Analysis of the effect of relative humidity on the convective heat transfer coefficient using full-scale experiments in a climatic wind tunnel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00617843" target="_blank" >RIV/68378297:_____/25:00617843 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/en18040810" target="_blank" >https://doi.org/10.3390/en18040810</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/en18040810" target="_blank" >10.3390/en18040810</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of the effect of relative humidity on the convective heat transfer coefficient using full-scale experiments in a climatic wind tunnel

Popis výsledku v původním jazyce

The effect of relative humidity on the convective heat exchange between a solid surface and an ambient air stream is analyzed in this study. In the experimental part, a unique closed-circuit climatic wind tunnel is utilized, allowing full-scale experiments to be conducted with full control over the environmental parameters defining the experimental boundary conditions. The experimental configuration, which includes a specific design of a specimen to promote a controlled heat flow through the specimen body, might bring new insights into the field of energy-related calculations or prediction of building energy consumption. The novelty of this work lies in the implementation of relative humidity as an independent factor within thermal modelling, which might contribute to increasing the accuracy of building energy simulation models. The computational analysis of experimental results indicates relative humidity as an important parameter, which can affect the convective heat transfer coefficient by up to 37%. The major effects have been observed after exceeding a relative humidity of 50–55%.

Název v anglickém jazyce

Analysis of the effect of relative humidity on the convective heat transfer coefficient using full-scale experiments in a climatic wind tunnel

Popis výsledku anglicky

The effect of relative humidity on the convective heat exchange between a solid surface and an ambient air stream is analyzed in this study. In the experimental part, a unique closed-circuit climatic wind tunnel is utilized, allowing full-scale experiments to be conducted with full control over the environmental parameters defining the experimental boundary conditions. The experimental configuration, which includes a specific design of a specimen to promote a controlled heat flow through the specimen body, might bring new insights into the field of energy-related calculations or prediction of building energy consumption. The novelty of this work lies in the implementation of relative humidity as an independent factor within thermal modelling, which might contribute to increasing the accuracy of building energy simulation models. The computational analysis of experimental results indicates relative humidity as an important parameter, which can affect the convective heat transfer coefficient by up to 37%. The major effects have been observed after exceeding a relative humidity of 50–55%.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA22-08786S" target="_blank" >GA22-08786S: Přenos tepla v mezních vrstvách při povrchu obvodových plášťů budov a jeho vliv na energetickou náročnost objektů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Energies

ISSN

1996-1073

e-ISSN

1996-1073

Svazek periodika

18

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

810

Kód UT WoS článku

001431616800001

EID výsledku v databázi Scopus

2-s2.0-85219207933