Synthesis of Interplant Water-Allocation and Heat-Exchange Networks. Part 1: Fixed Flow Rate Processes

Abstract

This paper is part 1 of a series dealing with the design of integrated interplant water-allocation and heat-exchange networks (IWAHENs), a special case of interplant network synthesis with multiple physical properties. Traditionally, the tasks of optimizing water-allocation networks (WANs) and heat exchange networks (HENs) were either performed individually or studied within a single plant. In this paper, a novel multiscale state−space superstructure is developed to capture all possible network configurations for the fixed flow rate (FF) IWAHEN designs with both direct and indirect integration schemes. In addition, our model has been simplified to deal with the interplant HEN design where the optimal utility network can be determined simultaneously. By properly addressing the interactions between different plants as well as the WAN and HEN subsystems, lower total annualized cost (TAC) can be obtained in all examples by solving the corresponding mixed-integer nonlinear programming (MINLP) model.

Quantitative tools for cultivating symbiosis in industrial parks; a literature review

“…Then the energy consumption was minimized subject to the bounds defined by the first step by parameterizing the number of heat exchangers and the number of connections. Zhou et al [98] constructed a multiscale state-space superstructure model for fixed flow rate processes in IWAHEN networks. The model was later expanded to address fixed flow rate and fixed contaminant systems [99].…”

An MINLP model for the simultaneous integration of energy, mass and properties in water networks

“…Initial efforts have been recently reported for the development of models that simultaneously integrate mass and energy (Savalescu et al, 2005a(Savalescu et al, , 2005bLiao et al, 2011;Martinez-Patiño et al, 2011Tan et al, 2012;Zhou et al, 2012aZhou et al, , 2012bBiox et al, 2012;Rojas-Torres et al, 2013;Ibric et al, 2013;Liu et al, 2013;Kravanja, 2013, 2014). In such works, the contribution of mass integration is typically based on the concentration of contaminants, thus ignoring the role that streams properties play in the design of the network.…”

Synthesis of Interplant Water-Allocation and Heat-Exchange Networks. Part 2: Integrations between Fixed Flow Rate and Fixed Contaminant-Load Processes

“…For simplicity, the descriptions of these two superstructures are omitted and the reader can refer to section 3 of our previous work. 2 …”