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To achieve self-reliance, poor communities need answers to questions like: How can we grow more and healthier food? Protect our health? Create jobs? A key part of Canada’s aid program since 1970, IDRC supports research in developing countries to answer these questions.  



Solar and natural air drying of rough rice in Korea  [1982]

Hak Kyun Koh; Chang Joo Chung (Seoul National University, Division of Agricultural Machinery and Process Engineering, Suweon (Korea R.));

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An evaluation was made of the feasibility of the solar and natural air in-bin drying and storage system, and the weather conditions and some experimental results conducted in Korea from 1973 to 1980 were analyzed. The experimental results of solar natural air drying were discussed in terms of drying rate, moisture variation in the grain mass, and energy requirements per kg. of water removed. Solar collectors with and without heat storage units were used for drying of rough rice. Economic profitability for the system developed is also analyzed in this paper.