Comparison of Degassing Efficiency on a Foundry Degassing Unit Using Different Rotor Types

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F75081431%3A_____%2F24%3A00002684" target="_blank" >RIV/75081431:_____/24:00002684 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23210/24:43972717

Výsledek na webu

<a href="https://www.mdpi.com/2076-3417/14/5/2216" target="_blank" >https://www.mdpi.com/2076-3417/14/5/2216</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of Degassing Efficiency on a Foundry Degassing Unit Using Different Rotor Types

Popis výsledku v původním jazyce

The present paper describes a comparison of the efficiency of different types of rotors used in the refining of aluminium melt at a foundry degassing unit (FDU). Physical modelling was used to obtain data for six different rotor types under defined experimental conditions. In order to evaluate the data from the physical model, an evaluation method based on the interpolation of degassing curves was developed in such a way that the resulting characteristic can be expressed by a single parameter. Using the new methodology, the datasets were replaced by a single dimensionless parameter, a, which characterizes the rotor performance at a given gas flow rate. Based on the comparison of these performance parameters, it was possible to mutually compare the rotor efficiency depending on the selected conditions. The comparison is also demonstrated on the expected degassing time to a certain required concentration. Based on the physical model results, the study found that rotor D had the highest degassing efficiency, followed by rotors F and A. Rotors B and E had similar efficiency at a flow rate of 17 Nl center dot min-1. However, rotor B showed better efficiency at higher inert gas flow rates (19 and 21 Nl center dot min-1), while rotor E showed better efficiency at lower flow rates (13 and 15 Nl center dot min-1).

Název v anglickém jazyce

Comparison of Degassing Efficiency on a Foundry Degassing Unit Using Different Rotor Types

Popis výsledku anglicky

The present paper describes a comparison of the efficiency of different types of rotors used in the refining of aluminium melt at a foundry degassing unit (FDU). Physical modelling was used to obtain data for six different rotor types under defined experimental conditions. In order to evaluate the data from the physical model, an evaluation method based on the interpolation of degassing curves was developed in such a way that the resulting characteristic can be expressed by a single parameter. Using the new methodology, the datasets were replaced by a single dimensionless parameter, a, which characterizes the rotor performance at a given gas flow rate. Based on the comparison of these performance parameters, it was possible to mutually compare the rotor efficiency depending on the selected conditions. The comparison is also demonstrated on the expected degassing time to a certain required concentration. Based on the physical model results, the study found that rotor D had the highest degassing efficiency, followed by rotors F and A. Rotors B and E had similar efficiency at a flow rate of 17 Nl center dot min-1. However, rotor B showed better efficiency at higher inert gas flow rates (19 and 21 Nl center dot min-1), while rotor E showed better efficiency at lower flow rates (13 and 15 Nl center dot min-1).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/TH04010449" target="_blank" >TH04010449: Výzkum a vývoj rafinačních technologií pro zvýšení kvality hliníkových slitin určených pro vysoce náročné odlitky</a><br>

Návaznosti

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

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Applied Sciences

ISSN

2076-3417

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

1-14

Kód UT WoS článku

001182535000001

EID výsledku v databázi Scopus

2-s2.0-85192468403