High FAME - High proportion of biogenic components in diesel fuel
Overview
Background & policy context:
The demand for higher blending rates of biogenic fuels in the international market takes them into focus more and more. Currently, the biogenic components in diesel fuel are covered mainly by fatty acid methyl ester (FAME). When using these biofuels various problems have been observed, which are mainly caused by the lower oxidation stability of FAMEs. Through strong fuel aging effects, the function of a fuel supply system in the car - from the tank to the injectors - are severely affected or at worst a failure of the internal combustion engine occurs.
Objectives:
For this reason, the Institute for Powertrains and Automotive Technology of the Vienna University of Technology evaluated the problem areas in this field systematically in the project " High FAME " together with its partner BMW engines Steyr GmbH.
Methodology:
In a first step, a heated and aerated tank system has been designed and constructed to explore the aging of fuels under defined conditions.
The thus aged fuels were then subjected to an examination at the test bench.
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