Investigation of the Variation of the Surface Area of Gas Hydrates during Dissociation by Depressurization in Porous Media
Bibliographic record
Abstract
Carbon dioxide gas hydrates were formed and decomposed in a high-pressure cell equipped with a flat glass window that was packed with spherical glass beads. The experimental cell was constructed to be, for all practical purposes, a one-dimensional cell, and spherical glass beads were chosen as the porous medium becaus of their high permeability and easily defined geometry. The experiments were conducted at initial water saturations of 20, 25, 30, 35, and 42% with a pressure of 4 MPa during gas hydrate formation and 1.65 MPa during decomposition. The temperature during the experiments was maintained at 4 °C. To identify the functional form for the time-dependent gas hydrate surface area during decomposition, a sensitivity analysis was conducted with the data from one of the experiments. It was found that, in this experimental apparatus, packed with glass beads, the gas hydrate surface area was most closely approximated with a correlation that assumed the hydrate habit to be grain-coating. Subsequently, the selected correlation for the surface area for gas hydrates was used in modeling the data for the other experiments, and it was found that the modeling results agreed excellently with the experimental data.
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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".