Earth-air Heat Exchangers For Passive Air Conditioning: Case Study \nBurkina Faso
Bibliographic record
Abstract
An earth-air heat exchanger (EAHX), also known as an earth tube heat exchanger \nor Canadian well, is a system for cooling and heating buildings using the ground as a heat \nsink/source. This study examines the ground temperature gradient and the performance of \nan EAHX performance in Burkina Faso. Ground temperature measurements were made at \ndepths of 0.5 m, 1.0 m and 1.5 m. At the hottest time of the day, 15:00, the average outside \ntemperature was 39.0°C, but the average temperature 1.5 m underground was 30.4°C. A \nclear phase shift was observed between the maximum outside temperature and the \nmaximum ground temperature: the time of the day when the outside temperature is highest \ncorresponds to the time when the underground temperature was lowest. The EAHX was 25 m \nlong, 1.5 m underground and used a 95 m3/hr ventilator. It was able to cool the air drawn in \nfrom the outside by 7.6°C.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.000 |
| Scholarly communication | 0.000 | 0.002 |
| Open science | 0.001 | 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".