Analyzing the Performance of a Heat Pump Water Heater When Coupled with a Heat Recovery Ventilator for Heating Applications in Canada
Bibliographic record
Abstract
The objective of this thesis is to determine the suitability of an air source heat pump water heater (HPWH) for Canadian climates. The performance of a commercially available HPWH was evaluated at a series of air temperature and humidity set-points representing outdoor conditions in Canadian climates. The resulting cost of energy in each climate was compared to the cost when using the unit with basement air and when using an electric water heater. A computer model was developed to simulate the annual performance of the unit when installed in a house and coupled with a heat recovery ventilator (HRV). The effects of the HRV on the performance of the HPWH were found to be negligible when the heating and cooling loads were taken into consideration. It was found that HPWHs have a lower cost of energy than electric water heaters in regions with time-of-use utility rates.
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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 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 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".