Tugas Akhir Mesin
Pengaruh Variasi Massa Bahan Pada Alat Pengering Mesin Tipe Vertikal Kontinyu Terhadap Waktu Pengeringan
Post-harvest handling of grain before being ground or stored for a long time is drying or reducing water content. To dry the grain to be more effective by using a mechanical dryer. In this study, grain drying was carried out using a continuous vertical dryer by varying the grain mass to determine the effect of grain mass variation on the grain drying time. Mass variations observed were 10 kg, 20 kg, 30 kg, 40 kg, 50 kg, 60 kg, with an air temperature of 50 ° C with a tolerance of ± 1 ° C and an air velocity of 7 m / s. The result is that the more grain mass is dried, the drying rate will be lower and the efficiency will be higher but requires the longest drying time and the lower the grain mass, the higher the drying rate and the lower the efficiency and drying time will be faster. At the lowest mass variation, 10 kg, the lowest drying rate is 0.0001351 kg / s, but the fastest drying time is 75 minutes. Whereas the highest grain mass variation of 60 kg obtained the highest drying rate of 0.0004420 kg / s with the maximum drying time of 150 minutes. The highest efficiency occurs at a mass variation of 60 kg that is 8.7762% and the lowest efficiency occurs at a mass variation of 10 kg that is 1.5953%.
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