| 运用MATLAB实现换热网络动态特性的通用自动求解 |
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| 引用本文： | 姜涛,崔国民. 运用MATLAB实现换热网络动态特性的通用自动求解[J]. 华北电力大学学报(自然科学版), 2010, 37(1) |
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| 作者姓名： | 姜涛 崔国民 |
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| 作者单位： | 上海理工大学,热工程研究所,上海,200093;上海理工大学,热工程研究所,上海,200093 |
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| 基金项目： | 国家自然科学基金资助项目(200406011);;教育部博士点基金(200802520007);;上海市教育委员会发展基金(07ZZ85);;上海市重点学科建设项目(S30503) |
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| 摘 要： | 提出一种换热网络动态特性的通用求解方法,该方法首先将单体换热器处理成带滞后的一阶惯性环节,以单体换热器为模块,连接各个换热器形成换热网络的信号流图,以换热器入口信号是否准备好作为模块计算依据,采用以模块为核心的动态求解策略依次求解各个换热器,直到所有换热器计算完毕,最终获得各个换热器的出口传递函数。同时利用MATLAB强大的符号运算功能,编制了自动求解程序,使得计算方便简洁,且计算速度快,通用性强。
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| 关 键 词： | 换热网络 传递函数 动态特性 |
A general solution for dynamic behavior of heat exchanger networks based on MATLAB |
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| JIANG Tao,CUI Guo-min. A general solution for dynamic behavior of heat exchanger networks based on MATLAB[J]. Journal of North China Electric Power University, 2010, 37(1) |
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| Authors: | JIANG Tao CUI Guo-min |
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| Affiliation: | Institute of thermal engineering;University of Shanghai for Science and Technology;Shanghai 200093;China |
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| Abstract: | A general method is proposed and used to investigate the dynamic behavior of heat exchanger networks in this work.Firstly,a single heat exchanger is treated as a first order inertia link,and its transfer functions and signal flow graph are achieved.Furthermore,the signal flow graph of heat exchanger networks is formed according to the transitive relations among fluids.Each heat exchanger is dynamic calculated if all input signals of this heat exchanger are ready.The transfer functions are obtained when all ... |
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| Keywords: | heat exchanger networks transfer function dynamic behavior |
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