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Fundamentals of drying processes: drying parameters; Effect of parameters on drying; Characterization of drying; Mechanism of drying; Drying strategy; Technology of solar drying: open-air sun drying; Classification of solar dryers; Simulation model for drying systems: Introduction; Solar air heating systems; Drying processes for food/agricultural products; Relationships and data required for drying simulation models; Recommendations.
Drying grain, especially corn, with conventional artificial drying methods requires great quantities of petroleum fuel during a short harvest period. Two systems of drying are used: high-speed, high temperature batch or continuous-flow and low temperature in-storage drying. Solar energy was studied as an alternative or supplemental source of energy for low-temperature drying at several different Midwest locations.
Evaluation of solar drying potential. Pre-drying processing operations. The mechamisms of drying. Solar radiation. Solar collectors. Solar dryer classification. Direct dryers employing natural convection with separate collector and drying chamber. indirect dryers employing forced convection eith separate collector and drying chamber. Hybrid dryers. Ancillary equipment and recent develpments. Quality assessment. packaging and storage of dried foodstuffs. Dryer selection and design. Experiomental methodology. From theory into practice. Economics. Extension of solar crop drying technology.
The Solar Food Dryer describes how to use solar energy to dry your food instead of costly electricity. With your own solar-powered food dryer, you can quickly and efficiently dry all your extra garden veggies, fruits and herbs to preserve their goodness all year long-with free sunshine! Applicable to a wide geography-wherever gardens grow-this well illustrated book includes: Complete step-by step plans for building a high-performance, low-cost solar food dryer from readily-available materials solar energy design concepts food drying tips and recipes resources, references, solar charts, and more. - A Mother Earth News Book for Wiser Living -