Bubble removal and sand dissolution in an electrically heated glass melting channel with defined melt flow examined by mathematical modelling

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F17%3A00480795" target="_blank" >RIV/67985891:_____/17:00480795 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/17:43914541

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.013" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.013" target="_blank" >10.1016/j.jnoncrysol.2016.11.013</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bubble removal and sand dissolution in an electrically heated glass melting channel with defined melt flow examined by mathematical modelling

Popis výsledku v původním jazyce

The electrically heated glass melting channel as a part of the segmented melting furnace was examined by mathematical modelling. Different melt flow characters were set up by proper configurations of the heating electrodes in the channel with either level or close-to-bottom melt input. The sand particle dissolution and bubble removal of defined sizes were followed up to the achievement of the critical state. This was characterized by the termination of the less effective melting phenomenon just before the output from the channel. The utilization of the melting space, the melting performance, and the specific heat losses in the critical state were evaluated. The effect of the melt input character and melt input temperature, electrode length, and energy distribution were investigated. The results have shown that the best results were attained when the energy distribution in the channel was balanced or when it was near the balanced state. Hence, no or only weak longitudinal circulations of the melt arose in the space and the helical-like melt flow could be set. This state was achieved when the melt input temperature was equivalent or not far from the average temperature of the melt in the space. Such as state can be set up by an energy shift to the regions with lower temperature and by enhancement of the transversal melt circulations.

Název v anglickém jazyce

Bubble removal and sand dissolution in an electrically heated glass melting channel with defined melt flow examined by mathematical modelling

Popis výsledku anglicky

The electrically heated glass melting channel as a part of the segmented melting furnace was examined by mathematical modelling. Different melt flow characters were set up by proper configurations of the heating electrodes in the channel with either level or close-to-bottom melt input. The sand particle dissolution and bubble removal of defined sizes were followed up to the achievement of the critical state. This was characterized by the termination of the less effective melting phenomenon just before the output from the channel. The utilization of the melting space, the melting performance, and the specific heat losses in the critical state were evaluated. The effect of the melt input character and melt input temperature, electrode length, and energy distribution were investigated. The results have shown that the best results were attained when the energy distribution in the channel was balanced or when it was near the balanced state. Hence, no or only weak longitudinal circulations of the melt arose in the space and the helical-like melt flow could be set. This state was achieved when the melt input temperature was equivalent or not far from the average temperature of the melt in the space. Such as state can be set up by an energy shift to the regions with lower temperature and by enhancement of the transversal melt circulations.

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

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

—

Svazek periodika

456

Číslo periodika v rámci svazku

JAN 15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

101-113

Kód UT WoS článku

000390719900016

EID výsledku v databázi Scopus

2-s2.0-85003031794