Stochastic optimization of a multi-layer wall design with phase change materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU98562" target="_blank" >RIV/00216305:26210/12:PU98562 - 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

Stochastic optimization of a multi-layer wall design with phase change materials

Popis výsledku v původním jazyce

Phase change materials (PCMs) are materials that are able to absorb, store and subsequently release energy utilizing the latent heat of phase change. The amount of latent heat is usually significantly larger than that of sensible heat thereby the sufficient energy storage can be reached. The composition of PCM, which determines the temperature of phase change, is chosen according to a particular application and operating conditions. In the last decade the rapid development of phase change materials has been accomplished and in these days the phase change materials are being widely used in civil engineering and building architecture to decrease the temperature fluctuation, energy consumption and to improve the thermal inertia. The optimal design and integration of PCMs in buildings cannot be achieved without the usage of computer simulation tools, optimization techniques and experiments. In numerical modeling it is crucial to properly determine the operating conditions and thermo-physical properties of used materials since these inputs significantly influence the accuracy and credibility of simulation results. Unfortunately, in the real world these parameters are not fully known and they tend to randomly alter, mainly due to a variable composition, moisture content and other factors. The paper is aimed at the optimization of the thickness of PCM layer in a multi-layer wall under uncertain heat transfer coefficients on the wall and at the investigation of its influence. This is accomplished by utilizing stochastic optimization techniques and a scenario approach.

Název v anglickém jazyce

Stochastic optimization of a multi-layer wall design with phase change materials

Popis výsledku anglicky

Phase change materials (PCMs) are materials that are able to absorb, store and subsequently release energy utilizing the latent heat of phase change. The amount of latent heat is usually significantly larger than that of sensible heat thereby the sufficient energy storage can be reached. The composition of PCM, which determines the temperature of phase change, is chosen according to a particular application and operating conditions. In the last decade the rapid development of phase change materials has been accomplished and in these days the phase change materials are being widely used in civil engineering and building architecture to decrease the temperature fluctuation, energy consumption and to improve the thermal inertia. The optimal design and integration of PCMs in buildings cannot be achieved without the usage of computer simulation tools, optimization techniques and experiments. In numerical modeling it is crucial to properly determine the operating conditions and thermo-physical properties of used materials since these inputs significantly influence the accuracy and credibility of simulation results. Unfortunately, in the real world these parameters are not fully known and they tend to randomly alter, mainly due to a variable composition, moisture content and other factors. The paper is aimed at the optimization of the thickness of PCM layer in a multi-layer wall under uncertain heat transfer coefficients on the wall and at the investigation of its influence. This is accomplished by utilizing stochastic optimization techniques and a scenario approach.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/OC10051" target="_blank" >OC10051: Využití materiálů se změnou skupenství pro vyšší efektivnost solárních vzduchových systémů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Innostock 2012 conference on Energy Storage

ISBN

978-84-938793-3-4

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

168-177

Název nakladatele

GREA Innovacio Concurrent, University of Lleida

Místo vydání

Lleida, Španělsko

Místo konání akce

Lleida

Datum konání akce

16. 5. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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