarte
      – PersonEntity:
          Name:
            NameFull: Resende, Osvaldo
      – PersonEntity:
          Name:
            NameFull: de Carvalho Campos, Sílvia
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 10
              Text: Oct-Dec2011
              Type: published
              Y: 2011
          Identifiers:
            – Type: issn-print
              Value: 16799275
          Numbering:
            – Type: volume
              Value: 33
            – Type: issue
              Value: 4
          Titles:
            – TitleFull: Acta Scientiarum: Agronomy
              Type: main
ResultId 1