Mathematical modeling of the conventional drying of wood
The kiln-drying of lumber is a very important stage into wood-based products processing. During drying process, some defects are produced due to the variable moisture and heat distribution inside of material. In order to optimize the kiln-drying of lumber is important to take into account the transp...
| Egile nagusia: | |
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| Formatua: | Online |
| Hizkuntza: | spa |
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Instituto de Ecología, A.C.
2016
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| Sarrera elektronikoa: | https://myb.ojs.inecol.mx/index.php/myb/article/view/1198 |
| _version_ | 1799769242199916544 |
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| author | Sandoval-Torres, Sadoth |
| author_facet | Sandoval-Torres, Sadoth |
| author_sort | Sandoval-Torres, Sadoth |
| collection | MYB |
| description | The kiln-drying of lumber is a very important stage into wood-based products processing. During drying process, some defects are produced due to the variable moisture and heat distribution inside of material. In order to optimize the kiln-drying of lumber is important to take into account the transport phenomena controlling the heat and mass transfer in the solid. Due to its physical properties, the hardwoods are a very important raw material, since its hardness, colour, dimensional stability and high resistance to weathering give them a very important commercial value. At the last years, the drying process modelling has been an effective tool to optimize such operations; these models associates energy, mass and momentum balances, which can be expressed as differential equations that are numerically solved to obtain particularly solution for each problem. In this work, the heat and mass transfer mechanisms presents in kiln-drying of lumber are explained, heat and mass transport equations are written, and finally moisture and temperature profiles for European Oakwood Quercus pedoncula during kiln-drying are presented. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1198 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2016 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-11982022-11-30T00:32:59Z Mathematical modeling of the conventional drying of wood Modelación matemática del secado convencional de madera Sandoval-Torres, Sadoth Physics of Drying Heat and Mass transfer Hardwood Física de Secado Transferencia de masa y calor Madera latifoliada The kiln-drying of lumber is a very important stage into wood-based products processing. During drying process, some defects are produced due to the variable moisture and heat distribution inside of material. In order to optimize the kiln-drying of lumber is important to take into account the transport phenomena controlling the heat and mass transfer in the solid. Due to its physical properties, the hardwoods are a very important raw material, since its hardness, colour, dimensional stability and high resistance to weathering give them a very important commercial value. At the last years, the drying process modelling has been an effective tool to optimize such operations; these models associates energy, mass and momentum balances, which can be expressed as differential equations that are numerically solved to obtain particularly solution for each problem. In this work, the heat and mass transfer mechanisms presents in kiln-drying of lumber are explained, heat and mass transport equations are written, and finally moisture and temperature profiles for European Oakwood Quercus pedoncula during kiln-drying are presented. La operación de secado de madera es una etapa crucial dentro del procesamiento de productos de madera. Durante el secado se generan algunos defectos debido a la distribución variable del contenido de humedad y de la temperatura al interior del material. En el secado industrial de madera, los problemas de optimización de los procesos deben ser fundamentados en los diferentes fenómenos de transporte que controlan la transferencia de masa y calor en el sólido. Por sus propiedades físicas, las maderas duras adquieren gran importancia como materia prima, pues su dureza, color, estabilidad dimensional y alta resistencia a la degradación causada por el medio ambiente, les dan un valor comercial importante. En los últimos años el modelamiento de los procesos de secado ha sido una herramienta eficaz para la optimización de tales operaciones; estos modelos asocian balances de energía, de masa y de momento, que pueden ser expresados como ecuaciones diferenciales que son resueltas numéricamente para obtener soluciones específicas en cada problema. En este trabajo se explican los mecanismos de transferencia de masa y calor presentes en el secado convencional, se escriben las ecuaciones de transporte de masa y calor, y por último se muestran los perfiles de humedad y temperatura para el encino europeo Quercus pedonculae, sometido a secado convencional. Instituto de Ecología, A.C. 2016-08-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/1198 10.21829/myb.2009.1511198 Madera y Bosques; Vol. 15 No. 1 (2009): Primavera 2009; 75-89 Madera y Bosques; Vol. 15 Núm. 1 (2009): Primavera 2009; 75-89 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/1198/1377 Derechos de autor 2016 Madera y Bosques |
| spellingShingle | Sandoval-Torres, Sadoth Mathematical modeling of the conventional drying of wood |
| title | Mathematical modeling of the conventional drying of wood |
| title_full | Mathematical modeling of the conventional drying of wood |
| title_fullStr | Mathematical modeling of the conventional drying of wood |
| title_full_unstemmed | Mathematical modeling of the conventional drying of wood |
| title_short | Mathematical modeling of the conventional drying of wood |
| title_sort | mathematical modeling of the conventional drying of wood |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/1198 |
| work_keys_str_mv | AT sandovaltorressadoth mathematicalmodelingoftheconventionaldryingofwood AT sandovaltorressadoth modelacionmatematicadelsecadoconvencionaldemadera |
