A diffusion model with a moisture dependent diffusion coefficient for parboiled rice

A mathematical model describing moisture migration by diffusion in a solid sphere with variable diffusion coefficient is proposed. An analytical expression for dependence of the diffusion coefficient with moisture content was derived based on the assumption that the activation energy for diffusion v...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Elbert, G., Tolaba, M.P., Aguerre, R.J., Suárez, C.
Formato:	JOUR
Materias:	Activation energy Biot number Drying Heat of desorption Modeling Thin layer drying Variable diffusivity Crops Desorption Diffusion Mathematical models Moisture Temperature distribution Solid spheres diffusion food industry mathematical modeling moisture
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_07373937_v19_n1_p155_Elbert
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_07373937_v19_n1_p155_Elbert
record_format	dspace
spelling	todo:paper_07373937_v19_n1_p155_Elbert2023-10-03T15:37:54Z A diffusion model with a moisture dependent diffusion coefficient for parboiled rice Elbert, G. Tolaba, M.P. Aguerre, R.J. Suárez, C. Activation energy Biot number Drying Heat of desorption Modeling Thin layer drying Variable diffusivity Activation energy Crops Desorption Diffusion Mathematical models Moisture Temperature distribution Solid spheres Drying diffusion food industry mathematical modeling moisture A mathematical model describing moisture migration by diffusion in a solid sphere with variable diffusion coefficient is proposed. An analytical expression for dependence of the diffusion coefficient with moisture content was derived based on the assumption that the activation energy for diffusion varies linearly with the desorption energy. The expression for moisture dependence of diffusion coefficient was used to simulate drying of parboiled rice in the temperature range 50-90°C. The mathematical model shows good agreement between observed and predicted drying rate curves. Fil:Tolaba, M.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Aguerre, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07373937_v19_n1_p155_Elbert
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Activation energy Biot number Drying Heat of desorption Modeling Thin layer drying Variable diffusivity Activation energy Crops Desorption Diffusion Mathematical models Moisture Temperature distribution Solid spheres Drying diffusion food industry mathematical modeling moisture
spellingShingle	Activation energy Biot number Drying Heat of desorption Modeling Thin layer drying Variable diffusivity Activation energy Crops Desorption Diffusion Mathematical models Moisture Temperature distribution Solid spheres Drying diffusion food industry mathematical modeling moisture Elbert, G. Tolaba, M.P. Aguerre, R.J. Suárez, C. A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
topic_facet	Activation energy Biot number Drying Heat of desorption Modeling Thin layer drying Variable diffusivity Activation energy Crops Desorption Diffusion Mathematical models Moisture Temperature distribution Solid spheres Drying diffusion food industry mathematical modeling moisture
description	A mathematical model describing moisture migration by diffusion in a solid sphere with variable diffusion coefficient is proposed. An analytical expression for dependence of the diffusion coefficient with moisture content was derived based on the assumption that the activation energy for diffusion varies linearly with the desorption energy. The expression for moisture dependence of diffusion coefficient was used to simulate drying of parboiled rice in the temperature range 50-90°C. The mathematical model shows good agreement between observed and predicted drying rate curves.
format	JOUR
author	Elbert, G. Tolaba, M.P. Aguerre, R.J. Suárez, C.
author_facet	Elbert, G. Tolaba, M.P. Aguerre, R.J. Suárez, C.
author_sort	Elbert, G.
title	A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
title_short	A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
title_full	A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
title_fullStr	A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
title_full_unstemmed	A diffusion model with a moisture dependent diffusion coefficient for parboiled rice
title_sort	diffusion model with a moisture dependent diffusion coefficient for parboiled rice
url	http://hdl.handle.net/20.500.12110/paper_07373937_v19_n1_p155_Elbert
work_keys_str_mv	AT elbertg adiffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT tolabamp adiffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT aguerrerj adiffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT suarezc adiffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT elbertg diffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT tolabamp diffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT aguerrerj diffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice AT suarezc diffusionmodelwithamoisturedependentdiffusioncoefficientforparboiledrice
_version_	1807318613658435584

A diffusion model with a moisture dependent diffusion coefficient for parboiled rice

Ejemplares similares