Numerical modeling of sootblower jet flow between superheater platens in a kraft recovery boiler
Why this work is in the frame
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Bibliographic record
Abstract
Sootblowers are used to control fireside deposit accumulation in kraft recovery boilers.A sootblower produces high-velocity steam jets which impinge on deposits and remove them from heat transfer tube surfaces.How the jet interacts with deposits and tubes is not well understood.Since direct rneasurement of sootblower jet flow characteristics in a kraft recovery boiler is difficult, a numerical model has been developed to simulate a sootblower jet as it propagates between two platens and interacts with deposits.The numerical model was first used to simulate a scaled laboratory air jet exerted on a deposit.The numerical results were validated by the experimental data.The model was subsequently used to simulate a full-scale sootblower jet under recovery boiler conditions.It shows that the deposit removal efficiency of a sootblower is a strong function of the distance between the noule and deposit.pressure, and deposit height.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it