Improved Tank in Series Model for the Planar Solid Oxide Fuel Cell
MetadataShow full item record
Models of different complexity are required in the iterative process of designing a solid oxide fuel cell (SOFC). Models having less complexity and computational dexterity are the ideal ones at the early stages. This work presents the development of an improved tank in series reactor model of the SOFC operating in cocurrent, countercurrent, and cross-current flow directions. The model, which accounts for the charge balances in the electrodes and electrolyte in addition to the component balances and the energy balances, is used for simulating the potentiostatic operation of the cell. The simulation results from the TSR model indicate the influence of flow direction on the steady state and dynamic performances of the cell. Among different flow directions, the coflow case is the most favorable for the planar SOFC, with improved performance. In response to a voltage step increase, the coflow case provides the most uniform transient behavior at different points of the cell. Despite the coflow direction, in which temperature dominates the slow dynamics of the local current density, in the low temperature regions of the counterflow and cross-flow cases, the slow dynamics of the current density tends to be characterized by the initial undershoot followed by a slower transient response that is due to the combined effects of the diffusion resistance within the porous electrode, hydrogen accumulation toward the fuel outlets, and the influence of the PEN temperature.
The website for Industrial & Engineering Chemistry Research is at <a href="http://pubs.acs.org/journal/iecred">http://pubs.acs.org/journal/iecred</a>
Showing items related by title, author, creator and subject.
Numerical modelling of molten carbonate fuel cell: Effects of gas flow direction in anode and cathodeTay, C.; Law, Ming (2014)The modelling of a three-dimensional (3-D) molten carbonate fuel cell (MCFC) was developed to study the effects of gas flow direction (co-flow and counter-flow) in anode and cathode on the generated power density by solving ...
Numerical Modelling of Molten Carbonate Fuel Cell: Effects of Gas Flow Direction in Anode and CathodeTay, Chen Lim; Law, Ming (2014)The modelling of a three-dimensional (3-D) molten carbonate fuel cell (MCFC) was developed to study the effects of gas flow direction (co-flow and counter-flow) in anode and cathode on the generated power density by solving ...
Hosseini, Shahin; Vijay, Periasamy; Ahmed, Khaliq; Tade, Moses; Pareek, Vishnu; Utikar, Ranjeet (2017)A dynamic tank in series reactor model of a direct internally reforming solid oxide fuel cell is presented and validated using experimental data as well as a computational fluid dynamics (CFD) model for the spatial profiles. ...