Analysis and integration of fuel cell combined cycles for development of low-carbon energy technologies

Petar Varbanova and Jiří Klemešb


aMarie Curie ERG ESCHAINS, Research Institute of Chemical and Process Engineering, University of Pannonia, Egyetem u. 10, Veszprém H-8200, Hungary

bEC Marie Curie Chair (EXC) “INEMAGLOW”, Research Institute of Chemical Technology and Process Engineering, FIT, University of Pannonia, Egyetem u. 10, Veszprém H-8200, Hungary


Integrated and combined cycles (ICC, CC) traditionally involve gas and steam turbines only. The paper analyses the further integration of high-temperature fuel cells (FC) having high electrical efficiency reaching up to 60% compared with 30–35% for most gas turbines. The previous research on FC hybrids indicates achieving high efficiencies and economic viability is possible. The ICC of various FC types—their performance and the potential for utilisation of renewables—are analysed considering also power generation capacity and site heat integration context. Further research and development with industrial relevance are outlined focusing on CO2 emissions reduction.


Keywords: Energy efficiency; High-temperature fuel cells; Combined cycle; Power cycle integration; Total site heat integration; CO2 minimisation

Energy 33 (2008) 1508– 1517


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