CAJ | 학술논문

换热网络(HEN)综合是过程系统综合的重要组成部分,可以将换热网络综合过程看作是一个按照一定顺序依次从热物流中取出一定的热量同冷物流进行匹配的过程,并建立相应的不考虑分流的同步综合模型.实际计算表明:该方法是正确的,在综合过程中,不仅减少(或避免)了网络分枝、旁路和混合过程,还降低了网络的复杂性和操作成本.专家系统的引入,实现了对匹配序列搜索的指导作用和对遗传算法产生的无效匹配的过滤作用,缩小了可行匹配的搜索空间和结构参数的搜索域.
환열망락(HEN)종합시과정계통종합적중요조성부분,가이장환열망락종합과정간작시일개안조일정순서의차종열물류중취출일정적열량동랭물류진행필배적과정,병건립상응적불고필분류적동보종합모형.실제계산표명:해방법시정학적,재종합과정중,불부감소(혹피면)료망락분지、방로화혼합과정,환강저료망락적복잡성화조작성본.전가계통적인입,실현료대필배서렬수색적지도작용화대유전산법산생적무효필배적과려작용,축소료가행필배적수색공간화결구삼수적수색역.
The heat exchanger networks(HEN) synthesis is an important part of process system engineering synthesis. It can be considered as a process getting heat from a hot flow in a definite sequence for watching with a cool flow. In this paper, the synchronous synthesis model, which split flows are not taken into account, is proposed. The calculation shows that the method is correct and it not only reduces the numbers of split flows, by-pass but also cuts down the networks complexity and operating cost. The expert system is of help to search possible matches and filtrating invalid matches by means of genetic algorithms and minifying the searching region of possible matches and the parameters of the networks.