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A Mathematical Model Of Solar Drying Of Rice
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Pyseth Meas
Veröffentlicht/Copyright:
24. Juli 2012
Abstract
A mathematical model describing the heat and moisture transfer within a solar drying system of rice was formulated. A numerical solution using MATLAB was implemented due to the many coupled PDEs and nonlinear algebraic equations. The model was checked for a range of the space steps and by comparison to analytical solutions for completed situations and was shown to contain no significant numerical errors. After estimating the best values and uncertainties of the system inputs the model was validated by comparison with experimental data for solar drying of rice. It was shown to be a very good mechanistic tool with advantages of simplicity and practical accuracy. The model accurately predicted the drying time and the temperature, and moisture content (MC) within the bed during drying except when a polystyrene drying pad was used. However, the model did not predict the experimental bed water activity (relative humidity) consistently well.
Published Online: 2012-7-24
©2012 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Artikel in diesem Heft
- Article
- Formation of Nε-(Carboxymethyl)lysine in Saccharide-Lysine Model Systems by Different Heat Treatments
- Effects of Drying Methods on Antioxidant Properties and Phenolic Content in White Button Mushroom
- Impact of Oleifera Powder on Nutritional and Function Properties of Wheat Flour Product
- Effect of Starter Cultures on Several Chemical, Sensory and Textural Attributes of Turkish Fermented Sausage
- Thin-layer Steam Distillation of Fermented Grains: Effects of Steam Flow Rate and Temperature
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- Aqueous Enzymatic Extraction of Rapeseed Oil and Protein from Dehulled Cold-pressed Double-low Rapeseed Cake
- Thermal Diffusivity and Specific Heat of Bovine Milk Affected by Temperature and Composition
- Glass Transition Temperature, Mechanical Properties of Rice and their Relationships with Milling Quality
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- Kinetics of bioactive compounds in functional spice Jiangpo during thermal processing
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