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Internal current collection and thermofluidynamic enhancement in a microtubular SOFC
Hodjati-Pugh, O Dhir, A Steinberger-Wilckens, R
Hodjati-Pugh, O
Dhir, A
Steinberger-Wilckens, R
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2021-04-05
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Abstract
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 A.cm and peak power density of 0.27 W.cm , 4.3 times higher than the original design and 3.3 times higher than the state-of-the-art with the same base materials.
Citation
Hodjati-Pugh, O., Dhir, A. and Steinberger-Wilckens, R. (2021) Internal current collection and thermofluidynamic enhancement in a microtubular SOFC. International Journal of Heat and Mass Transfer, 173, 121255.
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Journal article
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en
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This is an accepted manuscript of an article published by Elsevier in International Journal of Heat and Mass Transfer, available online: https://doi.org/10.1016/j.ijheatmasstransfer.2021.121255
The accepted version of the publication may differ from the final published version.
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0017-9310
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This work was supported by the Centre for Doctoral Training (CDT) in Fuel Cells and their Fuels, which is part-funded by the EPSRC under contract EP/L015749/1.