Experimental Characterization of Energy Output from a Model Geothermal Pile
Bibliographic record
Abstract
Geothermal piles are increasingly used around the world as an innovative and sustainable method of harvesting shallow geothermal energy. Energy harvested through this technique can be used to partially meet the heating and cooling energy demand for residential and commercial buildings. Despite the growing recognition of the benefits of geothermal piles, the complex heat exchange through these piles is not yet fully understood. This paper describes a series of thermal tests performed on an instrumented model heat exchanger pile installed in a standard F50 Ottawa sand bed. Temperature measurements were obtained at different locations within the soil, on the pile surface, on the tank boundary, and at the inlet and outlet points of the circulation tube. Recorded temperature data are used to obtain time-dependent heat exchange efficiency of the model pile. The thermal tests presented in this paper provide valuable data on the nature of heat exchange through geothermal piles and on the thermal response of soil in the vicinity of a heat exchanger pile.
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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 | 0.001 |
| 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".