Review of the micro-tubular solid oxide fuel cell

Lawlor, V.; Griesser, Stefan; Buchinger, G.; Olabi, Abdul–Ghani; Cordiner, Stefano; Meißner, D.

doi:10.1016/j.jpowsour.2009.02.085

Cited by 209 publications

(45 citation statements)

References 47 publications

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“…Micro-tubular SOFCs have attracted great interest in the recent years [18,19,20]. Advantages of micro-tubular SOFCs include increased power density per unit volume, shorter times to start-up and shutdown (rapid thermal cycling), easy sealing and less redox cycling damage.…”

Section: Introductionmentioning

confidence: 99%

Performance and Aging of Microtubular YSZ‐based Solid Oxide Regenerative Fuel Cells

et al. 2010

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Fuel electrode supported microtubular solid oxide fuel cells (SOFC) fabricated at ICMA have been characterized in both solid oxide steam electrolyser (SOEC) and fuel cell modes. The cells consists of a fuel electrode supporting tube of Ni/YSZ with 40% porosity, 400 µm thickness, 2.4 mm diameter and 100-150 mm length, a 15 m thick YSZ electrolyte and a 50vol% LSM/YSZ composite air electrode of 20 m thickness and LSM/YSZ (80/20 vol%) up to 2 cm 2 area as current collector in the air side. Platinum paste and wires were used as interconnectors in the air chamber and Ni felt in the fuel side.SOFC and SOEC experiments were performed at temperatures between 750 and 950 ºC using synthetic air in the oxygen electrode and different partial pressures of steam in the fuel side. Analysis of the polarization contributions to the j-V curve in FC operation mode was performed using theoretical models, as discussed in the text. The effect of the steam concentration and temperature on the electrolysis and fuel cell experiments is presented and discussed. The cells are reversible in both modes of operation at low fuel conversion rates. According with previous observations, when cells are operated at high steam conversion rates the cell voltage tends to saturate. Irreversible damage was observed by SEM at the YSZoxygen electrode interface after operation, probably due to the electrolyte reduction produced at high voltages.

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Section: Introductionmentioning

confidence: 99%

Performance and Aging of Microtubular YSZ‐based Solid Oxide Regenerative Fuel Cells

et al. 2010

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“…In the early 1990s micro-tubular high temperature solid oxide fuel cells (MT-SOFCs) were first introduced by a research group under Professor Kevin Kendall [1]. Those cells have, in general, a diameter of no more than 10 mm and are operated in a temperature range of 500e1000 C, which is based on the supporting structure of the cell and the used materials.…”

Section: Introductionmentioning

confidence: 99%

“…Those cells have, in general, a diameter of no more than 10 mm and are operated in a temperature range of 500e1000 C, which is based on the supporting structure of the cell and the used materials. MT-SOFCs can be used in a variety of applications, for instance as "auxiliary power units, automotive power supplies, mobile electricity generators and battery re-chargers" [1]. MT-SOFCs are able to achieve high electrical efficiencies [2,3], while showing long term stability [2,4] due to enhanced thermal cycling performance with rapid start-up and shut-down capabilities [2,4e6] and high thermal shock resistance [1,5,6].…”

Section: Introductionmentioning

confidence: 99%

“…MT-SOFCs can be used in a variety of applications, for instance as "auxiliary power units, automotive power supplies, mobile electricity generators and battery re-chargers" [1]. MT-SOFCs are able to achieve high electrical efficiencies [2,3], while showing long term stability [2,4] due to enhanced thermal cycling performance with rapid start-up and shut-down capabilities [2,4e6] and high thermal shock resistance [1,5,6]. Additionally, MT-SOFCs are highly fuel flexible [1,2], including the capability to be operated in a pure internal reforming mode [1,3].…”

Section: Introductionmentioning

confidence: 99%

“…MT-SOFCs are able to achieve high electrical efficiencies [2,3], while showing long term stability [2,4] due to enhanced thermal cycling performance with rapid start-up and shut-down capabilities [2,4e6] and high thermal shock resistance [1,5,6]. Additionally, MT-SOFCs are highly fuel flexible [1,2], including the capability to be operated in a pure internal reforming mode [1,3]. MT-SOFCs have low emissions of carbon dioxide and criteria pollutants [2] and the production processes have the potential to deliver technical solutions at low costs [4,7].…”

Section: Introductionmentioning

confidence: 99%

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Dynamic model of a micro-tubular solid oxide fuel cell stack including an integrated cooling system

Hering

Brouwer

Winkler

2017

Journal of Power Sources

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h i g h l i g h t sQuasi three-dimensional, micro-tubular solid oxide fuel cell and stack model. Spatially resolved, transient thermodynamic, physical and electrical model. Model includes an integrated cooling system. Model accounts for complex geometry between cells and cooling-tubes. Detailed temperature based gas properties calculations. a r t i c l e i n f o t r a c tA novel dynamic micro-tubular solid oxide fuel cell (MT-SOFC) and stack model including an integrated cooling system is developed using a quasi three-dimensional, spatially resolved, transient thermodynamic, physical and electrochemical model that accounts for the complex geometrical relations between the cells and cooling-tubes. The modeling approach includes a simplified tubular geometry and stack design including an integrated cooling structure, detailed pressure drop and gas property calculations, the electrical and physical constraints of the stack design that determine the current, as well as control strategies for the temperature. Moreover, an advanced heat transfer balance with detailed radiative heat transfer between the cells and the integrated cooling-tubes, convective heat transfer between the gas flows and the surrounding structures and conductive heat transfer between the solid structures inside of the stack, is included. The detailed model can be used as a design basis for the novel MT-SOFC stack assembly including an integrated cooling system, as well as for the development of a dynamic system control strategy. The evaluated best-case design achieves very high electrical efficiency between around 75 and 55% in the entire power density range between 50 and 550 mW=cm 2 due to the novel stack design comprising an integrated cooling structure.

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Electrodes for High‐Temperature Electrochemical Cells: Novel Materials and Recent Trends

Tsipis

Хартон

2011

Solid State Electrochemistry II

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Review of the micro-tubular solid oxide fuel cell

Cited by 209 publications

References 47 publications

Performance and Aging of Microtubular YSZ‐based Solid Oxide Regenerative Fuel Cells

Performance and Aging of Microtubular YSZ‐based Solid Oxide Regenerative Fuel Cells

Dynamic model of a micro-tubular solid oxide fuel cell stack including an integrated cooling system

Electrodes for High‐Temperature Electrochemical Cells: Novel Materials and Recent Trends

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