Simulation Analysis of Thermal Insulation Performance of PCM for Mitigating Urban Heat Island Effect
Bibliographic record
Abstract
This study aimed to analyze the Thermal Insulation Performance of the PCM Cool Roof System, which is being developed for mitigating the Urban Heat Island Effect.We compared the performance of general insulation material versus that of PCM, both applied on a standard roof model.General insulation material contained 50mm Expanded Poly Styrene, 135mm Expanded Poly Styrene, and 135mm cellulose.We found that PCM had less cooling energy consumption compared to general insulation, whereas general insulation had less heating energy consumption.The annual total energy consumption was found to be lower when using PCM.Therefore, we conclude that the PCM Cool Roof System has insulating capacity comparable to that of general insulation.And its thermal insulation performance is similar or better compared with general insulation, although thermal conductivity of PCM in solid status is generally 0.24 W/mK which almost eight times higher than general insulation.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".