摘要
为了确定化工系统中优化改造部件的顺序,针对化工系统的实际特点,提出了建立整体系统目的效率同子系统目的效率关系的数学模型的方法,并且提出了整体效率影响因子的概念作为用能系统优化改造的指导原则。同时以热法磷酸生产系统为例进行了建模分析,计算得到了分析的关系模型和各个设备的整体效率影响因子,指出了系统中用能的薄弱环节和改造的重点方向在燃烧塔和水化塔,并同单个子系统目的效率及流图得到的结果和实际改造的结果进行了比较,结果显示,该文方法能够准确方便地指出化工系统能量利用合理性改造的重点方向。
An optimization modeling method was developed for chemical engineering systems using an exergy-efficiency analysis. The Integrated-efficiency Influence Quotient (IIQ) was defined as the optimization turget. The production of phosphoric acid was used as an example. The IIQ for all the units showed that the phosphoric furnace and hydration column have the lowest energy utilization efficiences in need of optimization. The results compare.well with exergy flow and object exergy efficiency analyses and results of real processes to show that this optimization method provides good results.
出处
《清华大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2006年第8期1473-1477,共5页
Journal of Tsinghua University(Science and Technology)
基金
国家"九七三"重点基础研究项目(G2000026307)
关键词
(火用)分析
化工系统
模型
影响因子
exergy analysis
chemical engineering system
model
influence quotient