BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 19b
SUMMARY:Influence of spraying parameters on local surface temperature in slab casting of defect sensitive steel grades: Physical and numerical simulation
DESCRIPTION:Secondary cooling of the strand is one of the key issues in achieving the demanded surface quality in casting defect-sensitive steel grades. Numerous laboratory setups characterize heat transfer coefficients (HTC) between the air-mist cooling sprays and the strand surface. The recently developed nozzle measuring stand (NMS) at “Montanuniversitaet Leoben” provides the measurement of water distribution, impact pressure and local heat transfer coefficients for a wide variety of spray parameters. The quantification of these parameters in the overlap region between two sprays is a unique feature. The embedment of the NMS into an in-house developed 2D-FV-solidification simulation software called m²CAST provides the direct transformation of the measurements via a neural network-based HTC database towards surface temperature control in continuous casting (CC). 
The presentation will exemplify the influence of cooling parameters on the water distribution, impact pressure and local HTC. The spraying parameters include the distance between the nozzle and strand surface, the inter-distance of nozzles, the water flow rate, and air pressure. All these parameters may have a significant impact on the spray characteristics and the local strand surface temperature. The presentation will also connect this information with considerations of strand surface quality, including defect sensitivity, microstructural parameters and internal oxidation phenomena.

CLASS:PUBLIC
DTSTART:20230614T092000
DTEND:20230614T094000
END:VEVENT
END:VCALENDAR