Performance study on intermediate temperature solid oxide fuel cell and gas turbine hybrid system fueled with wood chip gasified gas

作者：LÜ, Xiaojing; Geng, Xiaoru; Zhu, Xinjian; Weng, Yiwu

来源：Proceedings of the CSEE, 2015, 35(1): 133-141.

DOI：10.13334/j.0258-8013.pcsee.2015.01.017

• Biomass gas
• Composition variation
• Detailed modeling
• Electrical efficiency
• Intermediate temperature solid oxide fuel cell
• Operating performance
• Performance study
• [S]/[C] ratio variation

The detailed model of intermediate temperature solid oxide fuel cell (IT-SOFC) and gas turbine (GT) hybrid system fueled with wood chip gasified gas was built. System operating performance was analyzed and the influence of biomass gas composition and steam/carbon molal ratio([S]/[C]) was studied. The results show that, hybrid system electrical efficiency can reach up to 59.24% at design condition, and the system demonstrates excellent performance. The change of biomass gas composition has significant influence to system performance. The change of H2proportion is most influential to system output power, CO and CH4have similar influence trend. System electrical efficiency increases slightly with the change of H2proportion while decreasing significantly with the increase of CO and CH4proportion. Also, the decrease of [S]/[C] ratio gradually enlarges system output power and electrical efficiency, but in consideration of the system operating security and lifetime, [S]/[C] ratio should be chosen appropriately.

• 出版日期2015
• 单位上海交通大学