Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/20.500.14279/15748
Τίτλος: | Economics of a sustainable geothermal system for air-conditioning a typical house in moderate climates | Συγγραφείς: | Florides, Georgios A. Aresti, Lazaros Messaritis, Vassilios Lazari, Lazaros Christodoulides, Paul |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Λέξεις-κλειδιά: | Air-to-Air Heat Pumps;ground heat exchangers | Ημερομηνία Έκδοσης: | 2019 | Πηγή: | SIAM-GS 2019 Conference on Mathematical & Computational Issues in the Geosciences | Conference: | Conference on Mathematical & Computational Issues in the Geosciences | Περίληψη: | Air-to-Air Heat Pumps (HPs), used for air-conditioning buildings are very efficient as they use the atmosphere as heat source/sink to absorb/reject heat. Yet, in a town in summertime for example, heat is collectively rejected to the surrounding environment, increasing its temperature in the absence of breeze. A sustainable way of utilizing HPs is the use of the deeper ground layers around a building to absorb/reject heat with ground heat exchangers (GHEs). Such systems, shallow geothermal energy systems (SGES), exhibit increased HP efficiency, minimizing electricity expenses, as in summer the ground has lower temperature than the air in the environment (vice-versa in winter). The evolution of SGES has led to competition with Air-to-Air HPs and the manufacturing of custom-designed inverter technology ducted series HPs. This paper studies the SGES case of a typical house thermal load in moderate climate, through an experimentally validated CFD model based on the convection-diffusion equation and transient time analysis. Water inlet temperatures are examined for summer/winter. The GHE length is optimized and the power rejected to the ground is discussed with regard to system efficiency, affected by the fluid temperature entering the HP. A lower entering fluid temperature increases the system cost as the GHE will need more boreholes for temperature reduction. A cost analysis and a comparison of total energy savings is also done. | URI: | https://hdl.handle.net/20.500.14279/15748 | Type: | Conference Papers | Affiliation: | Cyprus University of Technology | Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
Αρχεία σε αυτό το τεκμήριο:
Αρχείο | Περιγραφή | Μέγεθος | Μορφότυπος | |
---|---|---|---|---|
SIAM-GS2019-gf.pdf | 11.82 kB | Adobe PDF | Δείτε/ Ανοίξτε |
CORE Recommender
Page view(s)
361
Last Week
2
2
Last month
28
28
checked on 14 Μαρ 2025
Download(s)
73
checked on 14 Μαρ 2025
Google ScholarTM
Check
Όλα τα τεκμήρια του δικτυακού τόπου προστατεύονται από πνευματικά δικαιώματα