蒸汽管网的建模和设计优化

Modeling and optimal design for steam network

采用树状超结构简化蒸汽管网,建立以总投资费用最低为目标函数的优化模型,在此基础上,根据蒸汽需求量的不同对用户分级,提出分级递进的优化思路。以分枝角度α和分枝管长xi为变量,将黄金分割法和单纯形法相结合,建立了一种分级递进的蒸汽管网复合优化方法。实例表明了本文提出的蒸汽管网优化方法的实践可行性和结果准确性。

Tree structure was used to simplify steam network,the solving model and optimization program were built.Combined golden section search with simplex method,main pipe's oblique angle and users' branching pipe length at the main pipe were designed to be optimal variables.The whole network was optimized in a step-by-step calculative method.Analysis and comparison were made.the results show that the model and optimization program are accurate and practicable.