Modeling, simulation and optimization of a no-chamber solid oxide fuel cell operated with a flat-flame burner

Vogler, Marcel; Horiuchi, Michio; Bessler, Wolfgang G.

doi:10.1016/j.jpowsour.2010.04.030

Cited by 27 publications

(22 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Coking is also influenced by fuel type, for example a cell operated in direct methanol flame showed stable performance over 30 h, whereas a similar cell operated with ethanol flame failed very quickly due to carbon deposition on the anode [8]. Direct-flame SOFCs have been operated with a wide variety of burner configurations, including jet burner tube which provides a simple setup and stable flame [19], micro-jet flame [7], multi-element diffusion flame burner [16], and flat flame burner [28] which provides very uniform temperature and concentration distributions across the cell area.…”

Section: Introductionmentioning

confidence: 99%

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Tucker

Ying

2017

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Metal-supported solid oxide fuel cells (MS-SOFC) with infiltrated catalysts on both anode and cathode side are operated in direct-flame configuration, with a propane flame impinging on the anode. Placing thermal insulation on the cathode dramatically increases cell temperature and performance. The optimum burner-to-cell gap height is a strong function of flame conditions. Cell performance at the optimum gap is determined within the region of stable non-coking conditions, with equivalence ratio from 1 to 1.9 and flow velocity from 100 to 300 cm s . The cell starts to produce power within 10 s of being placed in the flame, and displays stable performance over 10 extremely rapid thermal cycles. The cell provides stable performance for >20 h of semi-continuous operation.

show abstract

Section: Introductionmentioning

confidence: 99%

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Tucker

Ying

2017

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

show abstract

“…This is a significant challenge in a dual chamber configuration in which the fuel cells are sealed to create separate fuel and oxidant chambers (Milcarek et al, 2016e;Milcarek et al, 2016f). To avoid the sealing challenges a single chamber configuration (Priestnall et al, 2002;Raz et al, 2002;Riess 2008;Riess et al, 1995) and a no-chamber, Direct Flame Fuel Cell (DFFC) (Endo and Nakamura 2014;Horiuchi et al, 2004;Kronemayer et al, 2007;Sun et al, 2010;Vogler et al, 2010;Wang et al, 2008;Wang et al, 2015;Wang et al, 2011;Wang et al, 2014b;Wang et al, 2013;Yu-guang Wang et al, 2014;Wang et al, 2014a;Zhu et al 2012), have been proposed. While the DFFC configuration can perform rapid startup and thermal cycling, challenges persist with low fuel utilization, electrical efficiency, and thermal stresses due to an uneven temperature distribution of the flame over the fuel cell surface (Wang et al, 2015(Wang et al, , 2011Wang et al, 2014b).…”

Section: Introductionmentioning

confidence: 99%

Micro-tubular flame-assisted fuel cells

Milcarek

Garrett

Ahn

2017

JFST

View full text Add to dashboard Cite

Micro-tubular solid oxide fuel cells operating in fuel-rich combustion exhaust are explored in this work and their benefits in reducing the balance of plant in fuel cell systems is discussed. The current state of performance of these micro-tubular flame-assisted fuel cells operating with methane fuel is described and the benefits of operating in propane fuel are explored. An experimental investigation of propane combustion at different fuel/air equivalence ratios is conducted. Temperature measurements of the propane combustion are recorded with thermocouples while the gas species present in the exhaust are measured with a gas chromatograph. Propane is found to have advantages over methane due to a higher upper flammability limit and higher percentages of hydrogen and carbon monoxide, i.e. syngas, generated in the combustion exhaust. A micro-tubular flame-assisted fuel cell is tested using the four probe technique in model propane combustion exhaust at different equivalence ratios and temperatures. A method for comparing the performance of the fuel cell in the combustion exhaust to a hydrogen fuel baseline is developed and comparisons are made. The benefits of operating in propane compared to methane are explored with the potential for fuels like propane and butane being distinguished by their higher upper flammability limits and potential for higher concentrations of syngas in the combustion exhaust.

show abstract

“…Although a radiation correction has been performed, there is still some uncertainty in the absolute values, as is generally the case with thermocouple measurement of flame temperature. Flame simulations and modeling were studied by Horiuchi and Kronemayer et al (5,13,16) to calculate equilibrium gas compositions and adiabatic flame temperature of methane/air flames using Cantera thermodynamic simulation software (15). A similar approach was followed in this study to calculate the equilibrium gas compositions and adiabatic flame temperature of ethylene/air flames for φ = 0.5 -2.4, and to identify the fuel species available for the SOFC in the combustion product mixture.…”

Section: Flame Temperature and Gas Compositionmentioning

confidence: 99%

“…Modeling and simulation techniques were also studied to identify and reduce the efficiency losses and improving the DFFC performance (13). Despite various studies in DFFCs, a range of technical challenges still remain to be resolved.…”

Section: Introductionmentioning

confidence: 99%

Study on Direct Flame Solid Oxide Fuel Cell Using Flat Burner and Ethylene Flame

et al. 2015

View full text Add to dashboard Cite

This paper presents an experimental investigation of direct flame solid oxide fuel cell (SOFC) by using a flat-flame burner and fuelrich ethylene/air premixed flames. A direct flame fuel cell (DFFC) setup is designed and implemented to measure electrochemical characteristics of electrolyte supported (i.e., single cell consisting of Ce 0.9 Ni 0.1 O 2-δ anode/GDC electrolyte/LSCF-GDC cathode) fuel cell. The fuel cell temperature and cell performance were investigated by operating various fuel/air equivalence ratios and varying distance between burner surface and the fuel cell. A maximum power density of 41 mW/cm 2 and current density of 121 mA/cm 2 were achieved. Experimental results suggest that the fuel cell performance was greatly influenced by the flame operating conditions and cell position in the flame. The uniformity of the flame temperature and the fuel cell stability were also investigated and calculations of equilibrium gas species composition were performed.

show abstract

Modeling, simulation and optimization of a no-chamber solid oxide fuel cell operated with a flat-flame burner

Cited by 27 publications

References 17 publications

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Metal-supported solid oxide fuel cells operated in direct-flame configuration

Micro-tubular flame-assisted fuel cells

Study on Direct Flame Solid Oxide Fuel Cell Using Flat Burner and Ethylene Flame

Contact Info

Product

Resources

About