As an energy conversion and generation device that converts hydrogen energy into electrical energy, the solid oxide fuel cell is one of the most promising fuel cells. However, thermal stability is the major reason for the shortened solid oxide fuel cell lifetime of hybrid electric vehicles usage. In existing solid oxide fuel cell system, the peak temperature occurs in the afterburner, so the thermal safety assessment is very important for solid oxide fuel cell stack. In this paper, afterburner thermal performance of natural gas solid oxide fuel cell system is studied based on computational fluid dynamics simulation. The model is analysed by changing gas temperature, gas flow velocity, gas composition ratio and steam to carbon ratio. The afterburner temperature distribution and its safety characteristics are obtained through model analysis. The simulation and discussion results can guide the thermoelectric safety assessment and controller design of the SOFC system.

Afterburner temperature safety assessment for solid oxide fuel cell system based on computational fluid dynamics

Sorrentino M.;
2021-01-01

Abstract

As an energy conversion and generation device that converts hydrogen energy into electrical energy, the solid oxide fuel cell is one of the most promising fuel cells. However, thermal stability is the major reason for the shortened solid oxide fuel cell lifetime of hybrid electric vehicles usage. In existing solid oxide fuel cell system, the peak temperature occurs in the afterburner, so the thermal safety assessment is very important for solid oxide fuel cell stack. In this paper, afterburner thermal performance of natural gas solid oxide fuel cell system is studied based on computational fluid dynamics simulation. The model is analysed by changing gas temperature, gas flow velocity, gas composition ratio and steam to carbon ratio. The afterburner temperature distribution and its safety characteristics are obtained through model analysis. The simulation and discussion results can guide the thermoelectric safety assessment and controller design of the SOFC system.
2021
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4781461
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 8
social impact