Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/15749
Title: | Performance and cost analysis of single and double U-tube ground heat exchangers |
Authors: | Christodoulides, Paul Zerun, Mateusz Aresti, Lazaros Kalogirou, Soteris A. |
Major Field of Science: | Engineering and Technology |
Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering |
Keywords: | Vertical U-tube ground;heat exchangers |
Issue Date: | 2019 |
Source: | SIAM-GS 2019 Conference on Mathematical & Computational Issues in the Geosciences |
Conference: | Conference on Mathematical & Computational Issues in the Geosciences |
Abstract: | Vertical U-tube ground (or borehole) heat exchangers (GHEs) are widely used as shallow geothermal energy systems to achieve sufficient heat exchange capacity under a confined surface area. This is possible because the temperature below a certain depth remains constant over the year. The presence of more than one U-tubes in the GHE in a single borehole may increase the efficiency of the system. It is hence of interest to study the performance of such systems in relation to their manufacturing/installation costs. The scope of this study is to compare the energy behavior of a single U-tube GHE with a double one. The performances of two such systems, installed under similar ground characteristics, are studied via a Building Management System for a certain time period. The energy dissipated in the ground is obtained by measuring/considering mass, specific heat capacity and temperature difference in the system. Then, a CFD model based on the convection-diffusion equation and transient time analysis is validated through the installed systems. The numerical model allows for parametric analyses and comparisons of the two systems, leading to a cost analysis. |
URI: | https://hdl.handle.net/20.500.14279/15749 |
Type: | Conference Papers |
Affiliation : | Cyprus University of Technology |
Publication Type: | Peer Reviewed |
Appears in Collections: | Δημοσιεύσεις σε συνέδρια /Conference papers or poster or presentation |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
SIAM-GS2019-pc.pdf | Abstract | 11.28 kB | Adobe PDF | View/Open |
CORE Recommender
Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.