On the use of an underground storage tank for disposing bleed water in standing column well systems
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
A standing column well is a groundwater-coupled heat pump system used for household and commercial space heating and cooling. During off-peak periods, groundwater is pumped from the well to a heat exchanger before being returned to the same well. During high-demand periods, a fraction of the outlet water is returned to the aquifer using an injection well. This operation strategy increases the thermal output by boosting advective heat transfer due to groundwater flow towards the borehole. However, using an injection well to return the bleed water to the aquifer may reduce the injection well’s uptake capability in the long term. To limit the risks associated with injection wells, this study investigates an alternative solution employing a perforated underground septic tank for bleed water disposal. Instead of being directed to an injection well, bleed water is temporarily stored in an underground storage tank and drained to the ground through a perforated area. The applicability of this solution is illustrated by a finite element simulation representing a 20 m 3 storage tank combined with a standing column well working over a 30-day heating period. The finite element model is constructed to integrate the geological and climatic conditions observed at an experimental site located in Varennes, Canada, but also the experimental measurements made over a 30-day field campaign. The drainage process is modeled by combining Navier–Stokes equations with Richards equation to model unsaturated and saturated porous medium flow. The performance of the studied solution is assessed by monitoring the hydraulic head of the water in the storage tank. Despite the low permeability of the studied site, the numerical findings proved that the infiltration through the perforated area of the tank was sufficient for storing and draining a total volume of 121.5 m 3 of bleed water with an average drainage ratio of 0.85. Additionally, the drainage streamlines proved that water returns to the lower rock unit. These results demonstrate that integrating a storage tank eliminates the necessity of an injection well for the simulated period without overflow risk. Despite the fact that viscosity changes influence drainage procedures, the thickness of the unsaturated was found to be the most essential performance parameter for the storage tank. • A perforated underground storage tank provides a new bleed solution for standing column wells. • Infiltration through the unsaturated zone is a potential re-injection method of bleed flow rate. • The thickness of the unsaturated zone has the greatest influence on the drainage performance of the storage tank.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
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 | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| 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