Simulation of engine-wasted heat stationary deep-bed rough rice dryer.
Basunia, M. A.; Abe, T.; Hikida, Y.;
AMA, Agricultural Mechanization in Asia, Africa and Latin America Year: 1996 Vol: 27 Issue: 4 Pages: 37-45, 48 Ref: 9 ref.
1996
บทคัดย่อ
Research into minimizing postharvest losses and the effective utilization of energy resources for crop drying has led to the idea of utilising waste heat from internal combustion engines. An attempt was made to measure the availability of waste heat, at different engine speeds, that can be used for grain drying. A static deep-bed rough rice drier was proposed on the basis of measured available waste heat from the engine. From the measured drying airflow characteristics, a theoretical analysis on the proposed drier performance is made using partial differential equations. The equations are used in a mathematical model of the deep-bed drying of grain which considers different depths of rough rice in the drier. Some information on the calculation of waste heat from the engine for crop drying, fan requirements and specifications for the design of a flat bed dryer are also presented. Results have shown promise for this type of grain drying unit, especially in major rice growing regions where the same
engines which are used for pumping irrigation water and rice milling purposes can also be used for grain drying.