Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/64579
Title: Sequential methodology for integrated optimization of energy and water use during batch process scheduling
Authors: Halim, I.
Srinivasan, R. 
Keywords: Continuous-time formulation
Heat integration
Multi-purpose plant
Scheduling
Wastewater minimization
Water reuse synthesis
Issue Date: 10-Aug-2011
Citation: Halim, I., Srinivasan, R. (2011-08-10). Sequential methodology for integrated optimization of energy and water use during batch process scheduling. Computers and Chemical Engineering 35 (8) : 1575-1597. ScholarBank@NUS Repository.
Abstract: Though commonly encountered in practice, energy and water minimization simultaneously during batch process scheduling has been largely neglected in literature. In this paper, we present a novel framework for incorporating simultaneous energy and water minimization in batch process scheduling. The overall problem is decomposed into three parts - scheduling, heat integration, and water reuse optimization - and solved sequentially. Our approach is based on the precept that in any production plant, utilities (energy and water) consumption is subordinate to the production target. Hence, batch scheduling is solved first to meet an economic objective function. Next, alternate schedules are generated through a stochastic search-based integer cut procedure. For each resulting schedule, minimum energy and water reuse targets are established and networks identified. As illustrated using two well-known case studies, a key feature of this approach is its ability to handle problems that are too complex to be solved using simultaneous methods. © 2011 Elsevier Ltd.
Source Title: Computers and Chemical Engineering
URI: http://scholarbank.nus.edu.sg/handle/10635/64579
ISSN: 00981354
Appears in Collections:Staff Publications

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