The technical and economical performance of the ABC type paddy dryer.
Sutrisno; Wahyudin, M.; Ananto, E. E.;
Indonesian Journal of Agricultural Science
2001
บทคัดย่อ
Farmers in the villages always face the same problem of reducing the moisture content of paddy during harvest and postharvest time, especially in the wet season. At the farm level, the grain quality is poor and alternative drying using kerosene fuel is very costly. The objective of this research was to design and evaluate the technical and economical performance of drying paddy using an equipment known as 'ABC' drier. The drier uses paddy husk as fuel. The research was conducted at the Research Institute for Rice, West Java, Indonesia, for three years (1993/94-1995-96). Result showed that the 'ABC' type drier could reduce the moisture content of 5 tons wet paddy from 22.25 to 15.03% in 9 h or an average drying rate of 1.05% moisture content per hour, with drying cost of Rp 18 kg-1. Reducing the moisture content further to 11.83% needed 16 h or average drying rate 0.82% h-1, with drying cost almost doubled (Rp 32 kg-1). These costs were far below that of kerosene drying, i.e., Rp 30 kg-1 and Rp 60 kg-1 to reach moisture content of 15.03 and 11.83%, respectively. Budget analysis showed that the B:C ratio were 1.57 and 1.84 and the IRR were above 41.26 and 47.42% to reach moisture contents of 15.03 and 11.83%, respectively. The break even points of 'ABC' drier were 130 and 60 tons, respectively. The milling test showed that the milled rice from the 'ABC' drier had better recovery (milling rendement) and rice quality (head rice) was higher than that of from sun-drying.