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低温过程多流股换热器网络综合 被引量:2

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摘要 多流股换热器主要应用在低温过程领域.本文针对低温过程换热器网络的特点,基于流股虚拟温度的T-H图提出了利用遗传/模拟退火算法进行低温过程换热网络综合的方法.低温过程传热温差较小,在流股温差贡献值的选取上充分考虑了流股热力学平均温度的影响,使其取值更加合理;冷公用工程的利用不同于常温换热网络,温度越低其相应的费用越高,通过采用分批-逐次利用的原理分配冷公用工程,得到冷公用工程的温位及相应的匹配位置,能够有效地利用过程系统的传热温差,降低换热网络的操作费用;该方法利用虚拟T-H图法产生初始解,具有决策变量少,产生初始解均为可行的特点,能显著提高遗传模拟退火算法的计算效率,并适用于不同材质、不同传热膜系数网络的设计和优化;以国内某乙烯装置脱甲烷塔预冷系统综合为实例进行了分析.
出处 《化工进展》 EI CAS CSCD 北大核心 2006年第z1期490-495,共6页 Chemical Industry and Engineering Progress
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  • 1马相坤,姚平经,钱新华,魏哲如,LUO Xing,ROETZEL Wilfried.乙烯装置预冷系统换热网络的节能优化[J].现代化工,2006,26(z2):306-311. 被引量:3
  • 2王洪海,孙永烈,胡荣君,庄铁柱.实际工程中混合模型的任务可靠性分配方法[J].航空工程进展,2010,1(4):407-411. 被引量:2
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