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Design and Performance Assessment of a Low Cost Solar Powered Grain Dryer with Dehusking System

Author(s):

Mrs. Priya. R , MANAKULA VINAYAGAR INSTITUTE OF TECHNOLOGY; Mr. Anbarasan, MANAKULA VINAYAGAR INSTITUTE OF TECHNOLOGY; Mr. S. Shakthivel, MANAKULA VINAYAGAR INSTITUTE OF TECHNOLOGY, MANAKULA VINAYAGAR INSTITUTE OF TECHNOLOGY

Keywords:

Post Harvest Technologies, Open Sun Drying and Solar Dryer, Biomass Energy, Dehusking System

Abstract

The agricultural sector is the backbone of Indian Economy contributing majorly to the countrys GDP. Indias food grain production reached around 275.88 million tonnes in the year 2017-18 and is estimated to reach 278.55 million tonnes in 2018-19. As on February 2018, it is estimated that over 58% of rural Indians depends on agriculture for their livelihood and this sector contributes around 17-18% to the countrys GDP. As per the 2014 FAO , world agriculture statistics India is the worlds largest producer of many fresh fruits like banana, mango, guava, papaya, lemon and vegetables like chickpea, okra and milk, major spices like chili pepper, ginger, fibrous crops such as jute, staples such as millets and castor oil seed. India is standing as a largest producer of wheat and rice and contributes 20% of the world total rice needs. In spite of these large numbers, food production still does not meet the needs of population. The successful operation of pre and post-harvest technologies is essential towards the food availability and security worldwide. The grain harvesting is a combined process which incorporates the various harvesting processes such as gathering, drying, threshing, separation and cleaning, etc., particularly drying and threshing are the most important function. Countries like India are blessed with abundant solar energy and it is a large sources for meeting energy demand without putting adverse impact of environment. Biomass energy is also employed as auxiliary heating source due to its availability and cost effectiveness in rural areas. This paper describes about the design and performance assessment of a low cost solar powered grain dryer with dehusking system for post harvesting technologies. In the proposed prototype model, drying chamber serves as the first stage with a solar collector to convert the energy of the sun rays into heat with the help of transparent top of the drying tunnel, which increases the temperature of the drying air, blower will move the air through the drying tunnel, inflate the tunnel, and take out the moisture content from the grains placed inside the chamber. The whole dehusking mechanism consists of a solar panel, a rechargeable battery and a charge controller to generate electricity that drives a worm gear motor. The complete system was designed for small to medium scale agro-processors in a way to reduce post-harvest expenditures and also to improve the product quality.

Other Details

Paper ID: IJSRDV7I40604
Published in: Volume : 7, Issue : 4
Publication Date: 01/07/2019
Page(s): 609-615

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