Simultaneous optimal integration of water utilization and heat exchange networks using holistic mathematical programming |
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Authors: | Wu Xiao Rui-jie Zhou Hong-Guang Dong Nan Meng Chih-Yao Lin Vincentius Surya Kurnia Adi |
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Affiliation: | (3) Dept. Chemical Engin. Univ. Cincinnati, Cincinnati, OH 45221, USA; |
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Abstract: | A systematic holistic mathematical programming (HMP) is proposed to formulate a mixed integer nonlinear programming (MINLP)
model for one-step optimization of water-allocation and heat exchange network (WAHEN) designs with single- or multi-contaminant
water streams. The proposed model formulation and solution strategy are believed to be superior to the available ones in the
following aspects. First, a comprehensive representation combining two separate superstructures is adopted to capture the
structural characteristics of the integrated WAHEN. Then, a hybrid optimization strategy integrating stochastic and deterministic
components is developed for the resulting MINLP model and, also, an interactive iteration method is adopted based on sensitivity
analysis to guide the search toward a potential global optimum. Finally, evolutionary strategies and manipulations are executed
to enhance WAHEN configurations. Two illustrative examples are presented to demonstrate the validity and advantages of the
proposed approach. |
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Keywords: | |
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