Analysis of an intermediate-temperature proton-conducting SOFC hybrid system

Tien Chun Cheng, Tzu Yuan Huang, Chi Fu Chen, Chung Jen Tseng, Sheng Wei Lee, Jeng Kuei Chang, Jason Shian Ching Jang

研究成果: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)

摘要

The performance of an intermediate-temperature proton-conducting solid oxide fuel cell (pSOFC) hybrid system is investigated in this work. The hybrid system consists of a 20-kW pSOFC, a micro gas turbine (MGT), and heat exchangers. Heat exchangers are used to recover waste heat from pSOFC and MGT. The performance of the system is analyzed by using Matlab/Simulink/Thermolib. Flow rates of air and hydrogen are controlled by assigning different stoichiometric ratio (St). St considered in this study is between 2 and 3.5 for air, and between 1.25 and 1.45 for hydrogen. Results show that the combined heat and power (CHP) efficiency increases as the fuel St decreases or air St increases. This is because lowering fuel St means fewer fuel will be wasted from the fuel cell stack, so the CHP efficiency increases. On the other hand, as air St increases, the amount of recovered waste heat increases, so does the CHP efficiency.

原文???core.languages.en_GB???
頁(從 - 到)1649-1656
頁數8
期刊International Journal of Green Energy
13
發行號15
DOIs
出版狀態已出版 - 7 12月 2016

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