单组分体系质量交换网络和换热网络同步综合  

Simultaneous design of heat and mass exchanger networks for single component systems

作　　者：刘琳琳[1] 都健[1] 陈理[2] 姚平经[1] 

机构地区：[1]大连理工大学化工系统工程研究所,大连116024 [2]大连大学环境与化学工程学院,大连116622

出　　处：《清华大学学报（自然科学版）》2012年第3期314-319,共6页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金项目(20976022);大连理工大学交叉学科建设项目"能源+X"

摘　　要：为实现单组份体系质量交换网络(mass exchanger network,MEN)和换热网络(heat exchanger network,HEN)同步综合,提出一种新的综合方法,并针对过程系统中质量交换网络和换热网络耦合关系强、连接参数(传质温度)作为优化变量在两网络同步优化时难度大的问题提出了解决方案。采用质量夹点法综合质量交换网络、虚拟温焓图法综合换热网络来构造总网络数学模型,并通过提出连接参数与总网络同时优化的策略,实现质量和换热总网络(com-bined mass and heat exchanger network,CM&HEN)全局同步优化。采用实例对所提方法进行验证,结果表明:该方法所需的年度总费用更低,说明该方法不仅能够实现同步综合,而且能获得更优解。A method is given for simultaneous design of a mass exchanger network and a heat exchanger network for single component systems. This method combines the mass pinch approach for the mass exchanger and the pseudo TH diagram approach for the heat exchanger together in a mathematical model with the connection parameters （mass transfer temperatures） between the two sub-networks as the optimization variables. The optimization of connection parameters is difficult because the mass transfer and the heat transfer are tightly coupled. Therefore, this paper gives an optimization strategy for global optimization of the connection parameters and the combined heat and mass transfer networks. An example given to illustrate the method shows how annual costs are reduced and that this method provides simultaneous optimization to give the best solution.

关 键 词：质量交换网络 换热网络 质量和换热总网络 同步综合 年度总费用 

分 类 号：TQ021.8[化学工程]