Computations of Radiative Heat Transfer inside Buildings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU131532" target="_blank" >RIV/00216305:26110/19:PU131532 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/471/6/062006/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/471/6/062006/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/471/6/062006" target="_blank" >10.1088/1757-899X/471/6/062006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computations of Radiative Heat Transfer inside Buildings

Popis výsledku v původním jazyce

The present conference contribution is devoted to the application of the theoretical model of radiative heat transfer formulated in our first conference contribution entitled “General Formalism for the Computation of Radiative Heat Transfer”. In that preceding contribution, a general model for radiative heat transfer in inner spaces of buildings has been developed and the present contribution illustrates its application to a simple room. The room consists of two surfaces, namely, the heated circular floor and arched ceiling (cupola). The processing of this two-surface room has been accomplished by two methods, i.e. by means of view factors along with radiosities and alternatively by means of mutual emissivities. The model based on radiosity is quite general and is not restricted to a certain number of surfaces whereas the second model based on mutual emissivities is restricted only to two-surface rooms. These two alternative procedures offer the comparison of their computational effectiveness. The behaviour of the radiative heat flow in closed two-surface envelopes is subjected to analysis and numerical computations have shown that the total radiative heat flows tend to reach the compensation state in which the positive flow of the warm surface is compensated by the negative flow of the cold surface.

Název v anglickém jazyce

Computations of Radiative Heat Transfer inside Buildings

Popis výsledku anglicky

The present conference contribution is devoted to the application of the theoretical model of radiative heat transfer formulated in our first conference contribution entitled “General Formalism for the Computation of Radiative Heat Transfer”. In that preceding contribution, a general model for radiative heat transfer in inner spaces of buildings has been developed and the present contribution illustrates its application to a simple room. The room consists of two surfaces, namely, the heated circular floor and arched ceiling (cupola). The processing of this two-surface room has been accomplished by two methods, i.e. by means of view factors along with radiosities and alternatively by means of mutual emissivities. The model based on radiosity is quite general and is not restricted to a certain number of surfaces whereas the second model based on mutual emissivities is restricted only to two-surface rooms. These two alternative procedures offer the comparison of their computational effectiveness. The behaviour of the radiative heat flow in closed two-surface envelopes is subjected to analysis and numerical computations have shown that the total radiative heat flows tend to reach the compensation state in which the positive flow of the warm surface is compensated by the negative flow of the cold surface.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/ME09046" target="_blank" >ME09046: Vývoj nové nedestruktivní metody pro posuzování pevnosti v tlaku hydratovaných cementových materiálů</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

WMCAUS 2018 - Abstract Collection Book

ISBN

—

ISSN

1757-8981

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

IOP Publishing

Místo vydání

UK

Místo konání akce

Praha

Datum konání akce

18. 6. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000465811802057