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On-line Access: 2010-07-04

Received: 2009-10-24

Revision Accepted: 2010-03-28

Crosschecked: 2010-05-31

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Journal of Zhejiang University SCIENCE B 2010 Vol.11 No.7 P.482-488


Finite element analysis and modeling of water absorption by date pits during a soaking process

Author(s):  Motahareh Waezi-Zadeh, Ahmad Ghazanfari, Shahin Noorbakhsh

Affiliation(s):  Horticultural Research Institute, Shahid Bahonar University of Kerman, P.O. Box 76169-133, Kerman, Iran

Corresponding email(s):   ahg212@mail.usask.ca

Key Words:  Date pits, Soaking, Water absorption, Modeling

Motahareh Waezi-Zadeh, Ahmad Ghazanfari, Shahin Noorbakhsh. Finite element analysis and modeling of water absorption by date pits during a soaking process[J]. Journal of Zhejiang University Science B, 2010, 11(7): 482-488.

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publisher="Zhejiang University Press & Springer",

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%T Finite element analysis and modeling of water absorption by date pits during a soaking process
%A Motahareh Waezi-Zadeh
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0910641

T1 - Finite element analysis and modeling of water absorption by date pits during a soaking process
A1 - Motahareh Waezi-Zadeh
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A1 - Shahin Noorbakhsh
J0 - Journal of Zhejiang University Science B
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SP - 482
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.B0910641

date pits for feed preparation or oil extraction are soaked in water to soften before milling or extrusion. Knowledge of water absorption by the date pits helps in better managing the soaking duration. In this research, the process of water absorption by date pits was modeled and analyzed using Fick’s second law of diffusion, finite element approach, and Peleg model. The moisture content of the pits reached to its saturation level of 41.5% (wet basis) after 10 d. The estimated coefficient of diffusion was 9.89×10−12 m2/s. The finite element model with a proposed ellipsoid geometry for a single date pit and the analytical model fitted better to the experimental data with R2 of 0.98. The former model slightly overestimated the moisture content of the pits during the initial stages of the soaking and the latter model generally underestimated this variable through the entire stages of soaking process.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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