Solid oxide fuel cell operation with biomass gasification product gases: Performance- and carbon deposition risk evaluation via a CFD modelling approach

Gernot Pongratz*, Vanja Subotić, Christoph Hochenauer, Robert Scharler, Andrés Anca-Couce

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung

Abstract

Solid oxide fuel cell (SOFC) models used in the past for biomass-to-power plant simulations are limited in their predictability of the carbon deposition risk. In this work, industrial-relevant cell designs were modeled in 2D-CFD considering detailed reaction kinetics which allowed more accurate performance simulations and carbon deposition risk assessments. Via a parametric study, the influence of varying cell operating conditions on the cell performance and carbon deposition risk was quantified when utilizing product gases from steam- and air gasification with varying steam addition. Considering the results from this parameter study and carbon deposition risk assessment, recommendations for promising gasifier-SOFC configurations and cell operating points for stable long-term operation are presented. For smaller-scale biomass-to-power systems, the utilization of product gas from air gasification in anode supported cells with Ni/zirconia-based anode can be recommended, with only moderate steam dilution of the product gas at 750°C cell operating temperature. For larger scales, steam gasification might be meaningful, offering a generally higher electrical efficiency and power output in fuel cells than air gasification. However, a higher risk for carbon deposition could be determined in comparison to air gasification. Hence, a cell temperature of 850°C besides the use of cells with Ni/ceria-based anodes is recommended.

Originalspracheenglisch
Aufsatznummer123085
FachzeitschriftEnergy
Jahrgang244
DOIs
PublikationsstatusVeröffentlicht - Apr. 2022

ASJC Scopus subject areas

  • Maschinenbau
  • Umweltverschmutzung
  • Energieanlagenbau und Kraftwerkstechnik
  • Energie (insg.)
  • Elektrotechnik und Elektronik
  • Wirtschaftsingenieurwesen und Fertigungstechnik
  • Management, Monitoring, Politik und Recht
  • Bauwesen
  • Feuerungstechnik
  • Erneuerbare Energien, Nachhaltigkeit und Umwelt
  • Tief- und Ingenieurbau
  • Modellierung und Simulation

Fingerprint

Untersuchen Sie die Forschungsthemen von „Solid oxide fuel cell operation with biomass gasification product gases: Performance- and carbon deposition risk evaluation via a CFD modelling approach“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren