Simultaneous synthesis of heat exchanger networks with pressure recovery: optimal integration between heat and work
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Title: | Simultaneous synthesis of heat exchanger networks with pressure recovery: optimal integration between heat and work |
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Authors: | Onishi, Viviani C. | Ravagnani, Mauro A.S.S. | Caballero, José A. |
Research Group/s: | Computer Optimization of Chemical Engineering Processes and Technologies (CONCEPT) |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Química |
Keywords: | Optimization | Mathematical modeling | Heat exchanger network (HEN) | Energy integration | Pressure recovery |
Knowledge Area: | Ingeniería Química |
Issue Date: | Dec-2013 |
Publisher: | American Institute of Chemical Engineers (AIChE) |
Citation: | AIChE Journal. 2013, Accepted Article. doi:10.1002/aic.14314 |
Abstract: | The optimal integration between heat and work may significantly reduce the energy demand and consequently the process cost. This paper introduces a new mathematical model for the simultaneous synthesis of heat exchanger networks (HENs) in which the pressure levels of the process streams can be adjusted to enhance the heat integration. A superstructure is proposed for the HEN design with pressure recovery, developed via generalized disjunctive programming (GDP) and mixed-integer nonlinear programming (MINLP) formulation. The process conditions (stream temperature and pressure) must be optimized. Furthermore, the approach allows for coupling of the turbines and compressors and selection of the turbines and valves to minimize the total annualized cost, which consists of the operational and capital expenses. The model is tested for its applicability in three case studies, including a cryogenic application. The results indicate that the energy integration reduces the quantity of utilities required, thus decreasing the overall cost. |
Sponsor: | The authors acknowledge financial support from the Brazilian agency “Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – CAPES”, under process 10758/12-7. The Spanish Ministry of Science and Innovation and Ministry of Economy and Competitiveness, under project CTQ2012-37039-C02-02, are gratefully acknowledged. |
URI: | http://hdl.handle.net/10045/34541 |
ISSN: | 0001-1541 (Print) | 1547-5905 (Online) |
DOI: | 10.1002/aic.14314 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2013 American Institute of Chemical Engineers AIChE J, 2013 |
Peer Review: | si |
Publisher version: | http://dx.doi.org/10.1002/aic.14314 |
Appears in Collections: | INV - CONCEPT - Artículos de Revistas |
Files in This Item:
File | Description | Size | Format | |
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2013_Onishi_etal_AIChE-Journal.pdf | Accepted Manuscript (acceso abierto) | 2,04 MB | Adobe PDF | Open Preview |
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