Detail publikace
CONTROL OF SLAB SOLIDIFICATION IN CONTINUOUS CASTING PROCESS VIA OPTIMIZATION AND NUMERICAL MODELS
MAUDER, T. ŠTĚTINA, J. RAUDENSKÝ, M.
Český název
CONTROL OF SLAB SOLIDIFICATION IN CONTINUOUS CASTING PROCESS VIA OPTIMIZATION AND NUMERICAL MODELS
Anglický název
CONTROL OF SLAB SOLIDIFICATION IN CONTINUOUS CASTING PROCESS VIA OPTIMIZATION AND NUMERICAL MODELS
Typ
různé
Jazyk
en
Originální abstrakt
Continuous casting (CC) of steel is the leading technology providing almost one hundred percent of world steel production. The molten steel is cooled down into an intermediate shape called slabs, blooms and billets. The solidifying slab is subjected to variable thermal and stress conditions which can cause many serious defects in final structure such as surface or internal cracks. This paper presents an original regulation algorithm used to obtain time-dependent casting parameters for temperature stabilization of the CC process. The essential part of the algorithm is the 3D numerical model of temperature field which simulates heat and mass transfer, solidification of the strand, grow of the solid shell etc. The regulation part of the algorithm is based on the fuzzy logic approach which combines close-loop and open-loop control. The whole regulation concept is very general and can be applied to arbitrary grade of steel and caster geometry.
Český abstrakt
Continuous casting (CC) of steel is the leading technology providing almost one hundred percent of world steel production. The molten steel is cooled down into an intermediate shape called slabs, blooms and billets. The solidifying slab is subjected to variable thermal and stress conditions which can cause many serious defects in final structure such as surface or internal cracks. This paper presents an original regulation algorithm used to obtain time-dependent casting parameters for temperature stabilization of the CC process. The essential part of the algorithm is the 3D numerical model of temperature field which simulates heat and mass transfer, solidification of the strand, grow of the solid shell etc. The regulation part of the algorithm is based on the fuzzy logic approach which combines close-loop and open-loop control. The whole regulation concept is very general and can be applied to arbitrary grade of steel and caster geometry.
Anglický abstrakt
Continuous casting (CC) of steel is the leading technology providing almost one hundred percent of world steel production. The molten steel is cooled down into an intermediate shape called slabs, blooms and billets. The solidifying slab is subjected to variable thermal and stress conditions which can cause many serious defects in final structure such as surface or internal cracks. This paper presents an original regulation algorithm used to obtain time-dependent casting parameters for temperature stabilization of the CC process. The essential part of the algorithm is the 3D numerical model of temperature field which simulates heat and mass transfer, solidification of the strand, grow of the solid shell etc. The regulation part of the algorithm is based on the fuzzy logic approach which combines close-loop and open-loop control. The whole regulation concept is very general and can be applied to arbitrary grade of steel and caster geometry.
Klíčová slova česky
Heuristic optimization, Fuzzy regulation, Temperature field, Continuous casting, Secondary cooling
Klíčová slova anglicky
Heuristic optimization, Fuzzy regulation, Temperature field, Continuous casting, Secondary cooling
Vydáno
01.11.2013
Nakladatel
Tokyo University of Science
Místo
Tokyo
Kniha
The 24th International Symposium on Transport Phenomena Conference proceedings
Strany od–do
58–63
Počet stran
6