Värme från gruvvatten : En undersökning av olika metoder för att kunna hämta värme ur vattnet som pumpas upp ur gruvorna
Notice bibliographique
Résumé
Boliden Mineral AB - Boliden Mines is a company that carries out continuous improvement work in the energy and environmental area. During this degree project, the possibility of making use of waste heat from the mine water that is pumped out of the Renström mine was evaluated. The possibility of making use of the heat from the mine water is interesting as the water that is pumped up maintains a stable temperature between +8 degrees to +20 degrees. This provides a suitable heat source for heat pumps by extracting the heat using heat exchangers or collectors. The purpose of this thesis has been to investigate which type of solution between collectors and heat exchangers is technically and economically most advantageous. The cases reviewed are to either invest in components for the existing heat pump, which is located next to the collection basin, in the old treatment plant, or to invest in a new facility in connection with the fire dam. Reviews to determine alternative collectors and heat exchangers were carried out on a theoretical basis. The review was based on the fact that collectors and heat exchangers must be durable, easy to disassemble and easy to maintain. Through economic analyzes and discussion with various companies and suppliers, three different collectors and three different heat exchangers respectively were determined as possible solutions. Conclusions were extracted from these components for the various cases. The conclusion that can be drawn for the existing case of the existing heat pump located adjacent to the collection pond, the old treatment plant, is that an installation of two Geek kooil collectors is the most economically beneficial investment. The company also chose to invest in this option.For the case of a new facility in connection with the fire dam, the result is presented depending on the investment in the number of heat pumps, where the payback times vary between the different investment options. The payback time of the collectors and heat exchangers varies between 3 to 8 years depending on the number of heat pumps or collectors.Conclusion given from both the existing case and the case of a new plant gave that from the point of view of the collectors, the Geek kooil collector was the better option, both for the existing heat pump and for a new installation of one, two or three heat pumps. A Geek kooil collector gave an investment cost per kW between SEK 3813 and 2647/kW. For the heat exchangers, the plate heat exchanger from Alfa laval was determined to be the better option for a new installation of both one, two or three heat pumps. The plate heat exchanger from Alfa laval gave an investment per kW of SEK 360/kW, which is lower than the comparative alternatives.
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.
Comment cette classification a été obtenuedéplier
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 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,003 | 0,004 |
| Méta-épidémiologie (sens large) | 0,003 | 0,002 |
| Bibliométrie | 0,012 | 0,009 |
| Études des sciences et des technologies | 0,002 | 0,002 |
| Communication savante | 0,000 | 0,002 |
| Science ouverte | 0,006 | 0,007 |
| Intégrité de la recherche | 0,003 | 0,003 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,012 | 0,039 |
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 découleClassification
machine, non validéePrédiction automatique; les deux têtes enseignantes s’accordent sur ce qui est montré ici.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».