硅酸盐学报

甲醇固体氧化物燃料电池平管型电堆与系统的变工况性能模拟

PDF下载

王紫寒 ¹^,² , 杨钧 ²^,³ , 桑君康 ² , 刘曌 ² , 官万兵 ² , 蔡文远 ³ , 纪育博 ⁴ , 罗象 ⁵ , 吴韬 ⁵

硅酸盐学报 | 固体氧化物电池表界面专题—研究论文 2025,53(10): 2963-2972

收起

硅酸盐学报 |固体氧化物电池表界面专题—研究论文 2025 , 53 (10) : 2963 -2972

甲醇固体氧化物燃料电池平管型电堆与系统的变工况性能模拟

全屏

王紫寒¹^,², 杨钧²^,³, 桑君康², 刘曌², 官万兵², 蔡文远³, 纪育博⁴, 罗象⁵, 吴韬⁵

作者信息

^1．宁波大学材料科学与化学工程学院，浙江宁波 315211

^2．中国科学院宁波材料技术与工程研究所，浙江省先进燃料电池与电解池技术重点实验室，浙江宁波 315201

^3．浙江氢邦科技有限公司，浙江宁波 311199

^4．宁波华润兴光燃气有限公司，浙江宁波 315207

^5．宁波诺丁汉大学理工学院，浙江宁波 315199

通讯作者:

杨钧（1982—），男，博士，研究员。

作者简介:

王紫寒（1998—），男，硕士研究生。

Simulation of Variable Operating Condition Performance of Methanol Solid Oxide Fuel Cell Planar Tubular Stack and System

Zihan WANG¹^,², Jun YANG²^,³, Junkang SANG², Zhao LIU², Wanbing GUAN², Wenyuan CAI³, Yubo JI⁴, Xiang LUO⁵, Tao WU⁵

Affiliations

^1.College of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, Zhejiang, China

^2.Zhejiang Key Laboratory of Advanced Fuel Cell and Electrolytic Cell Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, Zhejiang, China

^3.Zhejiang Hydrogen Power Technology Co., Ltd., Ningbo 311199, Zhejiang, China

^4.Ningbo Huarun Xingguang Gas Co., Ltd., Ningbo 315207, Zhejiang, China

^5.College of Science and Engineering, University of Nottingham Ningbo China, Ningbo 315199, Zhejiang, China

Corresponding Author:

YANG Jun (1982-), male, Ph.D., Professor. E-mail: yangjun@nimte.ac.cn

WANG Zihan (1998-), male, Master candidate. E-mail: 2544100512@qq.com

出版时间: 2025-10-20 doi: 10.14062/j.issn.0454-5648.20250099

文章导航

摘要

收起

随着全球能源结构转型的推进，固体氧化物燃料电池（SOFC）因其高效、清洁的能源转换特性成为研究热点。甲醇作为液态氢载体，具有储运安全、来源广泛等优势，其重整制氢耦合SOFC系统可规避氢气储运难题，提升能源利用效率。本工作针对甲醇蒸汽重整耦合平管型SOFC电堆系统，研究开发了一种基于吉布斯自由能最小化的平管型SOFC电堆模型，该模型执行热量和质量平衡，并在电压计算中考虑了欧姆、活化和浓度极化损失，可以预测不同运行条件下甲醇SOFC的发电特性，通过对比模拟计算结果与使用甲醇运行的平管型SOFC电堆实验数据验证了该模型的准确性。本工作还对电堆燃料利用率、电流密度和蒸汽与可燃碳（甲醇）的摩尔比等参数开展了敏感性分析，以深入了解主要变量对系统的影响。为甲醇SOFC系统的优化设计与稳定运行提供了理论与实验依据，对推动清洁能源高效利用具有重要意义。

关键词

固体氧化物燃料电池 / 甲醇 / 系统模拟 / 实验 / 燃料利用

Abstract

收起

Introduction

With the advancement of global energy transition, the development of efficient and clean energy conversion technologies becomes crucial to addressing energy shortages and environmental pollution. Solid oxide fuel cells (SOFCs) have attracted much attention due to their high energy conversion efficiency and fuel flexibility, while methanol as a liquid hydrogen carrier offers advantages such as safe storage/transportation and wide availability. However, a systematic research on the off-design performance and optimal design of methanol-SOFC systems remains insufficient, particularly for planar-tubular SOFC stacks through modeling and experimental validation. This study was to establish an accurate mathematical model combined with experimental verification to elucidate the power generation characteristics of methanol-SOFC systems under variable operating conditions, providing theoretical foundations and technical support for efficient and stable system operation.

Methods

This study proposed an equilibrium-based SOFC stack model based on the principle of minimizing Gibbs free energy, integrating heat and mass balance calculations, while comprehensively considering the effects of ohmic polarization, activation polarization, and concentration polarization on the voltage. An industrial-sized flat-tube SOFC stack (5 cells) was used to compare the power generation performance of pure hydrogen and methanol reforming gas at 750 ℃. The composition of the reforming gas was analyzed by gas chromatography, and the I-V curve was tested. A system flow model wss constructed using a software named Aspen Plus, and the I-V curves obtained from the SOFC system model simulation aligned closely with the experimental results, confirming the accuracy of the computational model used in this study. The sensitivity analysis was then performed to evaluate the effects of key parameters (i.e., the steam-to-carbon molar ratio (STCR), fuel utilization rate (U_f), and current density) on the system performance.

Results and discussion

In the comparation of the performance of the SOFC system under pure hydrogen and methanol reforming gas power generation conditions, the maximum power density difference was only 5.59%, confirming the practicality of methanol fuel. Furthermore, the sensitivity analysis indicates that a) since anode carbon deposition is a key factor leading to stack failure, the impact of the steam-to-carbon molar ratio (STCR) on the system power generation performance is studied. The operating voltage decreases from 3.505 V to 3.226 V, and the system efficiency reduces from 45.95% to 42.35% when the STCR increases from 1 to 4 (a commonly used STCR in industrial processes). A low STCR (=2) can balance both the efficiency and carbon deposition suppression; b) the impact of fuel utilization rate on the system power generation performance is investigated. The system efficiency increases from 35.79% to 57.25% when the fuel utilization rate increases from 55% to 95%. However, the excessive concentration polarization can be avoided, and a fuel utilization rate of 85% is recommended; and c) after determining the system's fuel utilization rate and STCR, the impact of current density on the system power generation performance is studied. The calculated current density range is 0.602-0.733 A·cm^-2, with the operating voltage range of 3.25-3.50 V under the target power range conditions (i.e., P=147.3-166.9 W). The system efficiency ranges from 38.18% to 43.27% at the optimal current density of 0.704 A·cm^-2.

Conclusions

This study proposed a computational model for the methanol power generation characteristics of flat-tube SOFC stacks, enabling the performance prediction of the methanol-SOFC stack under different operating conditions. The accuracy of this model was validated through modeling and experimental results. The study further clarified the performance behavior of the methanol-SOFC system under varying conditions and proposed optimization ranges for key parameters. The results indicated that methanol fuel could effectively replace pure hydrogen, and the stack output power could be controlled under high voltage conditions. The efficient and stable operation could be achieved via adjusting the steam-to-carbon molar ratio, fuel utilization rate and current density. At an output power of 150 W, the optimal operating parameters were a steam-to-carbon molar ratio of 2, a fuel utilization rate of 85%, and a current density of 0.704 A·cm^-2. Under the optimum conditions, the stack efficiency was 36.71%, and the system efficiency was 42.21%. The research findings could provide an important reference for the engineering application of methanol-SOFC systems and have significant implications for advancing clean energy technologies.

Key words

solid oxide fuel cell / methanol / system simulation / experiment / fuel utilization

引用本文

王紫寒, 杨钧, 桑君康, 刘曌, 官万兵, 蔡文远, 纪育博, 罗象, 吴韬. 甲醇固体氧化物燃料电池平管型电堆与系统的变工况性能模拟. 硅酸盐学报, 2025 , 53 (10) : 2963 -2972 . DOI: 10.14062/j.issn.0454-5648.20250099

Zihan WANG, Jun YANG, Junkang SANG, Zhao LIU, Wanbing GUAN, Wenyuan CAI, Yubo JI, Xiang LUO, Tao WU. Simulation of Variable Operating Condition Performance of Methanol Solid Oxide Fuel Cell Planar Tubular Stack and System[J]. Journal of the Chinese Ceramic Society, 2025 , 53 (10) : 2963 -2972 . DOI: 10.14062/j.issn.0454-5648.20250099

基金

收起

国家重点研发计划(2021YFB2500402)

参考文献

收起

文献

收起

参考文献引证文献

排序方式：

2025年第53卷第10期

PDF下载

引用本文

BibTeX

文章信息

doi: 10.14062/j.issn.0454-5648.20250099

接收时间：2025-02-14
首发时间：2026-10-21
出版时间：2025-10-20

补充材料

相关文章

文章信息

作者

出版历史

收稿日期：2025-02-14
修回日期：2025-03-26

基金

国家重点研发计划(2021YFB2500402)

作者信息

^1．宁波大学材料科学与化学工程学院，浙江宁波 315211

^2．中国科学院宁波材料技术与工程研究所，浙江省先进燃料电池与电解池技术重点实验室，浙江宁波 315201

^3．浙江氢邦科技有限公司，浙江宁波 311199

^4．宁波华润兴光燃气有限公司，浙江宁波 315207

^5．宁波诺丁汉大学理工学院，浙江宁波 315199

通讯作者:

杨钧（1982—），男，博士，研究员。

参考文献

分享链接

https://castjournals.cast.org.cn/joweb/gsyxb/CN/10.14062/j.issn.0454-5648.20250099

分享至

全文二维码

扫描看全文

引用本文

BibTeX

本文的引用情况

2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

关闭全屏

BibTeX
EndNote
RefWorks
TxT