COST ANALYSIS OF MAIZE DRYING SYSTEMS USING MECHANICAL DRIERS
DOI:
https://doi.org/10.13083/reveng.v18i1.47Keywords:
Energia, SecagemAbstract
This study was done to analyze the feasibility of using rotary dryers with radial air distribution, generally used for coffee processing, for corn (Zea mays L.) grain drying, based on energy consumption and drying cost. The drying air temperature was maintained at 80 or 100 °C with use of liquid petroleum gas. The drying systems consisted of a commercial and a modified rotary dryer. Corn grains with initial moisture content of about 18.6% b.u. were used in the experiment. The specific energy consumption and the consumption of fuel and electricity were determined to evaluate energy efficiency of the drying systems. The results showed lower specific energy consumption for the modified rotary dryer. The breakage susceptibility of grains was below 5%. The mean percentage of total grain cracking in the commercial dryer (SC 80 and SC 100) was 17.6% higher than that obtained with the modified dryer (SM 80 and SM 100). The mean total drying cost in the commercial dryer (SC 80 and SC 100) was lower than that of the modified dryer (SM 80 and SM 100).Downloads
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