考虑BoP热区内部件间热传递的SOFC系统建模仿真

doi:10.16182/j.issn1004731x.joss.22-0281

系统仿真学报 ›› 2022, Vol. 34 ›› Issue (7): 1383-1392.doi: 10.16182/j.issn1004731x.joss.22-0281

• 专栏：电力和能源自动化仿真 • 下一篇

考虑BoP热区内部件间热传递的SOFC系统建模仿真

洪凌(), 邬荣敏, 周剑武, 夏天, 李晓洁, 田彭杰, 彭浩, 寿春晖()

浙江省太阳能利用及节能技术重点实验室浙江浙能技术研究院有限公司，浙江杭州 311121

收稿日期:2022-03-29 修回日期:2022-06-01 出版日期:2022-07-30 发布日期:2022-07-20
通讯作者: 寿春晖 E-mail:hongl_92@163.com;shouchunhui@zjenergy.com.cn
作者简介:洪凌（1992-），女，硕士，工程师，研究方向为光伏性能测试评价、燃料电池系统分析等。E-mail：hongl_92@163.com

Modeling and Simulation of SOFC System with Heat Transfer among BoP Components

Ling Hong(), Rongmin Wu, Jianwu Zhou, Tian Xia, Xiaojie Li, Pengjie Tian, Hao Peng, Chunhui Shou()

Zhejiang Provincial Key Laboratory of Solar Energy Utilization & Energy Saving Technology, Zhejiang Energy Group R&D, Hangzhou 311121, China

Received:2022-03-29 Revised:2022-06-01 Online:2022-07-30 Published:2022-07-20
Contact: Chunhui Shou E-mail:hongl_92@163.com;shouchunhui@zjenergy.com.cn

摘要/Abstract

摘要：

高温固体氧化物燃料电池（solid oxide fuel cell，SOFC）是一种高温高效的氢电转换装置，其高温工作环境对系统电堆和辅助部件（balance of plants，BoP）的保温绝热提出极高要求。考虑SOFC系统BoP热区内多部件之间存在的热交换，结合高温系统有限的可测数据，开展基于热效率?传热单元数法（ε-NTU法）的高温SOFC系统集总建模；通过模拟BoP热区内零部件与环境的热交换，实现BoP热区内多部件间的传热和温度定量分析；通过设计简洁的反馈控制器实现系统的自启动和稳定运行仿真。仿真结果表明，BoP热区整体保温绝热起温度均衡作用，有利于尾气余热对进气气体的进一步加热，也可适当降低设备最高温度，有利于系统长期运行。

关键词: 固体氧化物燃料电池, 集总模型, 热传递, 保温绝热, 反馈控制

Abstract:

High temperature solid oxide fuel cell (SOFC) is a high temperature and efficient hydrogen-electric conversion device. Its high temperature operating environment puts forward higher requirements for thermal insulation of stack and balance of plants(BoP) in the system. In this paper, a lumped SOFC system model is established based on the thermal efficiency-heat transfer unit number method (ε-NTU method), in combination with limited measurable parameters for high-temperature system.Quantitative analysis of components temperature and heat transfer among components can be achieved by heat exchange simulation between components and BoP hot-box environment. A simple feedback controlleris designed for system self-starting and operation. Results show that the BoP hot-box plays the role of temperature balance, which is benefit for waste heat utilization by heating the inlet gas, and lower the highest equipment temperature for a longer system lifetime.

Key words: SOFC(solid oxide fuel cell), lumped model, heat transfer, thermal insulation, feedback control

中图分类号:

TP391.9

洪凌, 邬荣敏, 周剑武, 夏天, 李晓洁, 田彭杰, 彭浩, 寿春晖. 考虑BoP热区内部件间热传递的SOFC系统建模仿真[J]. 系统仿真学报, 2022, 34(7): 1383-1392.

Ling Hong, Rongmin Wu, Jianwu Zhou, Tian Xia, Xiaojie Li, Pengjie Tian, Hao Peng, Chunhui Shou. Modeling and Simulation of SOFC System with Heat Transfer among BoP Components[J]. Journal of System Simulation, 2022, 34(7): 1383-1392.

图/表 12

图1

图2

表1

符号表

变量	含义
n/(mol·s^-1)	摩尔流量
Cp/J·(mol·K^-1)	比热容
q/(J·s^-1)	单位时间传热量
T/K	温度
C/(K·s)	热容量率
$Δ H$ /(J·mol^-1)	焓变
F/SLM	体积流量
k	传热系数
r	比例系数

表1

表2

图3

表3

模型主要参数

序号	主要参数	量值
1	电堆电池片数/片	300
2	周边环境温度/℃	25.00
3	环境换热效率 $k e n v$	0.20
4	汽化潜热温度/℃	108.74
5	汽化潜热焓值/kJ·mol^-1	2 311.50
6	重整器等效面积 $A b$ /m²	2.5
7	重整反应效率 $η S R$	0.68
8	换热器换热效率ε	0.80
9	燃气换热器等效面积 $A b$ /m²	1.0
10	空气换热器等效面积 $A b$ /m²	1.8

表3

图4

图5

图6

图7

图8

图9

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元素	比重
H₂	76
CO	9
CO₂	15
NH₃, CH₄, SO _x	少许

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考虑BoP热区内部件间热传递的SOFC系统建模仿真

Modeling and Simulation of SOFC System with Heat Transfer among BoP Components

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