Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 546194
Title A spatially distributed physical model for dynamic simulation of ventilated agro-material in bulk storage facilities
Author(s) Grubben, Nik L.M.; Keesman, Karel J.
Source Computers and Electronics in Agriculture 157 (2019). - ISSN 0168-1699 - p. 380 - 391.
DOI https://doi.org/10.1016/j.compag.2018.12.033
Department(s) Biobased Chemistry and Technology
WIMEK
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2019
Keyword(s) Food storage modelling - Potato storage - Storage climate control
Abstract

To maintain a high quality and limit storage losses of agro-materials in bulk storage, the dynamic interaction between climate in the facility and product needs to be better understood. In this paper, we present a (2-D) spatially distributed, dynamic full-scale bulk storage model. Also, model calibration and validation results using data from a full-scale potato storage facility are presented. The model predicts convection and diffusion of heat, mass and carbon dioxide as well as the heat, mass and carbon dioxide transfer between bulk and air, respiration and evaporation of the food product and the natural and forced convection in the storage facility. In the CFD model two actuators, a moving hatch and a fan, were successfully implemented. The validated model was used as a tool to investigate the cooling process within the full-scale storage facility. When applying a combination of under- and overpressure instead of the conventionally applied overpressure, a reduction of the temperature gradient in vertical direction and an increased temperature gradient of the temperature gradient in horizontal direction was obtained. A reduction on this horizontal temperature gradient was accomplished by adding an air channel near the roof.

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