Determination of the volumetric shrinkage in jatropha seeds during drying
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidade Estadual de Maringá
2012
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| _version_ | 1876486102652551168 |
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| author | Valdiney Cambuy Siqueira |
| author_facet | Valdiney Cambuy Siqueira |
| contents | Determination of the volumetric shrinkage in jatropha seeds during drying Valdiney Cambuy Siqueira Osvaldo Resende Tarcísio Honório Chaves Agrociencias moisture content Polynomial model Mathematical models he objective of this study was to determ ine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm -1 (kilogram of water per kilogram of dry matter) were dr ied in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm -1 . The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric di ameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation , where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions. 2012 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303026602002 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.3 Vol.34 |
| format | Artículo científico |
| id | redalyc_303026602002 |
| institution | Redalyc |
| language | en |
| publishDate | 2012 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Determination of the volumetric shrinkage in jatropha seeds during drying Valdiney Cambuy Siqueira Agrociencias moisture content Polynomial model Mathematical models Determination of the volumetric shrinkage in jatropha seeds during drying Valdiney Cambuy Siqueira Osvaldo Resende Tarcísio Honório Chaves Agrociencias moisture content Polynomial model Mathematical models he objective of this study was to determ ine the geometric diameter of volumetric shrinkage in Jatropha seeds subjected to drying under six air conditions and to fit different mathematical models to the experimental values. Seeds with an approximate initial moisture content of 0.61 kgw kgdm -1 (kilogram of water per kilogram of dry matter) were dr ied in a convection oven at temperatures of 36, 45, 60, 75, 90, and 105°C until they reached a moisture content of 0.11 ± 0.006 kgw kgdm -1 . The experimental data were fitted to five mathematical models used to represent volumetric shrinkage in agricultural products. The models were analyzed using the coefficient of determination, chi-square, mean relative error, mean estimated error, and residual distribution. Geometric di ameter data were subjected to regression analysis by adopting a 1% level of significance. It was concluded that moisture content and drying temperature influence volumetric shrinkage in Jatropha seeds, a phenomenon satisfactorily described by the Polynomial equation , where the geometric diameter linearly decreased with a reduction of the moisture content, regardless of the drying conditions. 2012 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303026602002 en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.3 Vol.34 |
| title | Determination of the volumetric shrinkage in jatropha seeds during drying |
| topic | Agrociencias moisture content Polynomial model Mathematical models |
| url | https://www.redalyc.org/articulo.oa?id=303026602002 |