A Numerical Approach to Determine Some Properties of Cylindrical Pieces of Bananas During Drying
-
Wilton Pereira da Silva
,
Cleide M. D. P. S. e Silva
Abstract
This article uses several liquid diffusion models to describe convective drying of bananas cut into cylindrical pieces. A two-dimensional numerical solution of the diffusion equation with boundary condition of the third kind, obtained through the finite volume method, was used to describe the process. The cylindrical pieces were cut into the following dimensions: length of about 21 mm and average radius of 15 mm. Drying air temperatures were 40°C, 50°C, 60°C and 70°C. In order to determine the process parameters, an optimizer was coupled with the numerical solution. A model that considers the shrinkage and variable effective moisture diffusivity well describes drying for all the experimental conditions, and enables to predict the moisture distributions at any given time. For this model, the determination coefficient has varied from 0.99937 (70°C) to 0.99995 (40°C), while the chi-square ranged from 3.41 × 10−4 (40°C) to 4.15 × 10−3 (70°C).
Acknowledgments
The author Wilton Pereira da Silva would like to thank CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico) for the support given to this work and for his research grant (Process Number 301697/2012-4).
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©2015 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Soft Tofu-Type Gels: Relationship between Volatile Compounds and Sensory Characteristics as Affected by Coagulants and Raw Materials
- Preparation and Characterization of Genipin-Crosslinked Chitosan Microspheres for the Sustained Release of Salidroside
- A Numerical Approach to Determine Some Properties of Cylindrical Pieces of Bananas During Drying
- Pasting, Textural and Sensory Characteristics of the Kofter, A Fruit-Based Dessert: Effect of Molasses and Water Concentration
- Microwave-Assisted Extraction of Phenolic Compounds from Dried Waste Grape Skins
- Effect of Cooking Temperature on Mineral Content and Anti-nutritional Factors of Yam and Taro Grown in Southern Ethiopia
- Isolation of Linoleic Acid from Sambucus williamsii Seed Oil Extracted by High Pressure Fluid and Its Antioxidant, Antiglycemic, Hypolipidemic Activities
- Comparison of Artificial Neural Network and Response Surface Methodology Performance on Fermentation Parameters Optimization of Bioconversion of Cashew Apple Juice to Gluconic Acid
- Modeling the Total Residence Time in a Rotary Dryer
- Optimization of Spray Drying Process Parameters for Sweet Corn Enzymolysis Liquid
- Hot Air Drying Characteristics of Sukkari Date (Phoenix dactylifera L.) and Effects of Drying Condition on Fruit Color and Texture
- Effects of Air-Impingement Jet Drying on Drying Kinetics, Nutrient Retention and Rehydration Characteristics of Onion (Allium cepa) Slices
Artikel in diesem Heft
- Frontmatter
- Soft Tofu-Type Gels: Relationship between Volatile Compounds and Sensory Characteristics as Affected by Coagulants and Raw Materials
- Preparation and Characterization of Genipin-Crosslinked Chitosan Microspheres for the Sustained Release of Salidroside
- A Numerical Approach to Determine Some Properties of Cylindrical Pieces of Bananas During Drying
- Pasting, Textural and Sensory Characteristics of the Kofter, A Fruit-Based Dessert: Effect of Molasses and Water Concentration
- Microwave-Assisted Extraction of Phenolic Compounds from Dried Waste Grape Skins
- Effect of Cooking Temperature on Mineral Content and Anti-nutritional Factors of Yam and Taro Grown in Southern Ethiopia
- Isolation of Linoleic Acid from Sambucus williamsii Seed Oil Extracted by High Pressure Fluid and Its Antioxidant, Antiglycemic, Hypolipidemic Activities
- Comparison of Artificial Neural Network and Response Surface Methodology Performance on Fermentation Parameters Optimization of Bioconversion of Cashew Apple Juice to Gluconic Acid
- Modeling the Total Residence Time in a Rotary Dryer
- Optimization of Spray Drying Process Parameters for Sweet Corn Enzymolysis Liquid
- Hot Air Drying Characteristics of Sukkari Date (Phoenix dactylifera L.) and Effects of Drying Condition on Fruit Color and Texture
- Effects of Air-Impingement Jet Drying on Drying Kinetics, Nutrient Retention and Rehydration Characteristics of Onion (Allium cepa) Slices
