Journal of Biosystems Engineering
- Volume 25 Issue 3
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- Pages.227-232
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- 2000
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- 1738-1266(pISSN)
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- 2234-1862(eISSN)
Development of a Grain Circulating Type Natural Air In-bin Dryer (I) - Development of dryer and analysis of drying performance
곡물 순환식의 상온통풍 건조기 개발(I) - 건조기 개발 및 벼의 건조성능 분석
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Yun, H. S.
(National Agricultural Mechanization Institute, Rural Development Administration)
;
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Chung, H.
(National Agricultural Mechanization Institute, Rural Development Administration)
;
- Cho, Y. G. (National Agricultural Mechanization Institute, Rural Development Administration) ;
- Park, W. K. (National Agricultural Mechanization Institute, Rural Development Administration)
- Published : 2000.06.01
Abstract
A natural air in-bin grain dryer with a grain circulator was developed for on farm use. Natural air drying test for rough rice was carried out to evaluate drying rate, uniformity of moisture content distribution in grain bed and energy consumption. It took 10 days to dry 8 ton of paddy rice from 21.9%(w.b) of moisture contents to 16.7%(w.b), by prototype dryer and the average drying rate was 0.52%/day. The uniformity of moisture content after drying was superior to a conventional natural air dryer in which grains were not mixed during drying periods. The dryer performance evaluation index was 738.3kJ/(kg.water), which was more effective than that of grain circulation type hot air dryer(3,500∼5,000 kJ/kg.water)