Abstract
Since 2011 gasoline is blended with bioethanol (5–10 Vol.-%) to comply with the biofuel quota required by law. To examine the influence of the bioethanol additive on the functionality of the fuel vapour restraint systems a suitable test facility is designed. This test facility enables automated long-term tests lasting several weeks. As a result, the adsorption behaviour of the activated carbon filters is examined by the used sensors for multiple ad- and desorption cycles even in case of multicomponent mixtures.
Zusammenfassung
Seit 2011 werden 5–10 Vol.-% Bioethanol dem fossilen Ottokraftstoff beigemischt, um die gesetzlich vorgeschriebene Biokraftstoffquote zu erfüllen. Um den Einfluss des Bioethanol-Zusatzes auf die Funktionstüchtigkeit der Kraftstoffdampfrückhaltesysteme untersuchen zu können, wurde eine geeignete Versuchsanlage konzipiert. Mit dieser Anlage sind automatisierte Langzeitmessungen über mehrere Wochen möglich, so dass das Adsorptionsverhalten des Aktivkohlefilters auch für ein Mehrkomponentengemisch mit Hilfe der verschiedenen Sensoren genau erfasst werden kann.
Funding source: Bundesministerium für Ernährung und Landwirtschaft
Award Identifier / Grant number: 1/22403015
Award Identifier / Grant number: 2/22403115
Funding statement: This work was financially supported by the Federal Ministry of Food and Agriculture (BMEL) on the basis of a decision by the German Parliament (Grant 1/22403015, 2/22403115).
About the authors
Mrs. Eva Schieferstein received a PhD degree in Physical Chemistry from the University Essen. Since 2001 she is a specialist for the topic „adsorption“ at the Fraunhofer Institute UMSICHT.
Dipl.-Ing. Karl Meller studied industrial engineering at the University of Applied Sciences of Münster. He works more than 20 years as a chemical engineer at Fraunhofer UMSICHT.
Mr. Juergen Graen-Heedfeld received a PhD degree in Chemical Engineering from the Technical University of Dortmund. Since 1991 he works as a scientist at the Fraunhofer-Institute for Environmental, Safety and Energy Technology UMSICHT in various scientific and engineering projects in terms of process engineering, safety engineering and transformation processes.
Since 1988, M. Ulrich Göbel has been working as a laboratory engineer at the Institute for Fluid- and Thermodynamics at the Faculty IV (Science and Technology), University of Siegen.
Ingo Schmitz received in 2006 his doctor’s degree in engineering at the Institute of Technical Thermodynamics (LTT) of the FAU-Erlangen/Nuremberg. From April 2007 until November 2011 he was senior scientist at the LTT. Since December 2011 he is akademischer Rat at the chair of Engineering Thermodynamics at the Faculty IV (Science and Technology), University of Siegen.
1981–84 Ass. Prof. Chemical Thermodynamics, Technical University Berlin (West). 1984–2006 Full Prof. Engineering Thermodynamics, University of Siegen, D-57076 Siegen. 1986–2014 Founding Editor in Chief, Journal of Non-Equilibrium Thermodynamics, W. de Gruyter, Berlin–New York.
Since 2010 is Prof. Dr.-Ing. Thomas Seeger full Professor for Engineering Thermodynamics at the Faculty IV (Science and Technology), University of Siegen.
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