Synthesis and design of chilled water networks using mathematical optimization
Journal
Applied Thermal Engineering
Journal Volume
58
Journal Issue
1-2
Pages
638-649
Date Issued
2013
Author(s)
Abstract
This paper presents a mathematical optimization approach for the synthesis and design of chilled water networks. In this work, the main focus is given to efficient use of chilled water, with opportunities for reuse/recycle explored in order to lower the overall chilled water flow rate supplied to the network. Based on a superstructure that includes all possible network connections, mathematical models are developed for different integration schemes. Other than minimizing the chilled water requirement, a conflicting objective is included in the model to reduce network complexity and to improve flexibility. The design problems are formulated as mixed-integer nonlinear programming models. Two industrial case studies are used to illustrate the proposed approach. ? 2013 Published by Elsevier Inc.
Subjects
Chilled water network
Mixed-integer nonlinear program (MINLP)
Process integration
Resource conservation
Superstructure modeling
Type
journal article