Study of Condensing Heat Transfer in Horizontal Quadrilobed Tube
Bibliographic record
Abstract
This study deals with condensing heat transfer in a quadrilobed tube. HFC-134a was used as the working fluid. The effect of the tube configuration on the heat transfer coefficient was evaluated in horizontal flow. Superheated vapor or wet vapor was supplied to the condenser, and heated in water. A straight and twisted quadrilobed tubes were used. The local heat transfer coefficient at the center in the length was evaluated from the wall temperature measured by mounted thermocouples. As the result, for low refrigerant mass flux in the straight tube, deterioration in local heat transfer coefficient under low quality condition was suppressed, because condensate might be accumulated along the center by surface tension. For the twisted tube, on the other hand, heat transfer coefficient was lower than the straight one. In this experiment, since the twist tube improved the water heat transfer, the twist tube produced higher heat transfer rate than the straight one.
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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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.004 | 0.003 |
| Meta-epidemiology (broad) | 0.004 | 0.001 |
| Bibliometrics | 0.003 | 0.003 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.004 | 0.001 |
| Research integrity | 0.002 | 0.003 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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; both teacher heads agree on what is shown here.
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".