49 KB218 KB52 KB199920252005Jukić, ŽeljkoKiš, DarkoKrička, TajanaVoća, NevenVoća, Sandra13 straništevilka:4letnik:51str. 204-216ISSN:0039-2480COBISSID:8337691URN:URN:NBN:SI:doc-CARZVOO3enslAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikcone hladilnerehidracijasušenjezrnjezrnje koruznoMotnje v postopku hlajenja koruznega zrnja v vertikalnih gravitacijskih sušilnicah| Disturbances in the process of corn-grain cooling in vertical gravity dryers|The process of corn-grain drying is usually conducted in such a way that corn grains come into a cooler zone at a moisture level that is 2.0% higher than the equilibrium level. As well as being cooled, the corn grains in the cooler zone also get dried by between 1.5% and 2.0%. However, our research has shown that this is not always the case, since corn grains are sometimes re-hydrated in the cooler zone by 0.65% to 4.26%. Our research also included an analysis of the moisture levels of corn grains in the horizontal section of the cooler zone. Depending on the location, the difference in the moisture levels of the corn grains varied from 1.99% to 4.35%, reaching as much as 10.0% in some extreme cases. This resulted in a higher energy consumption, a decrease in capacity and heterogeneously dried corn grainsPostopek sušenja koruznega zrnja običajno poteka tako, da zrnje vstopi v predel za ohlajevanje z vlaznostjo, ki je 2,0% nad ravnovesnim stanjem. Poleg tega, da se zrnje ohladi, se v predelu za ohlajevanje tudi osuši za 1,5% do 2,0%. Vendarle pa smo z naso raziskavo pokazali, da obstajajo tudi primeri, ko koruzno zrnje v predelu za ohlajevanje rehidrira za 0,65% do 4,26%. Naša raziskava je vključevala tudi analizo vlažnosti koruznega zrnja vzdolž vodoravnega prereza hladilnika. V odvisnosti od mesta zbiranja vzorcev je razlika v vlažnosti koruznih zrn nihala od 1,99% do 4,35% ter v nekaterih skrajnih primerih dosegla celo 10,0%. Ti pojavi so povzročili večjo porabo energije, zmanjšanje zmogljivosti susilnice in neenakomerno osušenost koruznega zrnjaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo