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Study on zero CO 2 emission atmospheric pressure SOFC hybrid power system integrated with OTM
Author(s) -
Duan Liqiang,
Huang Kexin,
Yang Yongping,
Chen Xinming,
Song Xiaohui
Publication year - 2014
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.3154
Subject(s) - zero emission , atmospheric pressure , zero (linguistics) , power (physics) , environmental science , nuclear engineering , materials science , thermodynamics , physics , engineering , electrical engineering , meteorology , philosophy , linguistics
SUMMARY In order to further reduce the energy consumption of CO 2 capture from the traditional SOFC hybrid power system, based on the principle of energy cascade utilization and system integration, a zero CO 2 emission atmospheric pressure solid oxide fuel cell (SOFC) hybrid power system integrated with oxygen ion transport membrane (OTM) is proposed. The oxygen is produced by the OTM for the oxy‐fuel combustion afterburner of SOFC. With the Aspen‐plus software, the models of the overall SOFC hybrid power systems with or without CO 2 capture are developed. The thermal performance of new system is investigated and compared with other systems. The effects of the fuel utilization factor of SOFC and the pressure ratio between two sides of OTM membrane on the overall system performance are analyzed and optimized. The research results show that the efficiency of the zero CO 2 emission atmospheric pressure SOFC hybrid power system integrated with OTM is around 58.36%, only 2.48% lower than that of the system without CO 2 capture (60.84%) but 0.96% higher than that of the zero CO 2 emission atmospheric pressure SOFC hybrid system integrated with the cryogenic air separation unit. Copyright © 2014 John Wiley & Sons, Ltd.