Optimization of plate heat exchangers with intermittent ridges

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F14%3A%230006313" target="_blank" >RIV/46747885:24210/14:#0006313 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Optimization of plate heat exchangers with intermittent ridges

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Optimization of plate heat exchangers with intermittent ridges

Popis výsledku anglicky

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

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

<a href="/cs/project/TA01020313" target="_blank" >TA01020313: Vývoj entalpického výměníku tepla vzduch-vzduch</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Advanced Engineering and Technology

ISBN

978-3-03835-442-0

ISSN

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e-ISSN

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Počet stran výsledku

8

Strana od-do

820-827

Název nakladatele

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Místo vydání

South Korea

Místo konání akce

Incheon, South Korea

Datum konání akce

1. 1. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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