Thermoelectrical comprehensive analysis and optimization of multi-stack solid oxide fuel cell system

Qin, H; Cheng, Z; Zhang, B; Zhou, R; Yu, Y; Li, X; Wen, S; Li, J; Jiang, J

Thermoelectrical comprehensive analysis and optimization of multi-stack solid oxide fuel cell system

Qin, H Cheng, Z Zhang, B Zhou, R Yu, Y Li, X Wen, S

Li, J Jiang, J

Permalink

Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Energy Conversion and Management, 2023, 291
Issue Date:: 2023-09-01

Closed Access

	Filename	Description	Size
	2.pdf	Published version	7.53 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Qin, H
dc.contributor.author	Cheng, Z
dc.contributor.author	Zhang, B
dc.contributor.author	Zhou, R
dc.contributor.author	Yu, Y
dc.contributor.author	Li, X
dc.contributor.author	Wen, S https://orcid.org/0000-0001-8077-7001
dc.contributor.author	Li, J
dc.contributor.author	Jiang, J
dc.date.accessioned	2024-01-16T21:25:11Z
dc.date.available	2024-01-16T21:25:11Z
dc.date.issued	2023-09-01
dc.identifier.citation	Energy Conversion and Management, 2023, 291
dc.identifier.issn	0196-8904
dc.identifier.issn	1879-2227
dc.identifier.uri	http://hdl.handle.net/10453/174640
dc.description.abstract	Solid oxide fuel cell (SOFC) is one of the most promising power generation technologies for its high efficiency, low emission, and fuel adaptability. The power of a single SOFC stack is usually limited to about 1 kW to guarantee its reliability, and stacks are therefore integrated in series or parallel to meet load power demand. However, the performance of a multi-stack SOFC system predominantly depends on the configuration (electrical and gas path structure) of the stack module. Consequently, it is important for the development of SOFC to explore the influence of stack integration structure on system performance and thermal safety, and to further grasp the multi-stack design principles by analyzing the input-output characteristics of the system. The existing studies mainly focus on the electric performance-related parameters analysis and optimization of multi-stack, without considering the thermal safety, the laws of the integration structure influence on system performance and comprehensive optimization on system level. In this work, general multi-stack SOFC systems with four gas distribution structures constructed by four validated stacks are considered and their thermoelectrical performance is systematically investigated and optimized under operational constraints based on a completed multi-SOFC system model. Moreover, the input-output characteristics, thermoelectrical performance and operation rules of the multi-stack SOFC system analysis are conducted, and finally, the stack module design principles and optimal stack topology are obtained. The results show that the parallel connection of two serial stack branches is preferred and can reach the maximum net system efficiency of 42.90 % and maintain the maximum temperature gradient within 6.04 K/cm at a low cost.
dc.language	English
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Energy Conversion and Management
dc.relation.isbasedon	10.1016/j.enconman.2023.117297
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0906 Electrical and Electronic Engineering, 0913 Mechanical Engineering
dc.subject.classification	Energy
dc.subject.classification	4004 Chemical engineering
dc.subject.classification	4008 Electrical engineering
dc.subject.classification	4017 Mechanical engineering
dc.title	Thermoelectrical comprehensive analysis and optimization of multi-stack solid oxide fuel cell system
dc.type	Journal Article
utslib.citation.volume	291
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	0913 Mechanical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Strength - AAII - Australian Artificial Intelligence Institute
utslib.copyright.status	closed_access	*
dc.date.updated	2024-01-16T21:25:07Z
pubs.publication-status	Published
pubs.volume	291

Abstract:

Solid oxide fuel cell (SOFC) is one of the most promising power generation technologies for its high efficiency, low emission, and fuel adaptability. The power of a single SOFC stack is usually limited to about 1 kW to guarantee its reliability, and stacks are therefore integrated in series or parallel to meet load power demand. However, the performance of a multi-stack SOFC system predominantly depends on the configuration (electrical and gas path structure) of the stack module. Consequently, it is important for the development of SOFC to explore the influence of stack integration structure on system performance and thermal safety, and to further grasp the multi-stack design principles by analyzing the input-output characteristics of the system. The existing studies mainly focus on the electric performance-related parameters analysis and optimization of multi-stack, without considering the thermal safety, the laws of the integration structure influence on system performance and comprehensive optimization on system level. In this work, general multi-stack SOFC systems with four gas distribution structures constructed by four validated stacks are considered and their thermoelectrical performance is systematically investigated and optimized under operational constraints based on a completed multi-SOFC system model. Moreover, the input-output characteristics, thermoelectrical performance and operation rules of the multi-stack SOFC system analysis are conducted, and finally, the stack module design principles and optimal stack topology are obtained. The results show that the parallel connection of two serial stack branches is preferred and can reach the maximum net system efficiency of 42.90 % and maintain the maximum temperature gradient within 6.04 K/cm at a low cost.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/174640