Study of solids flow in the dipleg of the primary cyclone of a 0.6 m diameter fluidized bed of a large group A powder
Bibliographic record
Abstract
Abstract Internal cyclones use diplegs to recycle solids to the dense fluidized bed in most industrial fluidized beds. Poor dipleg operation can greatly increase particle losses from cyclones. Experiments with a 0.6 m diameter column and large group A particles showed that at low gas velocities in the fluidized bed, gas slugs rose through the dipleg, causing the emission of solids pulses; this issue was resolved by adding an elbow termination at the bottom of the dipleg. At high gas velocities, the dipleg backed up. A new model showed that dipleg backup resulted from large pressure fluctuations in the fluidized bed near the bottom of the dipleg. Momentarily, the local bed pressure became higher than the pressure in the dipleg, and fluidized solids flowed from the bed into the dipleg. Consequently, the dipleg was modified: the dipleg diameter and height were increased, and aeration and an elbow termination were added to the dipleg.
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 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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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".