高温紧凑板翅式换热器稳态和动态性能的研究.pdf

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第 28 卷第 2 期动力工程 Vol. 28 No. 2
2008 年 4 月 Journal of Power Engineering Apr. 2008
文章编号:1000 6761 (2008) 02 0255 04
高温紧凑板翅式换热器稳态和动态性能的研究
王礼进, 张会生, 翁史烈
(上海交通大学动力机械与工程教育部重点实验室,上海 200240)
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摘要: 建立了紧凑板翅式换热器的动态数学模型. 为了满足系统快速动态仿真的需要,采用容阻
特性建模技术建立2 了紧凑板翅式换热器的仿真模型. 在相同的运行条件下,对不同的高温板翅固体
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材料进行了稳态和动态仿真研究. 结果表明:在不同的材料条件下,高温板翅式换热器的稳态性能
基本相同;但不同材料的动态特性时间不同,硅碳陶瓷材料具有较小的延迟时间,常规高温合金材
料延迟较大.
关键词: 工程热物理; 紧凑板翅式换热器; 高温; 容阻特性建模; 板翅材料; 性能
中图分类号: T K121 文献标识码: A
Steady state and Dynamic Performance of High
pact Plate Fin Heat Exchanger
W A N G L i j i n , Z HA N G H ui sheng , W EN G S hi lie
(MO E’S Key Lab of Power Machinery and Engineering , Shanghai
Jiaotong University , Shanghai 200240 , China)
Abstract : To better optimize t he power system and imp rove t he efficiency , t he research and optimization of
high temperat pact plate fin heat exchanger ( CPF H E) is very important . Dynamic mathematical
model of CPF H E is established , and Volume Resistance dynamic model is pleted based on t he
distributed and lumped parameter technique for t he demand of t he rapidly dynamic simulation. Under t he
same operating condition , the steady state and transient simulation is studied for different high plate fin
materials. The steady result s indicate t hat t he steady performances are almost consistent ; but t he dyna