About: Optimization of plate heat exchangers with intermittent ridges

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	This study deals with a plate heat exchanger with intermittent ridges. We used software Fluent and so-called “user defined deforming” to deform computational mesh and create various shapes of heat exchange surfaces with different count of ridges and different count of set-offs. The intention of the set-offs is to discompose boundary layer inside channels, which are created by ridges, mix the temperature field and thus intensify the heat transfer. We used previously formulated objective function, which is a linear combination of efficiency and pressure loss, and a simple local method to optimize the shape of the heat exchange surface for required pressure loss. It was found that the objective function surface is monotone and unimodal, but it is not smooth. The global optimums were identified and it was shown that the optimal wall shape has no set-off for low pressure losses. The optimal count of ridges and optimal count of set-offs rise with higher required pressure loss. It was proved that the suggested objective function is suitable for optimization of a counterflow plate heat exchanger, but use of a global optimization method would be beneficial. This study deals with a plate heat exchanger with intermittent ridges. We used software Fluent and so-called “user defined deforming” to deform computational mesh and create various shapes of heat exchange surfaces with different count of ridges and different count of set-offs. The intention of the set-offs is to discompose boundary layer inside channels, which are created by ridges, mix the temperature field and thus intensify the heat transfer. We used previously formulated objective function, which is a linear combination of efficiency and pressure loss, and a simple local method to optimize the shape of the heat exchange surface for required pressure loss. It was found that the objective function surface is monotone and unimodal, but it is not smooth. The global optimums were identified and it was shown that the optimal wall shape has no set-off for low pressure losses. The optimal count of ridges and optimal count of set-offs rise with higher required pressure loss. It was proved that the suggested objective function is suitable for optimization of a counterflow plate heat exchanger, but use of a global optimization method would be beneficial. (en)
Title	Optimization of plate heat exchangers with intermittent ridges Optimization of plate heat exchangers with intermittent ridges (en)
skos:prefLabel	Optimization of plate heat exchangers with intermittent ridges Optimization of plate heat exchangers with intermittent ridges (en)
skos:notation	RIV/46747885:24210/14:#0006313!RIV15-TA0-24210___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TA01020313)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Dvořák, Václav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Technická univerzita v Liberci / Fakulta strojní
http://linked.open...dnocenehoVysledku	34968
http://linked.open...ai/riv/idVysledku	RIV/46747885:24210/14:#0006313
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	heat exchanger; CFD; optimisation (en)
http://linked.open.../riv/klicoveSlovo	CFD optimisation heat exchanger
http://linked.open...ontrolniKodProRIV	[B84131577190]
http://linked.open...v/mistoKonaniAkce	Incheon, South Korea
http://linked.open...i/riv/mistoVydani	South Korea
http://linked.open...i/riv/nazevZdroje	Advanced Engineering and Technology
http://linked.open...in/vavai/riv/obor	JE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	Development of the enthalpy heat exchanger air to air
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Dvořák, Václav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-01-01 (xsd:date)
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Neuveden
https://schema.org/isbn	978-3-03835-442-0
http://localhost/t...ganizacniJednotka	24210

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