| Title | Characterising Ground Thermal Properties in Ireland – an approach to improving ground source collector design |
|---|---|
| Authors | Pasquali, R; Murray, S; Long, M; McAteer, J |
| Year | 2016 |
| Conference | European Geothermal Congress |
| Keywords | thermal conductivity, ground loop sizing tables, Ireland, collector, heat extraction rates |
| Abstract | The Irish Ground Thermal Properties (IGTP) project aims to characterise the geothermal properties of Irish ground conditions and their suitability for deployment of closed loop collectors. IGTP has developed the first comprehensive database of thermal conductivity measurements from different Irish ground conditions to facilitate design and sizing of geothermal collectors by installers and professionals. Bedrock core samples from up to 42 mapped lithological units have been tested using a divided bar apparatus. Thermal response testing results completed as part of this project have also been made available with a view to understanding potential heat extraction rates from vertical closed loop collectors. The lab and field test results have also been considered during the monitoring of operating geothermal systems with a view to understanding their performance. The data obtained through laboratory testing and thermal response tests, has informed the compilation of ground source collector suitability maps and has been used to quantify potential heat extraction rates and develop ground loop sizing tables for small scale residential closed loop collectors. The results of the projects have facilitated the dissemination of the potential of shallow geothermal resources in Ireland and have informed professionals involved in system design and installation. |