An efficient strategy exploiting the waste heat in a solid oxide fuel cell system

doi:10.1016/j.energy.2015.09.088

	An efficient strategy exploiting the waste heat in a solid oxide fuel cell system
	Wang, Yuan 1; Cai, Ling 2; Liu, Tie 1; Wang, Junyi 1; Chen, Jincan 1
刊名	ENERGY
	2015-12-15
卷号	93 页码:900-907
关键词	Solid oxide fuel cell Thermionic generator Waste heat Performance evaluation Parametric optimization
ISSN号	0360-5442
DOI	10.1016/j.energy.2015.09.088
英文摘要	A novel model of the hybrid system consisting of a SOFC (solid oxide fuel cell) and a vacuum TIG (thermionic generator) is proposed so that the high temperature waste heat produced in the fuel cell can be efficiently exploited. Analytic expressions for the power outputs and efficiencies of the SOFC, TIG, and hybrid system are derived. The relation among the current density of the SOFC, the voltage output of the TIG, and the ratio of the areas of the SOFC and TIG is obtained by the energy balance equation. The influence of the current density of the SOFC on the power output density and efficiency is discussed for a given ratio of areas or voltage output. The maximum power output density and efficiency of the hybrid system are, respectively, equal to 0.560 W/cm(2) and 0.284 and the efficiency of the hybrid system at the maximum power output density is 0.240. The optimal regions of the power output and efficiency of the hybrid system are determined. The advantages of the hybrid system are expounded, compared with the single SOFC. (C) 2015 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation, People's Republic of China[11175148]
WOS关键词	THERMIONIC ENERGY CONVERTER ; GENERATOR HYBRID SYSTEM ; MICRO GAS-TURBINE ; POWER CHP SYSTEM ; THERMOELECTRIC GENERATOR ; PERFORMANCE EVALUATION ; IP-SOFC ; OPTIMIZATION ; MODEL ; BIOMASS
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000367630200081
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25252]
专题	自然资源部第一海洋研究所
通讯作者	Chen, Jincan
作者单位	1.Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China 2.State Ocean Adm, Inst Oceanog 3, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuan,Cai, Ling,Liu, Tie,et al. An efficient strategy exploiting the waste heat in a solid oxide fuel cell system[J]. ENERGY,2015,93:900-907.
APA	Wang, Yuan,Cai, Ling,Liu, Tie,Wang, Junyi,&Chen, Jincan.(2015).An efficient strategy exploiting the waste heat in a solid oxide fuel cell system.ENERGY,93,900-907.
MLA	Wang, Yuan,et al."An efficient strategy exploiting the waste heat in a solid oxide fuel cell system".ENERGY 93(2015):900-907.