Mathematical modeling of the drying of extruded fish feed and its experimental demonstration

Anders Fjeldbo Haubjerg; B. Simonsen; S. Løvgreen; Bo Nørregaard Jørgensen; Christian  Veje

Mathematical modeling of the drying of extruded fish feed and its experimental demonstration

Anders Fjeldbo Haubjerg
, B. Simonsen
, S. Løvgreen
, Bo Nørregaard Jørgensen
, Christian Veje

Department of Technology and Innovation

Research output: Contribution to conference without publisher/journal › Paper › Research › peer-review

Abstract

This paper present a mathematical model for the drying of extruded fish feed
pellets. The model relies on conservation balances for moisture and energy. Sorption isotherms from literature are used together with diffusion and transfer coefficients obtained from dual parameter regression analysis against experimental data. The lumped capacitance method for the estimation of the heat transfer coefficient is used. The model performs well at temperatures ± 5 °C from sorption isotherm specificity, and for different pellet sizes. There is a slight under-estimation of surface temperature of denser feed pellets with lower mass diffusivities, possibly owing to a mischievously low conductivity used for these pellets.

Original language	English
Publication date	Aug 2014
Number of pages	7
Publication status	Published - Aug 2014
Event	19th International Drying Symposium - Lyon, France Duration: 24. Aug 2014 → 27. Aug 2014 Conference number: 19

Conference

Conference	19th International Drying Symposium
Number	19
Country/Territory	France
City	Lyon
Period	24/08/2014 → 27/08/2014

Keywords

drying
mathematical modeling
fish feed

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title = "Mathematical modeling of the drying of extruded fish feed and its experimental demonstration",

abstract = "This paper present a mathematical model for the drying of extruded fish feed pellets. The model relies on conservation balances for moisture and energy. Sorption isotherms from literature are used together with diffusion and transfer coefficients obtained from dual parameter regression analysis against experimental data. The lumped capacitance method for the estimation of the heat transfer coefficient is used. The model performs well at temperatures ± 5 °C from sorption isotherm specificity, and for different pellet sizes. There is a slight under-estimation of surface temperature of denser feed pellets with lower mass diffusivities, possibly owing to a mischievously low conductivity used for these pellets.",

keywords = "drying, mathematical modeling, fish feed",

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T1 - Mathematical modeling of the drying of extruded fish feed and its experimental demonstration

AU - Haubjerg, Anders Fjeldbo

AU - Simonsen, B.

AU - Løvgreen, S.

AU - Jørgensen, Bo Nørregaard

AU - Veje, Christian

N1 - Conference code: 19

PY - 2014/8

Y1 - 2014/8

N2 - This paper present a mathematical model for the drying of extruded fish feed pellets. The model relies on conservation balances for moisture and energy. Sorption isotherms from literature are used together with diffusion and transfer coefficients obtained from dual parameter regression analysis against experimental data. The lumped capacitance method for the estimation of the heat transfer coefficient is used. The model performs well at temperatures ± 5 °C from sorption isotherm specificity, and for different pellet sizes. There is a slight under-estimation of surface temperature of denser feed pellets with lower mass diffusivities, possibly owing to a mischievously low conductivity used for these pellets.

AB - This paper present a mathematical model for the drying of extruded fish feed pellets. The model relies on conservation balances for moisture and energy. Sorption isotherms from literature are used together with diffusion and transfer coefficients obtained from dual parameter regression analysis against experimental data. The lumped capacitance method for the estimation of the heat transfer coefficient is used. The model performs well at temperatures ± 5 °C from sorption isotherm specificity, and for different pellet sizes. There is a slight under-estimation of surface temperature of denser feed pellets with lower mass diffusivities, possibly owing to a mischievously low conductivity used for these pellets.

KW - drying

KW - mathematical modeling

KW - fish feed

M3 - Paper

T2 - 19th International Drying Symposium

Y2 - 24 August 2014 through 27 August 2014

ER -

Mathematical modeling of the drying of extruded fish feed and its experimental demonstration

Abstract

Conference

Keywords

SDU Link

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