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Record W4242839514 · doi:10.1504/ijmr.2017.086167

A ladle heat loss model for daily production

2017· article· en· W4242839514 on OpenAlexaff
Keyvan Rahmani, Vincent Thomson

Bibliographic record

VenueInternational Journal of Manufacturing Research · 2017
Typearticle
Languageen
FieldEngineering
TopicMetallurgical Processes and Thermodynamics
Canadian institutionsMcGill University
Fundersnot available
KeywordsLadleTundishCasterLiquid steelTRACRule of thumbEngineeringContinuous castingMechanical engineeringMaterials scienceMetallurgyNuclear engineeringComputer science

Abstract

fetched live from OpenAlex

Production events and uncertainties impact ladle processing times, which in turn affect the steel temperature at the tundish. Deviations from the desired steel temperature in the tundish can result in production stoppage either due to premature solidification or due to liquid steel leakage at the caster. These stoppages are extremely costly and must be avoided by any means. Using a good method for estimation of heat losses that is linked to production parameters is very useful to reduce the risk of incorrect steel temperature. Most of the literature to date on computing the ladle heat loss is concerned with analytical and numerical solutions that are interesting academically or with regards to ladle design. This paper however is concerned with building a gross heat loss estimation model for a ladle in daily operation. It studies the important parameters that affect final steel temperature and uses actual production data to validate the analyses and conclusions. A rule of thumb for the cooling rate of steel in a ladle is developed with an average value of 0.55 to 1.40°C/min. [Received 25 December 2015; Accepted 22 February 2017]

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.011
Threshold uncertainty score0.024

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0020.001
Research integrity0.0020.001
Insufficient payload (model declined to judge)0.0070.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.085
GPT teacher head0.378
Teacher spread0.293 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations1
Published2017
Admission routes1
Has abstractyes

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