Naslov
Possibility of energy efficiency improving of the melting furnace in secondary aluminium production

Autori
Lazić, Ladislav ; Lovrenić-Jugović, Martina ; Mrkobrada, Lorena ; Grubišić, Željko ; Cerinski, Damijan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings Book included on USB of 19th International Foundrymen Conference: Humans - Valuable Resource for Foundry Industry Development / Dolić, Natalija ; Zovko Brodarac, Zdenka ; Brajčinović, Sandra - Sisak : Metalurški fakultet Sveučilišta u Zagrebu, 2021, 208-215

ISBN
978-953-7082-39-0

Skup
19th International Foundrymen Conference Humans – Valuable Resource for Foundry Industry Development

Mjesto i datum
Split, Hrvatska, 16.06.2021. - 18.06.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
secondary aluminium process, rotary furnace, oxy-fuel burner, energy efficiency, combustion efficiency

Sažetak
The type of a rotary furnace is often used in secondary aluminium processes. The furnace is charged with the scrap feed, which rotates to be melted under a salt layer. The furnace drum rotation enables more effective heat transfer from the hot refractory to the charge. The rotary furnace under consideration is fired by natural gas with the built-in oxy-fuel burner. Achieved higher temperatures of combustion gases allow heat transfer intensification and shortening the melting period. This paper identifies cost- effective energy savings that can be achieved through performance improvement of combustion processes in the industrial furnaces. The operating conditions having the greatest impact on the energy efficiency in an open-flame furnace are specified and the effect of oxygen-enriched air combustion on the combustion efficiency was particularly analysed. Particular attention is paid to the effect of temperature of exhaust gasses and excess oxygen on the combustion efficiency as well as the specific fuel consumption.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija, Strojarstvo

POVEZANOST RADA