Melon seed drying kinetics described by a diffusion model
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2020 |
| Outros Autores: | , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Research, Society and Development |
| Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/3146 |
Resumo: | The present work aimed to perform the drying kinetics of melon seeds at different drying temperatures and to adjust the diffusion model to the experimental data considering the geometry of an infinite cylinder. The drying was carried out in an air circulation oven at temperatures of 50, 60 and 70 ºC and with an air speed of 1.5 m s-1, based on the data obtained and considering the melon seeds with infinite cylinder geometry. The parameters were calculated by the analytical solution using the diffusion equation. The coefficient of determination showed values above 0.99 and low values of the chi-square function, indicating that the diffusion model presented satisfactory adjustment to the experimental data of the drying kinetics of melon seeds. According to the data obtained in the drying kinetics of melon seeds, it was seen that the effective diffusivity, the heat transfer coefficient and the Biot number showed a strong positive correlation, indicating that the temperature increase was directly proportional to the values of the parameters calculated diffusion rates. The increase in temperature favors mass transfer, decreasing the dynamic equilibrium humidity and drying time, which varied from 1020, 940 and 880 minutes to temperatures of 50, 60 and 70 °C, it appears that for the longest interval greater time variations were the humidity variations inside the seed. |
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Melon seed drying kinetics described by a diffusion modelCinética de secado de semillas de melón descrita por un modelo de difusiónCinética de secagem de sementes de melão descrita por um modelo de difusãoMathematical modelingInfinite cylinderConservationPearson's correlation.Modelado matemáticoCilindro infinitoConservaciónLa correlación de Pearson.Modelagem matemáticaCilindro infinitoConservaçãoCorrelação de Pearson.The present work aimed to perform the drying kinetics of melon seeds at different drying temperatures and to adjust the diffusion model to the experimental data considering the geometry of an infinite cylinder. The drying was carried out in an air circulation oven at temperatures of 50, 60 and 70 ºC and with an air speed of 1.5 m s-1, based on the data obtained and considering the melon seeds with infinite cylinder geometry. The parameters were calculated by the analytical solution using the diffusion equation. The coefficient of determination showed values above 0.99 and low values of the chi-square function, indicating that the diffusion model presented satisfactory adjustment to the experimental data of the drying kinetics of melon seeds. According to the data obtained in the drying kinetics of melon seeds, it was seen that the effective diffusivity, the heat transfer coefficient and the Biot number showed a strong positive correlation, indicating that the temperature increase was directly proportional to the values of the parameters calculated diffusion rates. The increase in temperature favors mass transfer, decreasing the dynamic equilibrium humidity and drying time, which varied from 1020, 940 and 880 minutes to temperatures of 50, 60 and 70 °C, it appears that for the longest interval greater time variations were the humidity variations inside the seed.El presente trabajo tuvo como objetivo realizar la cinética de secado de las semillas de melón a diferentes temperaturas de secado y ajustar el modelo de difusión a los datos experimentales considerando la geometría de un cilindro infinito. El secado se realizó en un horno de circulación de aire a temperaturas de 50, 60 y 70 ºC y con una velocidad del aire de 1.5 m s-1, en base a los datos obtenidos y considerando las semillas de melón con geometría cilíndrica infinita. los parámetros fueron calculados por la solución analítica usando la ecuación de difusión. El coeficiente de determinación mostró valores superiores a 0,99 y valores bajos de la función chi-cuadrado, lo que indica que el modelo de difusión presentó un ajuste satisfactorio a los datos experimentales de la cinética de secado de las semillas de melón. Según los datos obtenidos en la cinética de secado de las semillas de melón, se observó que la difusividad efectiva, el coeficiente de transferencia de calor y el número de Biot mostraron una fuerte correlación positiva, lo que indica que el aumento de temperatura fue directamente proporcional a los valores de los parámetros Tasas de difusión calculadas. El aumento de la temperatura favorece la transferencia de masa, disminuyendo la humedad de equilibrio dinámico y el tiempo de secado, que varió de 1020, 940 y 880 minutos a temperaturas de 50, 60 y 70 °C, parece que durante el intervalo más largo mayores variaciones de tiempo fueron las variaciones de humedad dentro de la semilla.O presente trabalho teve como objetivo realizar a cinética de secagem das sementes de melão em diferentes temperaturas de secagem e ajustar o modelo de difusão aos dados experimentais considerando a geometria de um cilindro infinito. As secagens foram realizadas em estufa de circulação de ar nas temperaturas de 50, 60 e 70 ºC e com velocidade do ar de 1,5 m s-1, a partir dos dados obtidos e considerando as sementes de melão com geometria de um cilindro infinito foram calculados os parâmetros pela solução analítica por meio da equação de difusão. O coeficiente de determinação apresentou valores superiores a 0,99 e baixos valores da função qui-quadrado, indicando que o modelo de difusão apresentou ajuste satisfatório aos dados experimentais da cinética de secagem das sementes de melão. De acordo com os dados obtidos na cinética de secagem das sementes de melão foi visto que a difusividade efetiva, o coeficiente de transferência de calor e o número de Biot mostraram forte correlação positiva, indicando que o aumento da temperatura foi diretamente proporcional aos valores dos parâmetros de difusão calculados. O acréscimo da temperatura favorece a transferência de massa, diminuindo a umidade de equilíbrio dinâmico e o tempo de secagem que variou de 1020, 940 e 880 minutos paras as temperaturas de 50, 60 e 70 °C, visualiza-se que para o maior intervalo de tempo maiores eram as variações de umidade no interior da semente.Research, Society and Development2020-03-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/314610.33448/rsd-v9i5.3146Research, Society and Development; Vol. 9 No. 5; e32953146Research, Society and Development; Vol. 9 Núm. 5; e32953146Research, Society and Development; v. 9 n. 5; e329531462525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/3146/2633Copyright (c) 2020 Raphael Lucas Almeida, Newton Carlos Santos, Tamires dos Santos Pereira, Virginia Mirtes de Alcântara Silva, Victor Herbert de Alcântara Ribeiro, Lucas Rodolfo Inácio da Silva, Fellype Diórgennes Cordeiro Gomes, Flávia Izabely Nunes Moreira, Soares Elias Rodrigues Limainfo:eu-repo/semantics/openAccessAlmeida, Raphael Lucas JacintoSantos, Newton CarlosPereira, Tamires dos SantosSilva, Virginia Mirtes de AlcântaraRibeiro, Victor Herbert de AlcântaraSilva, Lucas Rodolfo Inácio daGomes, Fellype Diorgennes CordeiroMoreira, Flávia Izabely NunesLima, Soares Elias RodriguesEduardo, Raphael da Silva2020-08-20T18:06:36Zoai:ojs.pkp.sfu.ca:article/3146Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:27:27.338776Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
| dc.title.none.fl_str_mv |
Melon seed drying kinetics described by a diffusion model Cinética de secado de semillas de melón descrita por un modelo de difusión Cinética de secagem de sementes de melão descrita por um modelo de difusão |
| title |
Melon seed drying kinetics described by a diffusion model |
| spellingShingle |
Melon seed drying kinetics described by a diffusion model Almeida, Raphael Lucas Jacinto Mathematical modeling Infinite cylinder Conservation Pearson's correlation. Modelado matemático Cilindro infinito Conservación La correlación de Pearson. Modelagem matemática Cilindro infinito Conservação Correlação de Pearson. |
| title_short |
Melon seed drying kinetics described by a diffusion model |
| title_full |
Melon seed drying kinetics described by a diffusion model |
| title_fullStr |
Melon seed drying kinetics described by a diffusion model |
| title_full_unstemmed |
Melon seed drying kinetics described by a diffusion model |
| title_sort |
Melon seed drying kinetics described by a diffusion model |
| author |
Almeida, Raphael Lucas Jacinto |
| author_facet |
Almeida, Raphael Lucas Jacinto Santos, Newton Carlos Pereira, Tamires dos Santos Silva, Virginia Mirtes de Alcântara Ribeiro, Victor Herbert de Alcântara Silva, Lucas Rodolfo Inácio da Gomes, Fellype Diorgennes Cordeiro Moreira, Flávia Izabely Nunes Lima, Soares Elias Rodrigues Eduardo, Raphael da Silva |
| author_role |
author |
| author2 |
Santos, Newton Carlos Pereira, Tamires dos Santos Silva, Virginia Mirtes de Alcântara Ribeiro, Victor Herbert de Alcântara Silva, Lucas Rodolfo Inácio da Gomes, Fellype Diorgennes Cordeiro Moreira, Flávia Izabely Nunes Lima, Soares Elias Rodrigues Eduardo, Raphael da Silva |
| author2_role |
author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Almeida, Raphael Lucas Jacinto Santos, Newton Carlos Pereira, Tamires dos Santos Silva, Virginia Mirtes de Alcântara Ribeiro, Victor Herbert de Alcântara Silva, Lucas Rodolfo Inácio da Gomes, Fellype Diorgennes Cordeiro Moreira, Flávia Izabely Nunes Lima, Soares Elias Rodrigues Eduardo, Raphael da Silva |
| dc.subject.por.fl_str_mv |
Mathematical modeling Infinite cylinder Conservation Pearson's correlation. Modelado matemático Cilindro infinito Conservación La correlación de Pearson. Modelagem matemática Cilindro infinito Conservação Correlação de Pearson. |
| topic |
Mathematical modeling Infinite cylinder Conservation Pearson's correlation. Modelado matemático Cilindro infinito Conservación La correlación de Pearson. Modelagem matemática Cilindro infinito Conservação Correlação de Pearson. |
| description |
The present work aimed to perform the drying kinetics of melon seeds at different drying temperatures and to adjust the diffusion model to the experimental data considering the geometry of an infinite cylinder. The drying was carried out in an air circulation oven at temperatures of 50, 60 and 70 ºC and with an air speed of 1.5 m s-1, based on the data obtained and considering the melon seeds with infinite cylinder geometry. The parameters were calculated by the analytical solution using the diffusion equation. The coefficient of determination showed values above 0.99 and low values of the chi-square function, indicating that the diffusion model presented satisfactory adjustment to the experimental data of the drying kinetics of melon seeds. According to the data obtained in the drying kinetics of melon seeds, it was seen that the effective diffusivity, the heat transfer coefficient and the Biot number showed a strong positive correlation, indicating that the temperature increase was directly proportional to the values of the parameters calculated diffusion rates. The increase in temperature favors mass transfer, decreasing the dynamic equilibrium humidity and drying time, which varied from 1020, 940 and 880 minutes to temperatures of 50, 60 and 70 °C, it appears that for the longest interval greater time variations were the humidity variations inside the seed. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2020-03-27 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
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https://rsdjournal.org/index.php/rsd/article/view/3146 10.33448/rsd-v9i5.3146 |
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https://rsdjournal.org/index.php/rsd/article/view/3146 |
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10.33448/rsd-v9i5.3146 |
| dc.language.iso.fl_str_mv |
por |
| language |
por |
| dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/3146/2633 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Research, Society and Development |
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Research, Society and Development |
| dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 9 No. 5; e32953146 Research, Society and Development; Vol. 9 Núm. 5; e32953146 Research, Society and Development; v. 9 n. 5; e32953146 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
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Universidade Federal de Itajubá (UNIFEI) |
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UNIFEI |
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UNIFEI |
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Research, Society and Development |
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Research, Society and Development |
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Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
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rsd.articles@gmail.com |
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1797052647030652928 |