Heat transfer from glass melt to cold cap: Effect of heating rate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F19%3A00516608" target="_blank" >RIV/67985891:_____/19:00516608 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/19:43918977

Výsledek na webu

<a href="https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/ijag.13104" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/abs/10.1111/ijag.13104</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ijag.13104" target="_blank" >10.1111/ijag.13104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Heat transfer from glass melt to cold cap: Effect of heating rate

Popis výsledku v původním jazyce

Conversion of feed to glass occurs in the cold cap that floats on the melt pool in a nuclear waste glass melter. The conversion rate (the melting rate or the glass production rate) is controlled by the heat flux delivered to the cold cap from the molten glass. In an attempt to analyze the intricate relationship between the rate of heating, the feed foaming response, and the rate of melting, we measured the change in feed volume at different heating rates by using several melter feeds known to exhibit a wide range of melting rates under identical melter operating conditions. As expected, the maximum foam porosity increased as the heating rate increased. However, contrary to expectation, the temperature at which the foam reached maximum volume either decreased or increased with the heating rate, depending on the feed composition. A change in maximum foam temperature from the feed volume expansion test indicates a similar change of the cold‐cap bottom temperature, which influences the heat flow to the cold cap, and thus the rate of melting.

Název v anglickém jazyce

Heat transfer from glass melt to cold cap: Effect of heating rate

Popis výsledku anglicky

Conversion of feed to glass occurs in the cold cap that floats on the melt pool in a nuclear waste glass melter. The conversion rate (the melting rate or the glass production rate) is controlled by the heat flux delivered to the cold cap from the molten glass. In an attempt to analyze the intricate relationship between the rate of heating, the feed foaming response, and the rate of melting, we measured the change in feed volume at different heating rates by using several melter feeds known to exhibit a wide range of melting rates under identical melter operating conditions. As expected, the maximum foam porosity increased as the heating rate increased. However, contrary to expectation, the temperature at which the foam reached maximum volume either decreased or increased with the heating rate, depending on the feed composition. A change in maximum foam temperature from the feed volume expansion test indicates a similar change of the cold‐cap bottom temperature, which influences the heat flow to the cold cap, and thus the rate of melting.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

International Journal of Applied Glass Science

ISSN

2041-1286

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

401-413

Kód UT WoS článku

000470786300013

EID výsledku v databázi Scopus

2-s2.0-85062338151