HEAT TRANSFER MODELLING OF TWO-PHASE FLOW IN ISOLATED CHANNEL

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F18%3A00322150" target="_blank" >RIV/68407700:21340/18:00322150 - isvavai.cz</a>

Výsledek na webu

<a href="https://ojs.cvut.cz/ojs/index.php/APP/article/view/4847" target="_blank" >https://ojs.cvut.cz/ojs/index.php/APP/article/view/4847</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2018.14.0042" target="_blank" >10.14311/APP.2018.14.0042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

HEAT TRANSFER MODELLING OF TWO-PHASE FLOW IN ISOLATED CHANNEL

Popis výsledku v původním jazyce

This paper deals with Post-CHF (critical heat flux) heat transfer with the focus on different regimes of film boiling. The new thermal-hydraulic code TUBE 2.0 is presented. This code uses the equation of energy conservation and predefined correlations to establish wall temperature, the departure of nucleate boiling ratio as well as other parameters of cooling in a simple geometry - an isolated channel. With experimental data of inverted annular film boiling from Stewart, the best-performing correlation for calculation of post-CHF heat transfer in the channel was determined. Finally, the new presented code TUBE 2.0 and subchannel code SUBCAL owned by Chemcomex a.s. are compared using results of various experiments conducted by Becker. Data from Stewart could not be used because of inability to predict the onset of boiling crisis with several correlations.

Název v anglickém jazyce

HEAT TRANSFER MODELLING OF TWO-PHASE FLOW IN ISOLATED CHANNEL

Popis výsledku anglicky

This paper deals with Post-CHF (critical heat flux) heat transfer with the focus on different regimes of film boiling. The new thermal-hydraulic code TUBE 2.0 is presented. This code uses the equation of energy conservation and predefined correlations to establish wall temperature, the departure of nucleate boiling ratio as well as other parameters of cooling in a simple geometry - an isolated channel. With experimental data of inverted annular film boiling from Stewart, the best-performing correlation for calculation of post-CHF heat transfer in the channel was determined. Finally, the new presented code TUBE 2.0 and subchannel code SUBCAL owned by Chemcomex a.s. are compared using results of various experiments conducted by Becker. Data from Stewart could not be used because of inability to predict the onset of boiling crisis with several correlations.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10300 - Physical sciences

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Student Conference on Nuclear Engineering Šimáně 2017

ISBN

978-80-01-06426-9

ISSN

—

e-ISSN

2336-5382

Počet stran výsledku

7

Strana od-do

49-55

Název nakladatele

Czech Technical University in Prague

Místo vydání

Praha

Místo konání akce

Praha, Břehová 7

Datum konání akce

6. 11. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—