Development of a highly efficient micro-scale CHP system based on fuel-flexible gasification and a SOFC

Conference paper (2017)

Authors

Thomas Brunner BIOS Bioenergiesysteme
Thomas Götz Wuppertal Institute for Climate
William Zappa Universiteit Utrecht
Ingwald Obernberger BIOS Bioenergiesysteme
Michael Kerschbaum Windhager Zentralheizung Technik
P.V. Aravind Energy Technology - Mechanical, Maritime and Materials Engineering
Stefan Megel Fraunhofer-Institut für Keramische Technologien und Systeme IKTS
Martin Hauth AVL List GmbH
Research Group
Energy Technology (Mechanical, Maritime and Materials Engineering) (TU Delft)
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Published Date

2017

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Energy Technology

Abstract

During recent years comprehensive work has been done on the development of small-scale solid biomass based combined heat and power generation technologies but still only few systems are available, their efficiencies are rather moderate, their fuel flexibility is restricted and their market penetration is poor. Against this background, the on-going Horizon 2020 project FlexiFuel-SOFC aims at the development of a new, highly efficient and fuel-flexible micro-scale biomass CHP technology for a capacity range of 25 to 150 kW (fuel power). The technology consists of an updraft gasifier, a gas cleaning system and a solid oxide fuel cell (SOFC). The new technology is developed with a main focus on (i) the further development of a small-scale fixed-bed updraft gasifier technology towards higher fuel flexibility and integration into the SOFC based CHP system, (ii) the development of a novel and compact gas cleaning unit and (iii) the further development of a SOFC system (stack efficiency of ~40 % with product gas from the updraft gasifier). A first testing plant has been designed, constructed and is presently taken into operation.