Effects of Pore Size Variations on Regenerative Wheel Performance
Why this work is in the frame
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Bibliographic record
Abstract
Manufacturing tolerances usually cause the air flow channel pore sizes to have a random variation in the matrices of regenerative wheels. The effects of random pore size distribution on pressure drop across a regenerative energy wheel transferring heat and moisture and effectiveness are investigated using analytical methods. Compared to an identical wheel with no pore size variation, simple algebraic expressions for pressure drop ratio, Δp/Δp0, and effectiveness ratio, ε/ε0, are developed for a Gaussian distribution of flow channel hydraulic diameters. Graphical results are presented showing that large random variations in flow channel pore size decrease the pressure drop across a wheel and the effectiveness (sensible, latent, and total) significantly for a regenerative wheel. Optical and micrometer measurements of four typical regenerative wheels showed a random variation in flow channel hydraulic diameters. These data imply significant decreases in Δp/Δp0 and ε/ε0 for each wheel.
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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) | 0.000 | 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 it