... shed lights for the development of safe and optimal control strategies. 26 04 2011 08 05 2011 05 10 2011 05 10 2011 compressors fuel systems gas turbines solid oxide fuel cells Solid oxide fuel cells (SOFC), which operate at elevated temperatures (∼800 °C...

...–4% lower thermal efficiency and higher capital costs of turbo-compressor compared to a design based on maximum thermal efficiency. On the other hand, the hybrid system is studied for a turbine inlet temperature (TIT) of 1 250–1 450 K and 10–20% total pressure drop in the system. The maximum thermal...

... cell electrolyte temperature, gas turbine shaft speed, turbine inlet temperature, and compressor surge. Using a control strategy that primarily focuses on holding fuel cell electrolyte temperature constant and secondarily on maintaining gas turbine shaft speed, safe operation was found to occur...

... voltage and reduced polarization resistance. After comparing the power gain of the pressurized SOFC and the power consumption gain of the air compressor used for pressurization, it was found that pressurized cell operation exhibited the highest actual power gain at around 0.3 MPa. Polarization...

... cell and the heat exchangers. The gas-turbine is modeled through compressor and turbine performance maps, and the FC is modeled through a finite volume code. The results indicate the possibility to regulate effectively the plant power output acting on the turbine shaft speed, the air-to-fuel ratio...

... on the compressor speed and/or the cathode back-pressure valve, allows to better take into account the effect of exogenous variables on stack performance. Particularly, the proposed technique has proven to perform better than classical feedforward/feedback approaches when well known aging mechanisms deteriorate...

...Loïc Boulon; Marie-Cécile Péra; Philippe Delarue; Alain Bouscayrol; Daniel Hissel This paper presents a model of a whole polymer electrolyte fuel cell system including the stack, an air compressor, a cooling system, and a power converter. This model allows its integration in a complete hybrid...

...Huisheng Zhang; Shilie Weng; Ming Su The intention of this paper is to present the dynamic models for the molten carbonate fuel cell (MCFC)-gas turbine hybrid cycle. This paper analyzes the performance of various components in the hybrid power plant, such as the compressor, turbine, recuperator...