Volltext-Downloads (blau) und Frontdoor-Views (grau)

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

  • 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 inCombined 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® and validated with experimental data for the stack UI-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.show moreshow less

Export metadata

Additional Services

Search Google Scholar

Statistics

frontdoor_oas
Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/1861
Bibliografische Angaben
Title (English):Modeling of a thermally integrated 10 kWe planar solid oxide fuel cell system with anode offgas recycling and internal reforming by discretization in flow direction
Conference:International Conference on Lead-Acid Batteries (9. : 10-13 June 2014 : Albena, Bulgaria)
Author:Stefanie Wahl, Ana Gallet Segarra, Peter Horstmann, Maxime Carré, Wolfgang G. BesslerStaff MemberORCiDGND, François Lapicque, Kaspar Andreas Friedrich
Year of Publication:2015
Publisher:Elsevier
First Page:656
Last Page:666
Parent Title (English):Journal of Power Sources
Volume:279
Issue:4
ISSN:0378-7753
DOI:https://doi.org/10.1016/j.jpowsour.2014.12.084
Language:English
Inhaltliche Informationen
Institutes:Forschung / INES - Institut für nachhaltige Energiesysteme (bis 18.11.2021: Institut für Energiesystemtechnik)
Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
GND Keyword:Abgas; Dimension 2; Diskretisierung; Festoxidbrennstoffzelle; Modellierung; Recycling
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt