COPRA DRYING IN SOLAR AND BIOMASS INTEGRATED DRYER
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 58
Abstract
Solar and biomass are the two sources of renewable energy highly suitable for drying application. Drying using solar energy is the traditional method but this method has a downside of interrupted during off-sunshine hours like rainy season, cloudy weather and night time. Hence, a combination of solar and biomass energy for drying is experimentally analyzed in this paper for copra drying. This article presents the experimental study on drying characteristics of copra drying in solar tunnel dryer integrated with biomass hot air generation system. It facilitates drying to continued under all weather condition and overcomes the limitations of conventional drying methods. The total drying time for drying copra from its initial moisture content of 108.3 per cent (d.b) to a final moisture content of around 5.26 per cent (d.b) was 48 hours. The drying characteristics curves were analyzed and the moisture reduction was uniform throughout the drying period and drying rate showed a peak during initial drying hours because of high moisture content in the fresh coconut and reduced gradually as the time passes. The moisture ratio decreases as the drying time increases. Hence, the solar and biomass integrated drying system reduced the drying time from 5 to 7 days in conventional open sun drying method to 2 days with improved quality of dried copra.
Authors and Affiliations
G. SARAVANAPRIYA
Keywords
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