Analysis of a SOFC energy generation system fuelled with biomass reformate

Cordiner, Stefano; Feola, Maurizio; Mulone, Vincenzo; Romanelli, Fabio

doi:10.1016/j.applthermaleng.2006.10.015

Cited by 78 publications

(31 citation statements)

References 17 publications

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“…Reported electrical efficiencies for biomass gasification-solid oxide fuel cell (SOFC) systems range from 23-50% [1]. These systems offer highly efficient renewable energy and are modular in nature making them ideal for decentralised combined heat and power (CHP) applications and as a result have recently gained much attention [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Computer simulation of a biomass gasification-solid oxide fuel cell power system using Aspen Plus

Doherty¹,

Reynolds²,

Kennedy³

2010

Energy

185

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Received ABSTRACTThe operation and performance of a solid oxide fuel cell (SOFC) stack on biomass syn-gas from a biomass gasification combined heat and power (CHP) plant is investigated. The objective of this work is to develop a model of a biomass-SOFC system capable of predicting performance under diverse operating conditions. The tubular SOFC technology is selected. The SOFC stack model, equilibrium type based on Gibbs free energy minimisation, is developed using Aspen Plus. The model performs heat and mass balances and considers ohmic, activation and concentration losses for the voltage calculation. The model is validated against data available in the literature for operation on natural gas. Operating parameters are varied; parameters such as fuel utilisation factor (U f ), current density (j) and steam to carbon ratio (STCR) have significant influence. The results indicate that there must be a trade-off between voltage, efficiency and power with respect to j and the stack should be operated at low STCR and high U f . Operation on biomass syn-gas is compared to natural gas operation and as expected performance degrades.The realistic design operating conditions with regard to performance are identified. High efficiencies are predicted making these systems very attractive.

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Section: Introductionmentioning

confidence: 99%

Computer simulation of a biomass gasification-solid oxide fuel cell power system using Aspen Plus

Doherty¹,

Reynolds²,

Kennedy³

2010

Energy

185

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“…They calculated the electrical efficiency of the system as 36% and exergetic efficiency as 32%. Cordiner et al [7] studied the integration of a downdraft gasifier with a SOFC in which woody material is used as the fuel. Electrical efficiency of the system was calculated as 45.8%.…”

Section: Introductionmentioning

confidence: 99%

Effect of gasification agent on the performance of solid oxide fuel cell and biomass gasification systems

Çolpan

Hamdullahpur

Dinçer

et al. 2010

International Journal of Hydrogen Energy

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“…1 These systems offer highly efficient renewable energy and are modular in nature making them ideal for decentralized combined heat and power ͑CHP͒ applications, and as a result, have recently gained much attention. [2][3][4][5][6][7][8][9][10] Gasification occurs when a controlled amount of oxidant ͑pure oxygen, air, and/or steam͒ is reacted at high temperatures with available carbon in biomass or other carbonaceous material within a gasifier, producing a combustible gas. The combustible gas ͑syngas͒ is composed mainly of hydrogen ͑H 2 ͒, carbon monoxide ͑CO͒, methane ͑CH 4 ͒, carbon dioxide ͑CO 2 ͒, water ͑H 2 O͒, and nitrogen ͑N 2 ͒ as well as small amounts of higher hydrocarbons.…”

mentioning

confidence: 99%

Simulation of a Tubular Solid Oxide Fuel Cell Stack Operating on Biomass Syn-gas using Aspen Plus

Doherty¹,

Reynolds²,

Kennedy³

2009

ECS Trans.

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A tubular solid oxide fuel cell (SOFC) stack is modelled and its operation on biomass syn-gas is investigated. The objective of this work is to develop a computer simulation model of a biomass gasification-SOFC (BG-SOFC) system capable of predicting performance under various operating conditions and using diverse fuels. The stack is modelled using Aspen Plus and considers ohmic, activation and concentration losses. It is validated against published data for operation on natural gas. Operating parameters such as fuel and air utilisation factor (Uf and Ua), current density (j) and steam to carbon ratio (STCR) are varied and have significant influence. The model is run on wood and miscanthus syn-gas. The results indicate that there must be a trade-off between voltage, efficiency and power with respect to j and the stack should be operated at low STCR and high Uf. High efficiencies are predicted making these systems very promising.

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Analysis of a SOFC energy generation system fuelled with biomass reformate

Cited by 78 publications

References 17 publications

Computer simulation of a biomass gasification-solid oxide fuel cell power system using Aspen Plus

Computer simulation of a biomass gasification-solid oxide fuel cell power system using Aspen Plus

Effect of gasification agent on the performance of solid oxide fuel cell and biomass gasification systems

Simulation of a Tubular Solid Oxide Fuel Cell Stack Operating on Biomass Syn-gas using Aspen Plus

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