Performance Evaluation of an Air Source Heat Pump Coupled with a Building-Integrated Photovoltaic/Thermal (BIPV/T) System under Cold Climatic Conditions
Bibliographic record
Abstract
A theoretical investigation of the performance of a two stage variable capacity air source heat pump (TS VC ASHP) coupled with a building-integrated photovoltaic/thermal (BIPV/T) system (integrated into the wall) is presented in this paper. Air was circulated behind the photovoltaic arrays to recover the thermal energy. TRNSYS was used to evaluate the performance of the TS VC ASHP coupled with the BIPV/T. The thermal performance of the TS VC ASHP was evaluated for two scenarios when the TS VC ASHP was running in heating mode. The two scenarios are: (A) directly feeding ambient air to the TS VC ASHP, and (B) coupling the TS VC ASHP to a wall integrated BIPV/T. The coefficient of performance (COP) of the TS VC ASHP was evaluated and compared for these two separate scenarios. Results suggest that the COP of the TS VC ASHP can be improved for the months of February through April by coupling the TS VC ASHP to a wall integrated BIPV/T system.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 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) | 0.002 | 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".