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Title:BIOGORIVA
Authors:ID Trs, Tea (Author)
ID Aberšek, Boris (Mentor) More about this mentor... New window
Files:.pdf UNI_Trs_Tea_2011.pdf (7,82 MB)
MD5: B2F702E822C0F15BBE95FCC067D569F2
PID: 20.500.12556/dkum/9460153d-4cee-4d51-9e53-6ece8bea1dd8
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FNM - Faculty of Natural Sciences and Mathematics
Abstract:Predstavljam vam nalogo, ki govori o prihodnosti energentov za splošno uporabo. Odvisnost človeštva od fosilnih goriv se mora sčasoma končati. Predstavila bom trenutno alternativo tem gorivom, njihovo pridelavo in uporabo ter argumentirala njihov vpliv na okolje. Kot temeljna goriva se uporabljajo fosilna goriva, vendar je težava v tem, da se ne obnavljajo tako hitro, kot jih porabljamo. Zaloge le-teh so omejene, po nekaterih predvidevanjih na 30 do 50 let. Fosilna goriva imajo tudi zelo velik vpliv na okolje, saj povzročajo onesnaževanje okolja, globalno segrevanje ter povečevanje ozonske luknje. Zaradi tega iščemo alternativna goriva, predvsem obnovljive energente, kamor sodijo tudi biogoriva, ki pa imajo tako prednosti kot tudi slabosti. Krivimo jih za pomanjkanje in zviševanja cen hrane, po drugi strani nismo enotnega mnenja o emisijah toplogrednih plinov in tudi ne, ali so boljša od fosilnih goriv ali ne. Države Evropske unije so sprejele direktive o vsebnosti biogoriv kot pogonskih goriv v določenih odstotkih po posameznih obdobjih med leti 2005 in 2020. A države, med njimi tudi Slovenija, še niso naredile bistvenih premikov. Da bi lahko točili biogoriva, bi morali na večjih površinah vzgajati temu primerno kulturo. Pri nas je najbolj razširjena surovina za proizvodnjo olja oljna ogrščica, ki je v primerjavi s sončnico in sojo tudi količinsko najizdatnejša. Pri tem se postavlja tudi vprašanje monokultur in zmanjševanja površin za pridobivanje hrane. Biogoriva delimo na tekoča (biodizel, rastlinsko olje), plinasta (bioplin, bioetanol) in trda (lesna biomasa). Poznamo še druge vrste biogoriv, vendar niso toliko razvita in jih zaradi tega v nalogi nisem podrobneje predstavila. V sklopu diplomske naloge je nakazano tudi, kje v učnih načrtih tehnike in tehnologije v osnovni šoli bi lahko vnesli biogoriva, narejena je PPT predstavitev ter delovni list.
Keywords:Biogoriva, biodizel, bioplin, bioetanol, lesna biomasa, rastlinsko olje, vpliv biogoriv na ljudi in okolje.
Place of publishing:Maribor
Publisher:[T. Trs]
Year of publishing:2011
PID:20.500.12556/DKUM-17560 New window
UDC:62(043.2)
COBISS.SI-ID:18198280 New window
NUK URN:URN:SI:UM:DK:AWS4YMUQ
Publication date in DKUM:09.03.2011
Views:6986
Downloads:1113
Metadata:XML DC-XML DC-RDF
Categories:FF
FNM
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Secondary language

Language:English
Title:BIOFUELS
Abstract:This diploma thesis is about the future of fuels for common use. Humankind's dependency on fossil fuels must come to an end soon. This paper presents the current alternative to fossil fuels, their production and use, and explores their impact on the environment. Fossil fuels are used as main fuels; however, the problem is that they cannot be renewed as quickly as they are used up. Supplies are limited and, according to some estimations, will only suffice for the next 30 to 50 years. Fossil fuels can also have a large impact on the environment because they cause pollution, global warming and the increasing ozone hole. As a result, alternative fuels are being sourced, mostly from renewable energy sources, such as biofuels, which have both advantages and disadvantages. While they are blamed for shortages and increasing prices of food, opinions on greenhouse emissions are just as diverse as the opinions on whether biofuels are better than fossil fuels or not. The countries of the European Union adopted directives on the level of biofuels used as motor fuels in certain percentages for individual periods of time between 2005 and 2020. However, some countries, among them Slovenia, have not made any significant changes yet. In order to be able to tank biofuels, suitable cultures would have to be grown on larger areas. The most common raw product for making oil is rapeseed, which, compared to sunflower and soy, is also the most yielding. Biofuels can be liquids (biodiesel, vegetable oil), gases (biogas, bioethanol) or solids (wood biomass). There are also other types of biofuels which are not as developed and have not been included in this thesis in more detail. The present thesis also deals with how to include biofuels in teaching plans for technics and technology in primary schools, a PPT presentation and a worksheet have been compiled.
Keywords:Biofuels, biodiesel, biogas, bioethanol, wood biomass, vegetable oil, influence of biofuels on people and environment.


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