文献类型：期刊文献

英文题名：Comparative study of solid oxide fuel cell combined heat and power system with Multi-Stage Exhaust Chemical Energy Recycling: Modeling, experiment and optimization

作者：Zhang, Li[1];Xing, Yaohua[1];Xu, Hong[1];Wang, Hongtao[3];Zhong, Jie[1];Xuan, Jin[2]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland;[3]SINOPEC, Fushun Res Inst Petr & Petrochem, Fushun 113001, Liaoning, Peoples R China

年份：2017

卷号：139

起止页码：79

外文期刊名：ENERGY CONVERSION AND MANAGEMENT

收录：;EI(收录号：20170903395041);WOS:【SCI-EXPANDED(收录号:WOS:000397683900006)】；

基金：The research reported in this paper is supported by China Petrochemical Science and Technology Project (113143) and UK Engineering and Physical Sciences Research Council (EPSRC) grant EP/N009924/1.

语种：英文

外文关键词：Solid oxide fuel cell; Combined heating and power; Anode off gas recovery; Exhaust gas combustion; Process simulation

摘要：In this paper, a novel Multi-Stage Exhaust Energy Recycling strategy was proposed and optimized to maximize the system efficiency and performance of solid oxide fuel cell -combined heating and power (SOFC-CHP). Both process modeling and experiment work based on 1 kW SOFC-CHP systems were carried out to prove the concept and optimize the system. It is found that the system with multi -stage exhaust gas combustion (MS-EGC) will reduce the system operating temperature from 1149 degrees C to 830 degrees C, which significantly increases the safety of system operation and reduces the material requirement. The system combining MS-EGC with anode off gas recovery (MS-AOGR & EGC) leads to highest overall co-generation efficiency up to 92%. A coupled reactor integrating MS-EGC modules was developed and tested for a 1 kW SOFC system to realize the proposed strategy. The results showed that in MS-EGC, recycling of thermal energy at first stage rarely affects the chemical energy utilization in subsequent stages and the overall system performance, further confirming the advantages of the innovative multi-stage energy recycling strategy. (C) 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license