Assessment of heat extraction through slab caster mould

Paul, Anand J.; Pradhan, N.; Ray, Asim K.; Bhor, P. K.; Mazumdar, S.; Korath, Jose Martin

doi:10.1034/j.1600-0692.2000.d01-16.x

Cited by 10 publications

(4 citation statements)

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“…The computation of the eigenvalues and corresponding eigen functions results is a quite lengthy and difficult matter. A. Paul et al 3 studied the local heat transfer (Flux) in a slab caster, to determine the heat flux and temperature distribution through the mold wall. They developed a mathematical model for a mold by utilizing an experimental rig with thermocouples.…”

Section: Introductionmentioning

confidence: 99%

One‐dimensional transient heat conduction in a bilayer finite slab: A case study in the printing process

Borah¹,

Baruah²

2017

Heat Trans. Asian Res.

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In this work, a typical case of heat distribution is examined during a paper printing process, based on one‐dimensional transient heat conduction in two‐layer finite slabs with an insulated free surface, and a constant temperature free surface. Analytical solutions were obtained in non‐dimensional form. Various examples of applying these solutions are presented. The accuracy of the solutions, with respect to time, is analyzed considering the eigenvalues of their infinite solutions. It is observed that the larger the number of eigenvalues in consideration, the better the accuracy of the solutions. The model related to a two‐layer slab describes the simplified case in which all heat transfer occurs only by conduction. The solutions obtained are finally compared with the solutions for heat conduction in two semi‐infinite solids. The comparison between the two solutions shows that results are in good agreement only during short time scales. The heat distribution study is expected to be helpful in knowing the effectiveness of various mediums to be used as the reciever during the printing process; however, there is scope for development of more robust models.

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Section: Introductionmentioning

confidence: 99%

One‐dimensional transient heat conduction in a bilayer finite slab: A case study in the printing process

Borah¹,

Baruah²

2017

Heat Trans. Asian Res.

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“…In the mould, the superficial heat flux of the steel can be calculated relating the residence time inside the mould and the average heat flux. [3][4][5][6][7][8] An alternative approach that has been largely applied [9][10][11][12] is to use the inverse problem of heat conduction through the mould wall. In the secondary cooling zone, the superficial heat flux of steel involves different mechanisms, such as radiation in the dry zones, conduction in the regions in contact with the rolls and convection owing to the water sprays.…”

Section: Introductionmentioning

confidence: 99%

Improvement in secondary cooling of continuous casting of round billets through analysis of heat flux distribution

Assuncao

Tavares

Oliveira

2014

Ironmaking & Steelmaking

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A mathematical model of heat transfer and solidification for a continuous casting of round billets was developed. The water flux density of the secondary cooling zone was experimentally measured, using an apparatus in industrial scale with two types of nozzles, flat jet and full cone jet. The profiles of water distribution were applied on the mathematical model. The results showed that the water distribution is not uniform in both longitudinal and angular directions owing to the unevenness of the spray and to the curvature effect of the round billet. This non-uniformity causes important variation of the heat transfer coefficients and superficial temperature of the billet, especially in the first cooling zones, where the temperature is higher. The mathematical model was used to simulate a change of nozzle type in the first cooling zone. The results showed that the heat flux and superficial temperature variations were reduced with a full cone jet nozzle in comparison with the flat jet nozzles.

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confidence: 99%

Simulation and Characterization on Heat Transfer through Mould Slag Film

et al. 2012

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As one of the most important factors on product surface quality and casting practice, the heat transfer across the interfacial layers in continuous cast mould is greatly affected by the formation of mould slag film between the solidifying shell and the mould. So far, many methods have been presented to measure the heat transfer of mould slag; however, few of them could be easily applied to represent the real heat transfer across the mould interfacial gap. An apparatus used for mould slag film heat transfer measurement is presented in the current paper. The apparatus is used to simulate the heat transfer across the mould slag film. According to the measurement, four parameters are selected as a standard to characterize the heat transfer of the mould slag. The parameters include maximum heat flux (liquid slag), characteristic time, heat flux at meniscus, and average heat flux. Two measurements on different mould slags verify that: 1) the standard could represent the difference in heat transfer between medium carbon steel and low carbon steel mould slag; 2) the average heat flux is a key factor to indicate the overall heat transfer in casting mould; 3) the formed solid slag film in experiment is identical to the real mould, including the morphology, composition, grain size, and thickness. The experiment simulation offers an effective approach to study the formation and evaluation of slag film inside the mould.

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Assessment of heat extraction through slab caster mould

Cited by 10 publications

References 0 publications

One‐dimensional transient heat conduction in a bilayer finite slab: A case study in the printing process

One‐dimensional transient heat conduction in a bilayer finite slab: A case study in the printing process

Improvement in secondary cooling of continuous casting of round billets through analysis of heat flux distribution

Simulation and Characterization on Heat Transfer through Mould Slag Film

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