The effects of leakage location on building air change rate in a pressurized building
Bibliographic record
Abstract
The amount of leakage through a building’s envelope has a significant impact on its energy consumption. However, the effect that leakage location has on a pressurized building’s air change rate has not been widely explored. This paper addresses this gap in research through the use of tracer gas tests in a research facility to evaluate the sensitivity of building air change rate to envelope leakage location at various building pressures. Tracer gas tests were performed for nine experimental scenarios which consisted of varying the building pressure and envelope leakage location. During each experiment, the building energy consumption was monitored and the tracer gas decay method, outlined in ASTM Standard E741, was used to approximate the air change rate at six locations in the building. Once the experiments were completed, a two-way factorial design was conducted to statistically determine the relevance of building pressure and leakage location on the air change rate of the building. Results displayed that envelope leakage location has a statistically significant effect on a pressurized building’s air change rate.
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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 | 0.001 | 0.002 |
| 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".