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Showing results 1-50 of 93 << Previous 1 2    Next >>

2023
1 Kvalsvik, Karoline Husevåg; Holmberg, Henrik; Ramstad, Randi Kalskin; Midttømme, Kirsti.
Inclusion of advection in fractures in the line source equation for analysis of thermal response tests. Geothermics 2023 ;Volume 117. p. -
NORCE NTNU Untitled
 
2 Kvalsvik, Karoline Husevåg; Ramstad, Randi Kalskin; Midttømme, Kirsti; Holmberg, Henrik.
Distributed Temperature Sensing measurements for exploring Borehole Thermal Energy Storages in Scandinavia. European Geothermal Workshop; 2023-11-08 - 2023-11-09
NTNU NORCE Untitled
 
3 Ramstad, Randi Kalskin; Midttømme, Kirsti.
Muligheter innenfor de nye nasjonale virkemidlene for ENØK. Bergvarme: Veien til energioptimalisering i Norge?; 2023-10-19 - 2023-10-19
NORCE NTNU Untitled
 
2022
4 Kvalsvik, Karoline; Ramstad, Randi Kalskin; Holmberg, Henrik; Midttømme, Kirsti.
Quantification of time-varying groundwater flow in boreholes in fractured crystalline rock using long-term distributed temperature sensing. Norwegian Journal of Geology 2022 ;Volume 102.
NORCE NTNU Untitled
 
5 Ramstad, Randi Kalskin; Justo Alonso, Maria; Acuna, José; Andersson, Olof; Stokuca, Milan; Håkansson, Niklas; Midttømme, Kirsti; Rydell, Leif.
The borehole thermal energy storage at Emmaboda, Sweden: First distributed temperature measurements. Science and Technology for the Built Environment 2022 p. -
NORCE SINTEF NTNU Untitled
 
6 Stenvik, Lars Aaberg; Gjengedal, Sondre; Ramstad, Randi Kalskin; Frengstad, Bjørn.
Hydrochemical and biotic control on iron incrustations in groundwater heat pump systems: Case study from a saline, anoxic aquifer in Melhus, Norway. Geothermics 2022 ;Volume 100. p. -
NTNU NGI Untitled
 
7 Stenvik, Lars Aaberg; Gjengedal, Sondre; Ramstad, Randi Kalskin; Frengstad, Bjørn S..
How to avoid gas clogging in groundwater heat pump systems: a case study from the Lena terrasse system in Melhus, Norway. Bulletin of Engineering Geology and the Environment 2022 ;Volume 81.(4) p. -
NTNU NGI Untitled
 
8 Stenvik, Lars Aaberg; Ramstad, Randi Kalskin; Frengstad, Bjørn S..
Optimizing submersible pump regulation of a clogging prone groundwater heat pump system in Melhus, Norway. Science and Technology for the Built Environment 2022 ;Volume 29.(1) p. 86-95
NTNU Untitled
 
2021
9 Gjengedal, Sondre; Stenvik, Lars Aaberg; Ramstad, Randi Kalskin; Ulfsnes, Jan Ivar; Hilmo, Bernt Olav; Frengstad, Bjørn S..
Online remote-controlled and cost-effective fouling and clogging surveillance of a groundwater heat pump system. Bulletin of Engineering Geology and the Environment 2021 ;Volume 80. p. 1063-1072
NTNU Untitled
 
10 Justo Alonso, Maria; Ramstad, Randi Kalskin; Holmberg, Henrik; Walnum, Harald Taxt; Midttømme, Kirsti; Andersen, Geir.
Fjell 2020 High Temperature Borehole Energy Storage - System Control for Various Operation Modes. World Geothermal Congress 2020; 2021-03-30 - 2021-10-27
NTNU NORCE SINTEF Untitled
 
11 Kvalsvik, Karoline; Ramstad, Randi Kalskin; Holmberg, Henrik; Midttømme, Kirsti.
EFFECTIVE THERMAL CONDUCTIVITY FROM THERMAL RESPONSE TESTS INCREASES WITH TIME WHEN SUFFICIENT GROUNDWATER FLOW IS PRESENT. Enerstock; 2021-06-09 - 2021-06-11
NORCE NTNU Untitled
 
12 Kvalsvik, Karoline; Ramstad, Randi Kalskin; Midttømme, Kirsti; Holmberg, Henrik.
Quantification of grondwater flow using DTS for better BTES design. Vinterkonferansen 2021; 2021-01-06 - 2021-01-08
NORCE NTNU Untitled
 
13 Midttømme, Kirsti; Ramstad, Randi Kalskin; Kvalsvik, Karoline; Justo Alonso, Maria.
Geothermal Energy Use in Norway. Country Update for 2015-2019. World Geothermal Congress 2020; 2021-03-30 - 2021-10-27
NORCE NTNU Untitled
 
14 Ramstad, Randi Kalskin.
HT-BTES GeoTermos, Norway. Geoenergidagen 2021; 2021-10-06 - 2021-10-07
NTNU Untitled
 
15 Stenvik, Lars Aaberg; Frengstad, Bjørn S.; Gjengedal, Sondre; Ramstad, Randi Kalskin.
Diagnosing Encrustation Problems in Open-loop Groundwater Heat Pump Systems in Melhus, Norway. World Geothermal Congress 2020+1 Reykjavik; 2021-03-01 - 2021-10-27
NTNU Untitled
 
2020
16 Gjengedal, Sondre; Brøtan, Vegard; Buset, Ole Tore; Larsen, Erik; Åsebø Berg, Olav; Torsæter, Ole; Ramstad, Randi Kalskin; Hilmo, Bernt Olav; Frengstad, Bjørn.
Fluid flow through 3D-printed particle beds: a new technique for understanding, validating, and improving predictability of permeability from empirical equations. Transport in Porous Media 2020 ;Volume 134. p. 1-40
NTNU SRAUFOSS Untitled
 
17 Gjengedal, Sondre; Ramstad, Randi Kalskin; Hilmo, Bernt Olav; Frengstad, Bjørn S..
Fouling and clogging surveillance in open loop GSHP systems: A systematic procedure for fouling and clogging detection in the whole groundwater circuit. Bulletin of Engineering Geology and the Environment 2020 ;Volume 79. p. 69-82
NTNU Untitled
 
18 Midttømme, Kirsti; Alonso, Maria Justo; Krafft, Charlotte Gannefors; Kvalsvik, Karoline; Ramstad, Randi Kalskin; Stene, Jørn.
Geothermal Energy Use in Norway, Country Update for 2015-2019.. World Geothermal Congress 2020; 2020-04-27 - 2020-05-01
NORCE NTNU Untitled
 
19 Midttømme, Kirsti; Ramstad, Randi Kalskin; Alonso, Maria Justo; Krafft, Charlotte Gannefors.
Geothermal energy systems – understanding the heat exchange by distributed temperature sensing (DTS). 34th Nordic Geological Winter Meeting; 2020-01-08 - 2020-01-10
NORCE NTNU Untitled
 
20 Ramstad, Randi Kalskin; Stenvik, Lars Aaberg.
Lena terrasse, Melhus: Long-term performance of GSHP systems for commercial, institutional and multi-family buildings. IEA HPT Annex 52; 2020-11-20 - 2020-11-20
NTNU Untitled
 
21 Stenvik, Lars Aaberg; Ramstad, Randi Kalskin; Kristensen, Lene.
Test of Differential Monitoring of Stability (DMS) borehole temperature data to map groundwater flow in the unstable rock mass at Åknes, Norway. I: ISRM International Symposium - EUROCK 2020. Online: https://www.onepetro.org/conferences/ISRM/EUROCK20: International Society for Rock Mechanics and Rock Engineering 2020 ISBN 9788282080729. p. -
NTNU Untitled
 
2019
22 Alonso, Maria Justo; Line, Tor; Næss, Erling; Ramstad, Randi Kalskin; Breuhaus, Peter Helmut Herbert; Midttømme, Kirsti.
Lessons learned after one-year of use of a highly efficient neighbourhood in Norway. IOP Conference Series: Materials Science and Engineering 2019 ;Volume 609:072052.(7) p. 1-7
NORCE NTNU SINTEF Untitled
 
23 Gjengedal, Sondre; Stenvik, Lars Aaberg; Storli, Pål-Tore Selbo; Ramstad, Randi Kalskin; Hilmo, Bernt Olav; Frengstad, Bjørn S..
Design of Groundwater Heat Pump Systems. Principles, Tools, and Strategies for Controlling Gas and Precipitation Problems. Energies 2019 ;Volume 12.(19) p. -
NTNU Untitled
 
24 Kvalsvik, Karoline; Midttømme, Kirsti; Ramstad, Randi Kalskin.
Geothermal Energy Use, Country Update for Norway. European Geothermal Congress 2019; 2019-06-11 - 2019-06-14
NORCE NTNU Untitled
 
25 Midttømme, Kirsti; Ramstad, Randi Kalskin; Alonso, Maria Justo; Kvalsvik, Karoline; Stene, Jørn.
Country News - Norway. IEA HPT Annex 52 3th Expert Meeting; 2019-05-23 - 2019-05-24
NORCE NTNU Untitled
 
26 Midttømme, Kirsti; Ramstad, Randi Kalskin; Alonso, Maria Justo; Kvalsvik, Karoline; Stene, Jørn; Holmberg, Henrik; Sivertsen, Ove.
Norway - Annex 52 Monitoring Projects. IEA HPT Annex 52 3th Expert Meeting; 2019-05-23 - 2019-05-24
NORCE NTNU Untitled
 
27 Midttømme, Kirsti; Ramstad, Randi Kalskin; Alonso, Maria Justo; Stene, Jørn.
Country News- Norway. IEA HPT Annex 52 4th Expert Meeting; 2019-09-16 - 2019-09-17
NORCE NTNU Untitled
 
28 Midttømme, Kirsti; Ramstad, Randi Kalskin; Alonso, Maria Justo; Stene, Jørn.
Norway- Annex 52 Monitoring Projects. IEA HPT 4th expert meeting; 2019-09-16 - 2019-09-17
NORCE NTNU Untitled
 
29 Midttømme, Kirsti; Skarphagen, Helge; Ramstad, Randi Kalskin; Bastesen, Eivind; Kvalsvik, Karoline.
Developing Borehole Thermal Energy Storage (BTES) towards high temperature (HT) BTES. Geologisk Vintermøte, Bergen; 2019-01-09 - 2019-01-09
NORCE NTNU Untitled
 
30 Stenvik, Lars Aaberg; Gjengedal, Sondre; Frengstad, Bjørn S.; Ramstad, Randi Kalskin.
Application of a flow-through cell to monitor groundwater source heat pump systems in Melhus, Norway. 46th IAH Congress: Groundwater management and governance – coping with water scarcity; 2019-09-22 - 2019-09-27
NTNU Untitled
 
31 Stenvik, Lars Aaberg; Gjengedal, Sondre; Frengstad, Bjørn S.; Ramstad, Randi Kalskin.
Groundwater source heat pumps systems: Principles and challenges. Clean Energy Symposium; 2019-02-08 - 2019-02-08
NTNU Untitled
 
32 Stenvik, Lars Aaberg; Gjengedal, Sondre; Frengstad, Bjørn S.; Ramstad, Randi Kalskin.
ORMEL 2: Iron and manganese encrustations in open-loop ground source heat pump systems. Vinterkonferansen 2019; 2019-01-07 - 2019-01-09
NTNU Untitled
 
2018
33 ; Opsal, Øystein Lid.
Geological parameters and shear strength of dry tills from the southern half of Norway in relation to bedrock geology. Trondheim: NTNU 2018 (ISBN 978-82-326-3198-8) 180 p.
NTNU Untitled
 
34 Bjugstad, Hanne; Ramstad, Randi Kalskin.
Billig, miljøvennlig oppvarming.
NTNU Untitled
 
35 Børsum, Henrikke Marie Hogseth.
Vanninfiltrasjon i fjellbrønner i forbindelse med drivingen av Follobanetunnelen. Trondheim: NTNU 2018 163 p.
NTNU Untitled
 
36 Gjengedal, Sondre; Ramstad, Randi Kalskin; Hilmo, Bernt Olav; Frengstad, Bjørn S..
Video inspection of wells in open loop ground source heat pump systems in Norway. IGSHPA Reasearch Conference 2018; 2018-09-18 - 2018-09-19
NTNU Untitled
 
37 Hellestveit, Martina Seyoum.
3D-modellering av grunnvannstrømning og varmetransport i akviferen i Melhus sentrum - En kvartær- og hydrogeologisk tolkning, med vurdering av uttakskapasitet. Trondheim: NTNU 2018 173 p.
NTNU Untitled
 
38 Holmberg, Henrik; Ramstad, Randi Kalskin; Riise, Mari Helen.
Temperature profile measurements – easy, cheap and informative. IGSHPA Reasearch Conference 2018; 2018-09-18 - 2018-09-18
NTNU Untitled
 
39 Lende, Ingvild Bjelland.
Utvikling av Fingeravtrykkmetoden med analysedata fra passive prøvetakingsenheter - Bruk av kjemiske fingeravtrykk i kildesporing knyttet til miljøovervåkning av hydrokarboner i vannforekomster. Trondheim: NTNU 2018 161 p.
NTNU Untitled
 
40 Mevik, Amalie.
Numerisk 3D-modellering av hydrogeologiske forhold på Slettemoen,Krødsherad kommune - Vurdering av beskyttelsessoner rundt produksjonsbrønner, bærekraftig grunnvannsuttak og grunnvannsnivå under grustak. Trondheim: NTNU 2018 169 p.
NTNU Untitled
 
41 Midttømme, Kirsti; Ramstad, Randi Kalskin.
Det grønne skiftet går under jorda. Anleggsmaskinen, nr 4 2018 [Business/trade/industry journal] 2018-06-01
NORCE NTNU Untitled
 
42 Ramstad, Randi Kalskin.
Energibrønner som varmekilde for varmepumper. VVS foreningen/CGER, Bergen 10 april 2018; 2018-04-10 - 2018-04-10
NTNU Untitled
 
43 Ramstad, Randi Kalskin; Midttømme, Kirsti.
Framtidens lager för värme och kyla. Energiforsk [Internet] 2018-09-24
NORCE NTNU Untitled
 
44 Solberg, Runa Aronsen.
Modification of Existing Permeameters to Estimate Hydraulic Conductivity of Groundwater in Unconsolidated Sand in the Laboratory. Trondheim: NTNU 2018 160 p.
NTNU UiO Untitled
 
45 Stenvik, Lars Aaberg.
Bruk av temperaturmålinger til kartlegging av grunnvannsstrømning - Test og metodeutvikling med data fra Åknes. Trondheim: NTNU 2018 118 p.
NTNU Untitled
 
46 Velstad, Viveke.
Evaluering av ENKIs muligheter innen skredvarsling. Trondheim: NTNU 2018 140 p.
NTNU Untitled
 
2017
47 Anderssen, Anja Beate Skogheim.
Grunnvannsbaserte varmepumper Tilrettelegging for bruk av grunnvann til oppvarming og kjøling i Melhus sentrum - sentralisert løsning. Trondheim: NTNU 2017 112 p.
NTNU Untitled
 
48 Brøste, Heidi Marstein.
Vannkvalitet knyttet til grunnvannsbaserte grunnvarmeanlegg i Melhus og Elverum. Trondheim: NTNU 2017 133 p.
NTNU Untitled
 
49 Flugsrud, Inger Strøm.
Vann- og varmetransport i grunnvannsakviferen i Melhus sentrum - konseptuell vurdering.. Trondheim: NTNU 2017 122 p.
NTNU Untitled
 
50 Ramstad, Randi Kalskin.
Aquifer Thermal Energy Storage (ATES) and direct use of groundwater for heating and cooling – Norwegian experiences. Seminar Poland, Iceland, EGEC, Norway Bergen; 2017-10-10
NTNU Untitled
 
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