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DIESEL FUELS IN AGRICULTURE

Zlatko Posavec
Tugomir Majdak


Puni tekst: hrvatski pdf 122 Kb

str. 45-50

preuzimanja: 557

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Puni tekst: engleski pdf 122 Kb

str. 51-56

preuzimanja: 1.147

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Sažetak

Abstract
European directives on the quality of motor fuels impose certain quality limitations, for the purpose of environmental protection. The principal undesired fuel components are benzene, total aromatics, polycyclic aromatics, olefins, sulphur – whose engine combustion generates environmentally harmful exhaust gas components.
Over the past twenty years, the amount of sulphur in diesel fuel was reduced for about sixty times, as required by the European standard EN 590. Today’s sulphur level of 50 mg/kg is not the one ultimately required, but, as of 01/01/2009/, it shall be 10 mg/kg, which is considered as sulphur-free fuel.
Reduction of sulphur in motor fuels is the simplest way of reducing pollutant emission of the entire vehicle pool, although in itself still insufficient. Sulphur has a slight impact on the chemical composition of exhaust gases with regard to the generation of solid sulphate particles. Its greatest harmful impact consists in rendering catalytic converters in the systems for treating exhaust gases and diagnostic systems of the combustion process. Such a situation is true of all motor vehicles, regardless of the engine type.
Agricultural machinery does not have exhaust gas treatment systems, so that pollution control proceeds mostly through the limitation of the fuel sulphur content. European directives advise the EU members, among other things, to ensure a certain volume of fuel with reduced sulphur content for agricultural machinery on their territory, over a given period of time. From the implemented analysis of EU directives and standards, HR standards and regulations, acts, books of rules on fuels and instructions of agricultural machinery manufacturers, criteria have been set for chosing the necessary fuel quality on Croatian market, for a given type of consuming devices, followed by recommendations and conclusions. Given the preliminary negotiations of Croatia’s joining of the EU, especially in the segment of agriculture and ecology, it is of an outmost importance to incorporate it adequately and timely into legal regulations.

Ključne riječi

engines for agricultural machines; diesel fuel, sulfur content; EU programme for clean motor fuel 2007-2009

Hrčak ID:

9373

URI

https://hrcak.srce.hr/9373

Datum izdavanja:

9.3.2007.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.618 *