Testing of Polymeric Hollow Fibre Heat Exchanger with Crossed Hollow Fibres
Bibliographic record
Abstract
The results of the development and experimental investigation of a polymeric hollow fibre heat exchanger are presented. A heat exchanger of a shell-and-tube type with an outer diameter of 80mm and a length of 350mm containing 2200 206mm-long polyamide hollow fibres with an outer diameter of 0.8mm cross-wound at an angle to the axis of the heat exchanger. Cross-winding was realized with the help of the modified winding system X-Winder. Cold water with a temperature of 13C and a constant flow rate of 2160l/h was fed through the hollow fibres. The dependences of heat transfer characteristics on the shell fluid temperature and fluid flow rate are presented. The device was able to transfer 38kW at a shell water temperature of 70C and a shell fluid flow rate of 800l/h. In these conditions, the maximum overall heat transfer coefficient reaches 1950W/mK.
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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".