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Two new cogeneration systems (producing power and heating) based on solid oxide fuel cell fed by either the syngas or biogas are proposed. The performance of systems is analyzed and compared with one another from the thermodynamic and economic viewpoints. Applying the conservation of mass and energy as well as the exergy and cost balance equations for each system component and using the engineering...
Four different configurations of natural gas and biogas fed solid oxide fuel cell are proposed and analyzed thermoeconomically, focusing on the influence of anode and/or cathode gas recycling. It is observed that the net output power is maximized at an optimum current density the value of which is lowered as the methane concentration in the biogas is decreased. Results indicate that when the current...
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