Fuel sensitivity tests in tubular solid oxide fuel cells

Gopalan, Srikanth; DiGiuseppe, Gianfranco

doi:10.1016/j.jpowsour.2003.08.021

Cited by 23 publications

(23 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Temperature distribution along the bundle rows. [13]; the homogeneity of the FC sensitivity among the various cells is around 10%. The single cell sensitivity to air stoichiometry has been estimated in around −1.3 mVcell/%0.1 stoichs.…”

Section: Sensitivity Of the Voltage Distribution To Fuel Consumption mentioning

confidence: 95%

“…The control variable fuel consumption (FC) factor is defined in the same way, but, at the numerator it also takes into account the fuel mass flow that is chemically oxidized on the anode side due to the air leakage from the cathode to the anode through the electrolyte layer or other sources (of the order of 20-30 cm 3 min −1 at 300 mA cm −2 according to [13]), plus the fuel by-pass through the insulation package.…”

Section: Description Of the Experimental Sessionsmentioning

confidence: 99%

“…If the performance of a cell is limited by the ohmic contribution and leakages can be neglected then the sensitivity of cell terminal voltage to FU is well described by the variation of Nernstian term with fuel utilization. In the case of a tubular cathode supported cell the performance is also limited by cathodic diffusion and leakages play an important rule [13]. In the following some considerations are made about all these terms.…”

Section: Deduction Of the Local Fuel Utilization Distributionmentioning

confidence: 99%

“…In [13] the sensitivity of the measured terminal voltage of a tubular solid oxide fuel cell to the fuel utilization is used to provide information about 'leaks' through the cell. In [14] an experimental analysis on a short stack is presented and the presence of localized overheating is addressed to low fuel availability on the anode side.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Experimental evaluation of the sensitivity to fuel utilization and air management on a 100kW SOFC system

Santarelli

Leone

Calı̀

et al. 2007

Journal of Power Sources

View full text Add to dashboard Cite

Section: Sensitivity Of the Voltage Distribution To Fuel Consumption mentioning

confidence: 95%

Section: Description Of the Experimental Sessionsmentioning

confidence: 99%

Section: Deduction Of the Local Fuel Utilization Distributionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental evaluation of the sensitivity to fuel utilization and air management on a 100kW SOFC system

Santarelli

Leone

Calı̀

et al. 2007

Journal of Power Sources

View full text Add to dashboard Cite

“…In a previous work [21,22] it has been demonstrated that the sensitivity of cell voltage to FU depends on several contributions, which concern the Nernstian term, the diffusion term and eventually the effect of leakages of air at the anode side. At low current density the FU sensitivity is governed essentially by the variation of the average Nernst voltage with FU whereas at high current density the effect of diffusion and leakages become more effective.…”

Section: Fuel Sensitivity and Local Fuel Utilisation Estimationmentioning

confidence: 99%

SOFC 5 kW_e CHP Field Unit: Effect of the Methane Dilution

et al. 2010

View full text Add to dashboard Cite

TurboCare and Politecnico di Torino (Italy) have installed an SOFC laboratory in order to analyse the operation of two SOFC generators (Project EOS‐100 kW and EBE‐5 kW) built by Siemens Power Corporation (SPC). In the EBE project the installation of the SFC5 SOFC generator (3.5 kWe and 3 kWth) was carried out. To date, it has operated in the workshop canteen for more than 15,984 h with very high reliability.The real stack is a complex system not installed in a laboratory environment, and has several effects of non‐homogeneity in terms of electrochemical response to fuel or air management modifications. Moreover, many of the parameters of the stack are not directly measurable, and have to be inferred by indirect measurements.In this paper, the analysis of the non‐homogeneous behaviour of the different segments of the complete stack is performed, through an experimental session using a non‐conventional fuel.The obtained data have been analysed using the ANOVA for every dependent variable and a non‐linear regression model for the voltage. Those models were used to evaluate the effect of the fuel modification on the local fuel utilisation in different sectors of the stack.

show abstract