Experimental analysis on performance and durability of SOFC demonstration unit

Matias Halinen (Corresponding Author), Jaakko Saarinen, M. Noponen, I. C. Vinke, Jari Kiviaho

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

A technical description and experimental analysis of a SOFC demonstration unit is presented. The unit contains most of the primary BoP‐components of a complete SOFC system, except of air and fuel recirculation equipment or fuel system compressor. Natural gas is used as the fuel and electricity is supplied to the electric grid. A 5 kW power class planar SOFC stack from Research Centre Jülich is assembled to the demo unit and a long‐term experiment is conducted to assess the characteristic performance and durability of different components of the unit (e.g. the SOFC stack, the fuel pre‐reformer and air heat exchangers). The evolution of absolute voltage drop of the stack over time is found to be of the same magnitude when compared to short stack experiments. Thus, other system components are not observed to cause an increase in the characteristic voltage drop of the stack. Two BoP‐components, the afterburner and the power conversion unit failed to operate as designed. The performance of other BoP‐components i.e. fuel pre‐reformer and heat exchangers were satisfactory during the test run, and no significant performance loss could be measured.
Original languageEnglish
Pages (from-to)440-452
Number of pages13
JournalFuel Cells
Volume10
Issue number3
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

Solid oxide fuel cells (SOFC)
Durability
Demonstrations
Heat exchangers
Fuel systems
Air
Compressors
Natural gas
Electricity
Experiments
Voltage drop

Keywords

  • Balance of plant
  • Durability
  • Experimental results
  • Solid oxide fuel cell
  • Stack
  • Voltage degradation

Cite this

Halinen, Matias ; Saarinen, Jaakko ; Noponen, M. ; Vinke, I. C. ; Kiviaho, Jari. / Experimental analysis on performance and durability of SOFC demonstration unit. In: Fuel Cells. 2010 ; Vol. 10, No. 3. pp. 440-452.
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abstract = "A technical description and experimental analysis of a SOFC demonstration unit is presented. The unit contains most of the primary BoP‐components of a complete SOFC system, except of air and fuel recirculation equipment or fuel system compressor. Natural gas is used as the fuel and electricity is supplied to the electric grid. A 5 kW power class planar SOFC stack from Research Centre J{\"u}lich is assembled to the demo unit and a long‐term experiment is conducted to assess the characteristic performance and durability of different components of the unit (e.g. the SOFC stack, the fuel pre‐reformer and air heat exchangers). The evolution of absolute voltage drop of the stack over time is found to be of the same magnitude when compared to short stack experiments. Thus, other system components are not observed to cause an increase in the characteristic voltage drop of the stack. Two BoP‐components, the afterburner and the power conversion unit failed to operate as designed. The performance of other BoP‐components i.e. fuel pre‐reformer and heat exchangers were satisfactory during the test run, and no significant performance loss could be measured.",
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Experimental analysis on performance and durability of SOFC demonstration unit. / Halinen, Matias (Corresponding Author); Saarinen, Jaakko; Noponen, M.; Vinke, I. C.; Kiviaho, Jari.

In: Fuel Cells, Vol. 10, No. 3, 2010, p. 440-452.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Experimental analysis on performance and durability of SOFC demonstration unit

AU - Halinen, Matias

AU - Saarinen, Jaakko

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AU - Vinke, I. C.

AU - Kiviaho, Jari

PY - 2010

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N2 - A technical description and experimental analysis of a SOFC demonstration unit is presented. The unit contains most of the primary BoP‐components of a complete SOFC system, except of air and fuel recirculation equipment or fuel system compressor. Natural gas is used as the fuel and electricity is supplied to the electric grid. A 5 kW power class planar SOFC stack from Research Centre Jülich is assembled to the demo unit and a long‐term experiment is conducted to assess the characteristic performance and durability of different components of the unit (e.g. the SOFC stack, the fuel pre‐reformer and air heat exchangers). The evolution of absolute voltage drop of the stack over time is found to be of the same magnitude when compared to short stack experiments. Thus, other system components are not observed to cause an increase in the characteristic voltage drop of the stack. Two BoP‐components, the afterburner and the power conversion unit failed to operate as designed. The performance of other BoP‐components i.e. fuel pre‐reformer and heat exchangers were satisfactory during the test run, and no significant performance loss could be measured.

AB - A technical description and experimental analysis of a SOFC demonstration unit is presented. The unit contains most of the primary BoP‐components of a complete SOFC system, except of air and fuel recirculation equipment or fuel system compressor. Natural gas is used as the fuel and electricity is supplied to the electric grid. A 5 kW power class planar SOFC stack from Research Centre Jülich is assembled to the demo unit and a long‐term experiment is conducted to assess the characteristic performance and durability of different components of the unit (e.g. the SOFC stack, the fuel pre‐reformer and air heat exchangers). The evolution of absolute voltage drop of the stack over time is found to be of the same magnitude when compared to short stack experiments. Thus, other system components are not observed to cause an increase in the characteristic voltage drop of the stack. Two BoP‐components, the afterburner and the power conversion unit failed to operate as designed. The performance of other BoP‐components i.e. fuel pre‐reformer and heat exchangers were satisfactory during the test run, and no significant performance loss could be measured.

KW - Balance of plant

KW - Durability

KW - Experimental results

KW - Solid oxide fuel cell

KW - Stack

KW - Voltage degradation

U2 - 10.1002/fuce.200900152

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