换热网络模糊综合评价模型研究

Research on the fuzzy and comprehensive evaluation model for heat exchanger networks

给出一种换热网络模糊综合评价方法。采用模糊数学运算,把体现人类社会对换热网络体系的非能量性、非经济性等定性要求及定量要求综合在一起进行评价,通过研究换热网络体系的目标论域与因素指标集之间的相互作用,构造出综合评价矩阵,利用二元对比排序法确定各因素指标的模糊权重向量,建立模糊方程,通过模糊运算得出各方案相对隶属度的大小,以此来反映各个方案的优劣。

A fuzzy and comprehensive evaluation model was proposed. By using fuzzy. mathematics, the qualitative and quantitative requirements such as social environment, operation flexibility and energy on heat exchanger networks were taken into account in the comprehensive evaluation model. The interaction between the object sets of heat exchanger networks and its restraint factors were formulated into an estimating matrix. By making use of the method of dualistic contrast compositor, the fuzzy weight vectors of the restraint factors were determined. So, the fuzzy evaluation equation was proposed, whose results denoting the better solution. The feasibility of the model has been substantiated by its use on the case given in this paper.