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Multilevel strategies for the retrofit of large‐scale industrial water system: A brewery case study
Author(s) -
Tokos Hella,
Pintarič Zorka Novak,
Yang Yongrong,
Kravanja Zdravko
Publication year - 2012
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.12618
Subject(s) - piping , reuse , decomposition , scale (ratio) , schedule , production (economics) , industrial engineering , wastewater , process engineering , engineering , computer science , mathematical optimization , environmental engineering , waste management , mathematics , ecology , physics , macroeconomics , quantum mechanics , economics , biology , operating system
This article presents an approach to designing a large‐scale water system, which integrates water‐using operations and wastewater treatment units in different production sections within the same network. This approach uses a mixed‐integer nonlinear programming (MINLP) model for water reuse and regeneration reuse in batch and semicontinuous processes. The application of this mathematical formulation to large‐scale industrial problems with changing daily production schedule leads to huge and complex mathematical models. Two alternative multilevel strategies are proposed to solve such problems by means of temporal decomposition. The approach is illustrated with a brewery case study that integrates water consumers in two production sections. The results obtained show that, despite the high piping cost, integration of both sections yields better result than the separate water network design in each section. © 2011 American Institute of Chemical Engineers AIChE J, 2012