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A methodology for the synthesis of heat exchanger networks having large numbers of uncertain parametersNovak-Pintarič, Zorka ; Kravanja, ZdravkoThis paper presents a robust computational methodology for the synthesis and design of flexible HEN (Heat Exchanger Networks) having large numbers of uncertain parameters. This methodology combines ... several heuristic methods which progressively lead to a flexible HEN design at a specific level of confidence. During the first step, a HEN topology is generated under nominal conditions followed by determining those points critical for flexibility. A significantly reduced multi-scenario model for flexible HEN design is formulated at the nominal point with the flexibility constraints at the critical points. The optimal design obtained is tested by stochastic Monte Carlo optimization and the flexibility index through solving one-scenario problems within a loop. This presented methodology is novel regarding the enormous reduction of scenarios in HEN design problems, and computational effort. Despite several simplifications, the capability of designing flexible HENs with large numbers of uncertain parameters, which are typical throughout industry, is not compromised. An illustrative case study is presented for flexible HEN synthesis comprising 42 uncertain parameters.Source: Energy. - ISSN 0360-5442 (part 3, Vol. 92, 1 Dec. 2015, str. 373-382)Type of material - article, component partPublish date - 2015Language - englishCOBISS.SI-ID - 18589462
Author
Novak-Pintarič, Zorka |
Kravanja, Zdravko
Topics
heat exchanger network |
designed |
synthesis |
uncertain parameters |
flexibility
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Database name | Field | Year |
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Novak-Pintarič, Zorka | 11369 |
Kravanja, Zdravko | 06005 |
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