International Journal of Agricultural Engineering

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Design and Performance Evaluation of Portable Folding Type Solar Dryer for Drying of Amla Candy


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1 College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), India
     

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The research was conducted to design and evaluate the performance of portable folding type solar dryer for drying of amla candy. The developed dryer consist of chimney, chimney stand, drying chamber, polyethylene sheet with mosquito net as dome and perforated try. The dryer had capacity of 2 kg per batch of amla candy of thickness 6 to 7 mm. The dimensions of dryer were 0.9 m length, 0.6 m width and 0.6 m height. The collector area was 0.539 m2 with drying cabinet size of 0.9 x 0.6 m. The total cost of construction of dryer was Rs. 1349. Wet amla pieces with and without sugar were selected as drying material. The dryer was tested for its performance at without load and with load. During no load test maximum temperature achieved in dryer was 61.6 °C. The moisture content of 6 mm thick amla pieces treated with sugar was reduced from 281.67 % (db) to 29.93 % (db) in 600 minutes. While moisture content of amla pieces without sugar was reduced from 718.33 % (db) to 58.56 % (db) in 600 minutes. The drying rate of amla pieces with sugar and without sugar had peak value of 1.4126 and 1.6777 g water per gram dry matter per hour, respectively during drying time interval of 8.30 am to 9.30 am of the day. The temperature reached in the dryer was 15 to 20 °C higher than atmospheric temperature.

Keywords

Amla, Amla Candy, Foldable, Portable, Solar Dryer.
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  • Design and Performance Evaluation of Portable Folding Type Solar Dryer for Drying of Amla Candy

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Authors

V. D. Paradkar
College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), India
D. J. Shrinivasa
College of Agricultural Engineering and Technology, Dr. Balasaheb Sawant Konkan Krishi Vidyapeeth, Dapoli, Ratnagiri (M.S.), India

Abstract


The research was conducted to design and evaluate the performance of portable folding type solar dryer for drying of amla candy. The developed dryer consist of chimney, chimney stand, drying chamber, polyethylene sheet with mosquito net as dome and perforated try. The dryer had capacity of 2 kg per batch of amla candy of thickness 6 to 7 mm. The dimensions of dryer were 0.9 m length, 0.6 m width and 0.6 m height. The collector area was 0.539 m2 with drying cabinet size of 0.9 x 0.6 m. The total cost of construction of dryer was Rs. 1349. Wet amla pieces with and without sugar were selected as drying material. The dryer was tested for its performance at without load and with load. During no load test maximum temperature achieved in dryer was 61.6 °C. The moisture content of 6 mm thick amla pieces treated with sugar was reduced from 281.67 % (db) to 29.93 % (db) in 600 minutes. While moisture content of amla pieces without sugar was reduced from 718.33 % (db) to 58.56 % (db) in 600 minutes. The drying rate of amla pieces with sugar and without sugar had peak value of 1.4126 and 1.6777 g water per gram dry matter per hour, respectively during drying time interval of 8.30 am to 9.30 am of the day. The temperature reached in the dryer was 15 to 20 °C higher than atmospheric temperature.

Keywords


Amla, Amla Candy, Foldable, Portable, Solar Dryer.

References