基于(火积)耗散热阻的换热器网络优化

被引：8

作者：

王怡飞

陈群

机构：

[1] 清华大学工程力学系

来源：

化工学报 | 2015年 / 66(S1)卷 / S1期

关键词：

换热器网络; 优化; (火积)耗散热阻; 变频水系统; 运行参数;

D O I：

暂无

中图分类号：

TK172 [换热设备];

学科分类号：

摘要：

基于(火积)耗散热阻的概念,分析了换热器网络中的传热过程,并结合变频泵的性能分析和管网的阻力分析,建立了换热器网络中结构参数、运行参数和用户需求之间的直接联系,完善了换热器网络优化的数学模型。在此基础上,构建了基于(火积)耗散热阻换热器网络优化的方法。最后以一个典型的有变频水系统的换热器网络为例,阐释了基于(火积)耗散热阻的换热器网络优化方法。研究结果表明,在给定换热器网络中各换热器热导的情况下,通过优化计算可以获得使换热器网络中总泵能耗最小的运行参数。在变工况运行的情况下,随着换热器网络换热量的增大,各变频泵的运行参数出现不同程度的增大,增大的速度与工质的性质和管网的阻力特性等因素有关。

引用

页码：272 / 276

页数：5

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