Internal current collection and thermofluidynamic enhancement in a microtubular SOFC

Oujen Hodjati-Pugh, Aman Dhir, Robert Steinberger-Wilckens

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A low-cost, durable and simple internal current collector is presented for microtubular SOFCs (µT SOFC). The internal design does not require removal of external cell layers, and subsequent loss of active area required to expose the interior electrode for contacting. The brush-like, high surface area current collector device is adapted from heat exchanger turbuliser technology produced by CALGAVIN Ltd. The effectiveness of the hiTRAN® turbuliser as a µT-SOFC current collector is explored and its thermofluidynamic effects on the cell described, as well as coating of the hiTRAN® design to reduce electrical contact resistance. The final design achieved a current density at 0.7 V of 0.38 and peak power density of 0.27, 4.3 times higher than the original design and 3.3 times higher than the state-of-the-art with the same base materials.
Original languageEnglish
Article number121255
Number of pages11
JournalInternational Journal of Heat and Mass Transfer
Early online date5 Apr 2021
Publication statusE-pub ahead of print - 5 Apr 2021

Bibliographical note

Not yet published in issue as of 13/04/2021.


  • Interconnections
  • Microtubular SOFC
  • SOFC
  • anode contacting
  • turbulator

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fluid Flow and Transfer Processes
  • Materials Science (miscellaneous)


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