Modelling and simulation of heat exchange and moisture content in a cereal storage silo

F. Hammami, S. Ben Mabrouk and A. Mami

Mathematical and Computer Modelling of Dynamical Systems, 2016, vol. 22, issue 3, 207-220

Abstract: In this paper, a mathematical model is developed based on the heat transfer of stored grains aerated in a cylindrical silo. This work is a part of study that aims to model the whole process of cereal storage system including a dehumidifier. The use of dehumidifier is intended to remove excess moisture from the airflow injected by the ventilator system in the silo filled with wheat, and to keep hygroscopic properties of grain in safe level during the storage period. Temperature and humidity are the two important variables coupled to control the process and to preserve grain quality. The laboratory device permitted us to achieve several tests for different conditions of grain stored in silo without aeration. A simulation of the airflow through the thermal space of the silo and grain parameters has been carried out. The results are reasonably in agreement with experiments and other published data. The system performance is evaluated at critical conditions of storage boundaries.

Date: 2016
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DOI: 10.1080/13873954.2016.1157823

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