Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Planar and tubular solid oxide fuel cells: A comparison of transient process behaviors

Författare

  • Miriam Kemm
  • Christoph Stiller
  • Azra Selimovic
  • Bjorn Thorud
  • Tord Torisson
  • Olav Holland

Summary, in English

Two typical configurations of solid oxide fuel cells (SOFCs) are planar cross-flow and tubular counter-flow. Even though their performance is based on the same physical principles, their operation characteristics and parameters vary considerably due to different geometries. The goals of this paper are to detect the particularities of the cell geometries at transient operation and to identify their applicability for stationary power generation. This has been achieved by investigating the thermal and electrochemical performance of a planar and a tubular cell at different operation modes, i.e. load change, start-up, and shut-down. As the most relevant results of the transient SOFC analysis, the comparison of relaxation times and transient temperature gradients within the cell as well as the transients of the power density are presented and discussed. Relaxation times for different processes are shorter for the planar geometry, caused by its compactness. However, due to its longer spatial extension the tubular geometry is more advantageous concerning the level of temperature gradients within the cell.

Avdelning/ar

Publiceringsår

2005

Språk

Engelska

Sidor

659-669

Publikation/Tidskrift/Serie

Solid Oxide Fuel Cells: SOFC IX

Volym

PV 2005-07

Dokumenttyp

Konferensbidrag

Förlag

Electrochemical Society

Ämne

  • Energy Engineering

Nyckelord

  • Power density
  • Transient temperature
  • Tubular counter-flow
  • Tubular cells

Conference name

9th International Symposium on Solid Oxide Fuel Cells, SOFC IX

Conference date

2005-05-15 - 2005-05-20

Conference place

Quebec, Canada

Status

Published

ISBN/ISSN/Övrigt

  • ISBN: 1566774659