Detail publikace

Analysis of Directly Measured Heat Transfer Coefficients During Special Experiments to Provide Better Understanding of Secondary Cooling During Continuous Casting Process

Originální název

Analysis of Directly Measured Heat Transfer Coefficients During Special Experiments to Provide Better Understanding of Secondary Cooling During Continuous Casting Process

Anglický název

Analysis of Directly Measured Heat Transfer Coefficients During Special Experiments to Provide Better Understanding of Secondary Cooling During Continuous Casting Process

Jazyk

en

Originální abstrakt

The cooling intensity of spray nozzles is a very important parameter in the secondary cooling zone of a continuous caster since it has strong impact on cast slab quality and operation. This parameter is characterized by the heat transfer coefficient (HTC), which is one of the boundary conditions for the heat conduction problem. At the Heat Transfer and Fluid Flow Laboratory of Brno University the cooling intensity of nozzles is measured on an experimental apparatus [1], [2]. Temperatures in a test plate are obtained from the measurements and surface temperatures as well as heat transfer coefficients are computed from these temperatures by an inverse heat conduction problem. The standard procedure for measuring the HTC is to position the spray nozzles below a preheated plate. In most continuous casters this configuration only exists in the run-out portion of the machine. The sprays in continuous casters are also spraying from above on to the cast slab and can spray onto the surface of the slab when it is in a vertical position and the sprays are perpendicular to slab surface in almost all cases. A series of experiments were conducted to determine the effect of slab surface orientation on the measured heat transfer coefficient.

Anglický abstrakt

The cooling intensity of spray nozzles is a very important parameter in the secondary cooling zone of a continuous caster since it has strong impact on cast slab quality and operation. This parameter is characterized by the heat transfer coefficient (HTC), which is one of the boundary conditions for the heat conduction problem. At the Heat Transfer and Fluid Flow Laboratory of Brno University the cooling intensity of nozzles is measured on an experimental apparatus [1], [2]. Temperatures in a test plate are obtained from the measurements and surface temperatures as well as heat transfer coefficients are computed from these temperatures by an inverse heat conduction problem. The standard procedure for measuring the HTC is to position the spray nozzles below a preheated plate. In most continuous casters this configuration only exists in the run-out portion of the machine. The sprays in continuous casters are also spraying from above on to the cast slab and can spray onto the surface of the slab when it is in a vertical position and the sprays are perpendicular to slab surface in almost all cases. A series of experiments were conducted to determine the effect of slab surface orientation on the measured heat transfer coefficient.

BibTex


@inproceedings{BUT100028,
  author="Jaroslav {Horský} and Jana {Ondroušková} and Rudolf {Moravec} and Kenneth {Blazek} and Hongbin {Yin}",
  title="Analysis of Directly Measured Heat Transfer Coefficients During Special Experiments to Provide Better Understanding of Secondary Cooling During Continuous Casting Process",
  annote="The cooling intensity of spray nozzles is a very important parameter in the secondary cooling zone of a continuous caster
since it has strong impact on cast slab quality and operation. This parameter is characterized by the heat transfer coefficient
(HTC), which is one of the boundary conditions for the heat conduction problem. At the Heat Transfer and Fluid Flow
Laboratory of Brno University the cooling intensity of nozzles is measured on an experimental apparatus [1], [2].
Temperatures in a test plate are obtained from the measurements and surface temperatures as well as heat transfer coefficients
are computed from these temperatures by an inverse heat conduction problem.
The standard procedure for measuring the HTC is to position the spray nozzles below a preheated plate. In most continuous
casters this configuration only exists in the run-out portion of the machine. The sprays in continuous casters are also
spraying from above on to the cast slab and can spray onto the surface of the slab when it is in a vertical position and the
sprays are perpendicular to slab surface in almost all cases. A series of experiments were conducted to determine the effect of
slab surface orientation on the measured heat transfer coefficient.",
  address="AISTech 2013",
  booktitle="2013 AISTech Conference Proceedings",
  chapter="100028",
  howpublished="electronic, physical medium",
  institution="AISTech 2013",
  year="2013",
  month="may",
  pages="1401--1409",
  publisher="AISTech 2013",
  type="conference paper"
}