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Development of greenhouse solar tunnel dryer for industrial fish drying of selected species from the western coastal region of India

Author Affiliations

  • 1 College of Agricultural Engineering and Technology, Junagadh Agricultural University, Junagadh, Gujarat, INDIA

Res. J. Engineering Sci., Volume 4, Issue (10), Pages 1-9, October,26 (2015)


The paper is aimed to develop a greenhouse type solar tunnel dryer for industrial drying of selected species of fish Croaker, Anchovy and Ribbon in the western coastal town Veraval (20° 53' N, 73° 26' E.), Gujarat, India and was installed at Jose and Brothers Fish Industry. The single span arc type G.I pipe frames were used to construct the dryer (collector area of 150.9 m2 and covered with a single layer 200μ thick UVS polyethylene sheet. The performance of the dryer was evaluated as per a CRD statistical analysis using the drying parameters like pre-treatment with salt and without salt in the temperature range of T1 (40-45) and T2 (45-49). The test results showed that developed dryer can reduce moisture content of salt treated fish up to 42.85% to 66.66 % (db) between 8 to 16 h, whereas in case of unsalted fish moisture content was reduced up to 17.64 % - 25 % (db) in 24 to 32 hours of drying depending on a variety of fish and initial moisture content. The quality analysis showed that fish drying is better in the low temperature range.


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