Research: Simulation of a fuel cell system
Fig. 1: Prototype of the fuel cell truck GenH2 (Source: Daimler Truck AG)
- Fuel cell vehicles are part of electromobility
- Power generation for electric motor by fuel cells in the vehicle while driving
- Primarily for trucks in heavy-duty traffic with a long range as an alternative to very large and therefore heavy batteries
- Improvement of efficiency and performance by simulating the operation of the fuel cell in combination with the directly necessary components in the vehicle
Peripheral system components: Gas supply (air and hydrogen).
Fig.2: Overview of the fuel cell system, on the left side the air supply and conditioning, on the right the hydrogen side. The fuel cell stack as the central element is located in between.
- Modelling of the relevant components: Compressors, valves, pumps, heat exchangers etc.
- Recording of steady-state operation and behaviour during load changes
- Validation of the component models on the basis of measured data
- Integration into an operating strategy, subsequent adaptation to the cell behaviour and the application case
Fuel cell and stack model: heart for the provision of electrical power.
Fig.3: Schematic structure of a fuel cell stack. The fuel cell (cathode, membrane and anode) is provided with a separate gas diffusion layer on both sides. The gas is supplied via the gas channels of the bipolar plates. These plates connect the cells connected in series to form a stack.
- Modelling of the electrochemical behaviour of the fuel cell
- Modelling of the fluid behaviour within the gas channels along the cell
- Temperature management of the stack using cooling water
- Validation based on test bench measurement data
|Development of a multiphysics model of the fuel cell stack.||
|Simulation of gas flow along low-temperature fuel cells (PEMFC) in operation.||Master thesis||
|Experimental studies on the influence of temperature and gas pressure on low-temperature fuel cells (PEMFC).||Master thesis|
|Electrochemical modeling of large-area low-temperature fuel cells (PEMFC).||Bachelor thesis||
Publications and Conference Contributions
T. Goosmann, S. Raab, P. Oppek, A. Weber, E. Ivers-Tiffée, „Impedance-Based, Multi-physical DC-Performance-Model for a PEMFC Stack”, 241st ECS Meeting, Vancouver, 29.05.2022-02.06.2022 (talk)
S. Raab, T. Goosmann, A. Weber, „Influence of three- dimensional flow field structures consisting of expanded metal meshes on the physicochemical loss processes in PEMFCs”, 241st ECS Meeting, Vancouver, 29.05.2022-02.06.2022 (talk)
P. Oppek, M. Geörg, T. Goosmann, A. Weber, T. Reshetenko, U. Krewer, „ Spatially Resolved Deconvolution of Loss Processes in PEM Fuel Cells”, 241st ECS Meeting, Vancouver, 29.05.2022-02.06.2022 (talk)
T. Goosmann, A. Weber, „Impedance-Based, Multi-physical DC-Performance-Model for a PEMFC Stack”, 18th Symposium on Fuel Cell and Battery Modelling and Experimental Validation – ModVal 18, Hohenkammer, 14.03.2022-16.03.2022 (talk)
T. Goosmann, M. Heinzmann, P. Oppek, K. Schwab, P. Föllmer, A. Weber, "Impedance-based, spatially resolved DC-Performance Model for PEMFC", 25th European Fuel Cell Forum, Online-Konferenz, 29.06. - 02.07.2021 (talk)
P. Oppek, T. Goosmann, J. Haußmann, A. Weber, „Methodology using design of experiments to maximize PEMFC performance”, 25th European Fuel Cell Forum, Online-Konferenz, 29.06.-02.07.2021 (talk)