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Operation of a Solid Oxide Fuel Cell Based Power System with Ammonia as a Fuel: Experimental Test and System Design

Linda Barelli, Gianni Bidini and Giovanni Cinti
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Linda Barelli: Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy
Gianni Bidini: Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy
Giovanni Cinti: Department of Engineering, University of Perugia, Via G. Duranti 93, 06125 Perugia, Italy

Energies, 2020, vol. 13, issue 23, 1-19

Abstract: Ammonia has strong potentialities as sustainable fuel for energy applications. NH 3 is carbon free and can be synthetized from renewable energy sources (RES). In Solid Oxide Fuel Cells, NH 3 reacts electrochemically thereby avoiding the production of typical combustion pollutants such as NOx. In this study, an ammonia-fueled solid oxide fuel cells (SOFC) system design is proposed and a thermodynamic model is developed to evaluate its performance. A SOFC short stack was operated with NH 3 in a wide range of conditions. Experimental results are implemented in the thermodynamic model. Electrical efficiency of 52.1% based on ammonia Lower Heating Value is calculated at a net power density of 0.36 W cm FC −2 . The operating conditions of the after burner and of the ammonia decomposition reactor are studied by varying the values of specific parameters. The levelized cost of energy of 0.221 $ kWh −1 was evaluated, as introduced by the International Energy Agency, for a system that operates at nominal conditions and at a reference power output of 100 kW. This supports the feasibility of ammonia-fueled SOFC systems with reference to the carbon free energy market, specifically considering the potential development of green ammonia production.

Keywords: ammonia; SOFC; system; model; stack test (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: Add references at CitEc
Citations: View citations in EconPapers (5)

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