Project meeting of STEP at the site of the company ATS - Agro Trading & Solutions in Hardegsen (Photo: DBFZ)

Heat | Power | CHP | Biomass technologies | Validation market potential

Project ID 03KB112

FlexSOFC - Improved Utilization of Intermittent Low Calorific Producer Gases in SOFCs

Inverter (Poto: NOVUM)

Duration

  • 01.08.2016 – 30.04.2020

Contact

Fraunhofer Institute for Solar Energy Systems ISE
Heidenhofstr. 2
79110 Freiburg im Breisgau

Prof. Jürgen Karl – project manager
Telephone: +49 (0)911 5302 9021
E-mail: juergen.karl‍@‍fau.de

Tobias Herrmann – project coordinator
Telephone: +49 (0)911 5302 9022
E-mail: tobias.herrmann‍@‍fau.de

Marius Dillig – further contact person
Telephone: +49 (0)911 5302 9029
E-mail: marius.dillig‍@‍fau.de

Partner

03KB112B - NOVUM engineerING GmbH

Associated partners

Cooperation partners

03KB112 - Spanner Re² (Renewable Energy Experts) GmbH

Subpartner

03KB112 - Fraunhofer Institute for Solar Energy Systems ISE

Subject

The project focuses on the integration of Solid Oxide Fuel Cells with biomass gasification. This combination is tar-tolerant, electrically efficient and highly promising for decentralized cogeneration of heat and power. However, the fluctuating nature of the producer gas can severely contribute to the degradation of the fuel cell. Goal of the project is the identification of critical SOFC operation conditions by means of impedance spectroscopy. The diagnostic feature is implemented through the power inverter.

Aim

Goal of the project is the identification of critical SOFC operation conditions by means of impedance spectroscopy. The diagnostic feature is implemented through the power inverter.

Measures

Universität Erlangen-Nürnberg
Within the project the existing 1 kW SOFC stack at the Chair of Energy Process Engineering is adapted to the utilization with synthetic producer gas. Electrochemical impedance spectroscopy will be integrated in the control system to encounter critical cell conditions.

NOVUM engineerING GmbH
The Dresden based company NOVUM Engineering GmbH designs a tailor-made power inverter for the EVT-stack. From the low-noise real-time impedance data of the inverter, critical stack conditions can be identified.

Focus

Universität Erlangen-Nürnberg

  • Test rig development
  • Development of methods for the identification of critical stack operation conditions
  • Implementation of control strategies to ensure safe operation of biomass driven SOFC systems
  • Real gas operation at a biomass gasifier

NOVUM engineerING GmbH

  • Design of a power inverter with integrated online impedance spectroscopy
  • Evaluation of marketability
  • Economic feasibility study
Stack test facility at Chair of Energy Process Engeneering of the Friedrich-Alexander university Erlangen-Nuremberg (Photo: FAU)

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