Abstract
Myanmar is an agricultural country and has a population of about 60 million. Various kinds of crops are grown in Myanmar. Among them, rice is one of the major crop and the drying facilities at the site of the rice production is essential if post production losses is to be kept to a minimum. So, many dryers are required for rice production. Some dryers are run by diesel or gasoline engines and natural source of sun. In this thesis, the drying system will be powered by solar energy sources. The dryer, so called, mixed-mode natural convection solar agricultural crop dryer is being designed. It was noted that the designed dryer had advantages over traditional sun drying, is that paddy was free from impurities such as dirt, there was a low incidence of losses from mold or insects; and paddy was not exposed to rain or dew. This dryer can reduce moisture content of 1.5 m3 paddy, from 22 % to 12 % (w.b) in a day having the total solar energy of 15.87 MJ/m2 falling on the dryer. Total volume of air is estimated to be 18155.32 m3 with a flow rate of 0.6304 m3/sec. The primary collector area is (7.88 m × 3.94 m) and the drying bed area is (3.81 m × 3.49 m). For human entry, a space (3.94 m × 1.63 m) is made in the drying chamber with a chimney having a height of one meter. And then, the solar dryers are analyzed by changing the drying capacity with same chimney height.
Keywords
flat plate collector, moisture content, solar energy
Citations
IRE Journals:
Aye Aye Thet , Aung Ko Latt , San Yin Htwe , Thae Su Tin
"Design Of Mixed-mode Natural Convection For Solar Agricultural Crop Dryer" Iconic Research And Engineering Journals Volume 2 Issue 6 2018 Page 109-116
IEEE:
Aye Aye Thet , Aung Ko Latt , San Yin Htwe , Thae Su Tin
"Design Of Mixed-mode Natural Convection For Solar Agricultural Crop Dryer" Iconic Research And Engineering Journals, 2(6)
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