Skip to Main content Skip to Navigation
Journal articles

Modeling of a thermally integrated 10 kW(e) planar solid oxide fuel cell system with anode offgas recycling and internal reforming by discretization in flow direction

Abstract : Combined heat and power production (CHP) based on solid oxide fuel cells (SOFC) is a very promising technology to achieve high electrical efficiency to cover power demand by decentralized production. This paper presents a dynamic quasi 2D model of an SOFC system which consists of stack and balance of plant and includes thermal coupling between the single components. The model is implemented in Modelica (R) and validated with experimental data for the stack Ul-characteristic and the thermal behavior. The good agreement between experimental and simulation results demonstrates the validity of the model. Different operating conditions and system configurations are tested, increasing the net electrical efficiency to 57% by implementing an anode offgas recycle rate of 65%. A sensitivity analysis of characteristic values of the system like fuel utilization, oxygen-to-carbon ratio and electrical efficiency for different natural gas compositions is carried out. The result shows that a control strategy adapted to variable natural gas composition and its energy content should be developed in order to optimize the operation of the system.
Document type :
Journal articles
Complete list of metadatas

https://hal.univ-lorraine.fr/hal-01267207
Contributor : Lrgp Ul <>
Submitted on : Thursday, February 4, 2016 - 10:10:33 AM
Last modification on : Friday, September 4, 2020 - 12:24:04 PM

Links full text

Identifiers

Collections

Citation

Stefanie Wahl, Ana Gallet Segarra, Peter Horstmann, Maxime Carre, Wolfgang G. Bessler, et al.. Modeling of a thermally integrated 10 kW(e) planar solid oxide fuel cell system with anode offgas recycling and internal reforming by discretization in flow direction. Journal of Power Sources, Elsevier, 2015, 279, pp.656-666. ⟨10.1016/j.jpowsour.2014.12.084⟩. ⟨hal-01267207⟩

Share

Metrics

Record views

196