Browsing NTNU Open by Author "Midttømme, Kirsti"
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The borehole thermal energy storage at Emmaboda, Sweden: First distributed temperature measurements
Ramstad, Randi Kalskin; Justo Alonso, Maria; Acuna, José; Andersson, Olof; Stokuca, Milan; Håkansson, Niklas; Midttømme, Kirsti; Rydell, Leif (Peer reviewed; Journal article, 2022)Xylem in Emmaboda, Sweden, has one of the first borehole thermal energy storage (BTES) sites storing excess heat and has been previously thoroughly studied and monitored. Here, the results from distributed temperature ... -
Inclusion of advection in fractures in the line source equation for analysis of thermal response tests
Kvalsvik, Karoline Husevåg; Holmberg, Henrik; Ramstad, Randi Kalskin; Midttømme, Kirsti (Peer reviewed; Journal article, 2024)Proper design of larger ground source heat pump installations, and borehole thermal energy storages (BTES) requires determination of on-site thermal properties of the ground by performing a thermal response test (TRT). The ... -
Lessons learned after one-year of use of a highly efficient neighbourhood in Norway
Alonso, Maria Justo; Line, T.; Næss, Erling; Ramstad, Randi Kalskin; Breuhaus, Peter Helmut Herbert; Midttømme, Kirsti (Journal article; Peer reviewed, 2019)2020Park is an innovative installation in Stavanger, Norway. This installation provides heating and cooling via a ground source heat pump (GSHP). The system combines eight 220m deep boreholes, with an air to brine heat ... -
Quantification of time-varying groundwater flow in boreholes in fractured crystalline rock using long-term distributed temperature sensing
Kvalsvik, Karoline; Ramstad, Randi Kalskin; Holmberg, Henrik; Midttømme, Kirsti (Peer reviewed; Journal article, 2022)Quantification of groundwater flow is an important factor for several applications, such as water supply, boreholes for energy extraction/storage and drainage and flood prevention projects. In this study, distributed ...