Prediction of bed fluctuation and expansion ratios for homogeneous ternary mixtures of spherical glass bead particles in a three‐phase fluidised bed
Bibliographic record
Abstract
Abstract The prediction of the fluctuation and expansion ratios in three‐phase fluidised beds of homogeneous particles is of prime importance in designing the equipments and evaluating the efficiency of a number of physical and/or chemical operations of industrial importance. A clear knowledge of the hydrodynamic behaviour in a three‐phase fluidised bed is a prerequisite for this purpose. To explore this, a series of experiments have been carried out for homogeneous well‐mixed ternary mixtures of three different sizes of glass beads of varying compositions in a three‐phase fluidised bed. The hydrodynamic characteristics determined include the bed fluctuation and expansion ratios. The dependence of these quantities on the average particle diameter, superficial gas velocity and initial static bed height has been discussed. Based on dimensional and statistical analyses, correlations have been developed with the system parameters, viz., average particle diameter, initial static bed height and superficial velocity of the fluidising medium. Experimental values of bed fluctuation and expansion ratios have been found to agree well with those calculated from developed correlations.
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How this classification was reachedexpand
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) | 0.000 | 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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".