20.500.12556/DKUM-39034 VPLIV RAZLIČNIH DEJAVNIKOV NA PORABO GORIVA PRI KOŠNJI S TRAKTORSKO KOSILNICO THE EFFECT OF VARIOUS FACTORS ON FUEL CONSUMPTION DURING MOWING WITH TRACTOR MOWER Za rejce govejih živali predstavlja košnja trave eno ključnih opravil od pomladi do jeseni. Število košenj je odvisno od intenzivnosti kmetovanja, vendar predstavlja košnja trave časovno in stroškovno velik zalogaj za kmetovalca. Namen diplomskega dela je preučiti, kako moramo nastaviti parametre košnje, da bomo določeno površino pokosili v najkrajšem času in bomo za to porabili najmanj goriva, saj je le to iz dneva v dan dražje. V bločnem poljskem poizkusu smo preučevali, kako vpliva število vrtljajev motorja in priključne gredi na porabo goriva in ali se splača pred košnjo zamenjati nože na kosilnem grebenu kosilnice kljub relativno visoki ceni. Ob upoštevanju dobljenih izračunov lahko z gotovostjo trdimo, da ima spreminjanje vrtljajev motorja in priključne gredi manjši vpliv na porabo goriva kot zamenjava starih nožev kosilnega grebena kosilnice z novimi. Mowing the grass from spring to autumn is one of the key tasks for each beef cattle breeder. The number of cuts depends on the intensity of farming; however cutting the grass takes a lot of precious time and money. The main purpose of this diploma thesis is to study different parameters of cutting in order to mow a given area in the best time possible. With increasing concern for fuel conservation, farmers wish to reduce the amount of fuel required to perform specific farming operations. In a random block field trial we studied the impact of engine speed, the PTO speed and new cutting blades on the fuel consumption. We must also take into consideration that the price of blades is relatively high. Taking into account the calculations, we are certain now, that the engine speed and the PTO speed do not affect the fuel consumption as much as the replacement of old knives on a cutter bar with the new ones. Ključne besede: traktor / traktorska kosilnica / traktorska priključna gred / vrtljaji motorja traktorja / vrtljaji traktorske priključne gredi / poraba goriva Keywords: tractor / mower / PTO / engine speed / rpm PTO / fuel consumption true true false Slovenski jezik Angleški jezik Diplomsko delo 2012-11-21 09:31:19 2012-11-30 14:56:35 2022-05-04 13:59:15 2021-04-21 03:15:49 2012 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:E8MY8FYJ VS_Pepelnak_Igor_2012.pdf VS_Pepelnak_Igor_2012.pdf 1 BB39F6BBE5B948A19E3FD771C8DC677F 6335855c7e3776bd96b13be4dc1326bd2bada10785d23bbde37d9d8e98d98fc0 4f17b287-7c07-11eb-bb7a-00155d0001ca 20.500.12556/dkum/df9a1242-32f0-4ef5-886a-f3e383225dec https://dk.um.si/Dokument.php?lang=slv&id=52490 Fakulteta za kmetijstvo in biosistemske vede 0 0 0