Ammonia-fed solid oxide fuel cells for power generation-A review

Ni, Meng; Leung, Dennis Y.C.

doi:10.1002/er.1588

Cited by 118 publications

(70 citation statements)

References 42 publications

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“…Water is produced at the cathode therefore will not dilute the fuel. Research on ammonia SOFCs has been reviewed by Ni et al (2009). Ni also carried out modeling of ammonia SOFCs and it was found that increasing the inlet temperature of NH 3 -fueled SOFC is favorable for a higher electric output, but the temperature gradient in the SOFC is considerably higher, particularly near the inlet of the SOFC (Ni, 2011).…”

Section: Ammonia Solid Oxide Fuel Cellsmentioning

confidence: 99%

Ammonia as a Suitable Fuel for Fuel Cells

2014

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Ammonia, an important basic chemical, is produced at a scale of 150 million tons per year. Half of hydrogen produced in chemical industry is used for ammonia production. Ammonia containing 17.5 wt% hydrogen is an ideal carbon-free fuel for fuel cells. Compared to hydrogen, ammonia has many advantages. In this mini-review, the suitability of ammonia as fuel for fuel cells, the development of different types of fuel cells using ammonia as the fuel and the potential applications of ammonia fuel cells are briefly reviewed.

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Section: Ammonia Solid Oxide Fuel Cellsmentioning

confidence: 99%

Ammonia as a Suitable Fuel for Fuel Cells

2014

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“…where J 0 is the exchange current density, a is the symmetric factor (0.5 in the present study), z is the number of electrons involved in per electrochemical reaction (2 in the present study) [40][41][42].…”

Section: Electrochemical Modelmentioning

confidence: 99%

Modeling of a planar solid oxide fuel cell based on proton-conducting electrolyte

Ni¹

2009

Int. J. Energy Res.

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SUMMARYA 2D computational fluid dynamics (CFD) model is developed to study the performance of an advanced planar solid oxide fuel cell based on proton conducting electrolyte (SOFC-H). The governing equations are solved with the finite volume method (FVM). Simulations are conducted to understand the transport phenomena and electrochemical reaction involved in SOFC-H operation as well as the effects of operating/structural parameters on SOFC-H performance. In an SOFC based on oxygen ion conducting electrolyte (SOFC-O), mass is transferred from the cathode side to the anode side. While in an SOFC-H, mass is transferred from the anode to the cathode, which causes different velocity fields of the fuel and oxidant gas channels and influences the distributions of temperature and gas composition in the cell. It is also found that increasing the inlet gas velocity leads to an increase in the local current density and a slight decrease in the SOFC-H temperature due to stronger cooling effect of the gas species at a higher velocity. Another finding is that the electrode structure does not significantly affect the heat and mass transfer in an SOFC-H at typical operating voltages.

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“…Solid oxide fuel cells (SOFCs) are more efficient than other traditional technologies for energy conversion from fuel to electricity due to their high operating temperature and straightforward power generation process [1][2][3][4][5]. SOFCs consist of 3 key layers: porous anode, dense electrolyte and porous cathode.…”

Section: Introductionmentioning

confidence: 99%