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- W1904032103 abstract "In reformer based SOFCs (solid oxide fuel cells) with hydrocarbon fuels, fuel utilization (U) and STCR (steam-to-carbon-ratio) are important variables indicating conditions inside the anode and reformer respectively. However, both variables are difficult to measure due to their dependence on internal species concentrations, temperatures, pressures and flow rates. In contrast to system-specific model-based techniques for estimating U and STCR, this paper proposes a generalized method for formulating and characterizing these variables, that applies to hydrocarbon fuels of the form CaH2bOd, multiple reformer types, and system configurations. The approach takes advantage of the invariance of quantities, such as potential hydrogen and STCB (steam-to-carbon-balance), with respect to reaction pathways, reaction rates, and aforementioned internal conditions. These conserved quantities can be predicted under steady-state conditions in a model-independent fashion. The invariant relationships so obtained are useful for predicting U and STCB using only system level inputs, namely current, supply rate of unreformed fuel, and rate of recirculation, and without requiring expensive and intrusive sensors. They are also useful for maintaining U and STCB at target values and in addressing their transient fluctuations." @default.
- W1904032103 created "2016-06-24" @default.
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- W1904032103 date "2015-10-01" @default.
- W1904032103 modified "2023-09-23" @default.
- W1904032103 title "Invariant properties of solid oxide fuel cell systems with integrated reformers" @default.
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- W1904032103 doi "https://doi.org/10.1016/j.energy.2015.07.076" @default.
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