Development of a simulation tool to assess heat pump integration in Canadian homes
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Notice bibliographique
Résumé
Air-to-air heat pumps (ASHPs) can play an important role in reducing the greenhouse gas (GHG) emissions of Canadian homes, but their performance is highly dependent on sizing, integration, ASHP type, and building location and construction. Currently, the Heating Seasonal Performance Factor (HSPF2) is used to provide homeowners with an estimate of seasonal performance, but neglects many of the key factors above. More accurate estimations of ASHP performance for a given project are needed to provide homeowners with an improved understanding of performance potential for their unique context.Simulation tools can more accurately assess ASHP performance in a specific installation, taking into account variations in climate, building characteristics, and system configurations. However, many commonly used building simulation tools (e.g., TRNSYS, EnergyPlus) require significant effort and expertise to operate. This complexity can be a barrier, including homeowners, contractors, and even some engineers, resulting in a non-optimal heat pump sizing and selection. While simpler tools exist (RETScreen, HOT2000), they still require minimum modelling knowledge. Additionally, these tools often use monthly average data to estimate the performance of ASHP, which tends to poorly capture the impact of sizing and part load performance. To drive further system adoption, new tools are needed that can accurately estimate ASHP performance while remaining accessible to users with limited technical knowledge.This paper presents the development of a novel simulation tool designed to simplify the selection and performance analysis of ASHPs in single-family Canadian homes. The tool leverages the capabilities of TRNSYS and enhances usability through an intuitive interface. It employs Type 660 models, which use a resistance-capacitance approach to building modelling, to provide a more computationally efficient approach vs. detailed TRNSYS building models (e.g, Type 56). To ensure accuracy, these simplified models were validated against detailed Type 56 models by comparing their energy consumption and zone temperatures at hourly and annual scales. Using Type 660 allows for faster simulation while also allowing users to easily modify the building geometry and envelope. This provides a basis to simulate a wide range of homes with minimal adjustments to key inputs.The tool outputs detailed results on annual building energy consumption and evaluates various heat pump capacities, providing information on the savings potential of properly sized ASHP. Several case studies are presented to compare the performance of the developed tool with detailed TRNSYS simulations, and showcase its potential as a decision support for Canadian homeowners and interested stakeholders.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,001 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,002 | 0,002 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle