Multipin EHD dryer: Effect of electrode geometry on charge and mass transfer
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Bibliographic record
Abstract
Electrohydrodynamic (EHD) drying is considered as energy-efficient nonthermal technology suitable for dewatering of heat-sensitive materials. This technology relies on the ionic discharge from the vertical pin or fine horizontal wire, impinging wet material deposited on the plate electrode of opposite polarity. The critical issue for the scaling of EHD dryer is the geometry of a multipin/wire discharge and collecting electrodes, in particular the spacing between pins/wires and the gap between discharge electrode and material surface. This paper presents the results of experimental study and mathematical simulation of multipin discharge current to maximize total charge and mass transfer at the material surface. A mathematical model for discharge current based on Poisson’s and Warburg fundamental equations was developed and validated in experiments with multipin electrodes of different spacing (1, 2, 3, 4, and 6 cm) and gaps from 2 to 4 cm. It was demonstrated that linear relationship between total electric current and drying rate is valid for any spacing and any gap with the range from 2 to 4 cm. It was experimentally documented that the judiciously selected geometry of the multipin discharge electrode could mitigate adverse effect of interference between neighboring ionic jets and bring the concept of EHD dryer to industrial practice.
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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