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Vključevanje goriv prihodnosti v pouk kemije : diplomsko delo
Konda, Mojca (Author), Ferk Savec, Vesna (Mentor) More about this mentor... This link opens in a new window

URLURL - Presentation file, Visit http://pefprints.pef.uni-lj.si/id/eprint/3071 This link opens in a new window

Abstract
V skladu z izsledki sodobnih raziskav je uporaba fosilnih goriv prepoznana kot glavni razlog za vse večje koncentracije toplogrednih plinov, predvsem ogljikovega dioksida. To se v okolju kaže z ekstremnimi vremenskimi spremembami, s smogom, poplavami, sušami, z učinkom tople grede ipd. Znanstveniki predvidevajo, da bo zalog nafte in zemeljskega plina zmanjkalo čez približno petdeset let. Manjšanje zalog fosilnih goriv pa prinaša višje cene goriv za prevozna sredstva. Alternativna goriva bodo v prihodnosti počasi nadomestila fosilna goriva. Zato se povečuje proizvodnja biodizla, ki ga v mešanici s fosilnim dizlom uporabljajo v nepredelanih dizelskih motorjih. Biodizel je biorazgradljiva, ekološka, obnovljiva in netoksična mešanica alkilnih estrov maščobnih kislin, s podobnimi fizikalnimi in kemijskimi lastnostmi kot fosilni dizel. V diplomskem delu je predstavljeno vključevanje goriv prihodnosti v pouk kemije. Analiza izbranih tujih in domačih delovnih zvezkov, učbenikov in priročnikov za pouk kemije nakazuje, da se o biodizlu kot gorivu prihodnosti v osnovni šoli premalo govori. Kljub ozaveščanju učencev o okoljskih težavah, povezanih z uporabo fosilnih goriv, je pojem biodizel možno zaslediti le v enem slovenskem učbeniku za kemijo, eksperimentalnega dela na to temo pa sploh ne. V diplomskem delu je bil preverjen in optimiziran izbrani postopek priprave biodizla, primeren za izvedbo v osnovni šoli. Izdelana je bila učna enota na podlagi operativnih učnih ciljev učnega načrta za kemijo v osnovni šoli s pripadajočimi navodili za učitelja in z delovnim listom za učenca.

Language:Slovenian
Keywords:biodizel, alternativna goriva, ekološki problemi, sinteza biodizla
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:PEF - Faculty of Education
Year:2015
Publisher:[M. Konda]
Number of pages:III, 27 str., [20] str. pril.
UDC:62-611:373.3(043.2)
COBISS.SI-ID:10716233 This link opens in a new window
Views:879
Downloads:234
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Secondary language

Language:English
Title:Introduction of »fuels of the future« in teaching chemistry
Abstract:
In accordance with modern researches, the usage of fossil fuels is the main cause of increased concentration of greenhouse gases, especially carbon dioxide. This is indicated by extreme weather changes, smog, floods, droughts, the green house effect etc. Scientists assume that the supplies of fossil fuel will run out in about 50 years. The decrease of fossil fuel supplies is increasing the price of vehicle fuels. Fossil fuels will be replaced with alternative fuels in the future. Therefore, the production of biodiesel, which is used in unmodified diesel engines in a fossil diesel blend, is increasing. Biodiesel is a biodegradable, ecological, renewable and non-toxic mixture of acyl esters with chemical and physical properties similar to fossil diesel. This paper is written about introduction of fuels of the future in chemistry teaching. Analysis of different Slovenian and English textbooks, workbooks and school books have shown, that there is little talk about biodiesel in primary schools. Although the students are aware of environmental problems and the usage of fossil fuels, the notion biodiesel can be found just in one Slovenian textbook. No experimental work associated with biodiesel synthesis can be found either. A procedure of biodiesel synthesis suitable for primary schools has been tested and optimised in this paper. Based on the operational didactic goals of the chemistry curriculum for primary schools, the experiment has been made into a teaching unit that includes worksheets for students and instructions for the teacher.

Keywords:biodiesel

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