Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Hagen Steger"'
Publikováno v:
Geothermal Energy, Vol 12, Iss 1, Pp 1-24 (2024)
Abstract Thermal properties of grouting materials for borehole heat exchangers (BHE) are currently analysed with varying measurement methods and analysis procedures, resulting in difficulties when comparing values of different studies. This study the
Externí odkaz:
https://doaj.org/article/03293d16bddc4d94bf6e80a8addd62e7
Publikováno v:
Geothermal Energy, Vol 12, Iss 1, Pp 1-22 (2024)
Abstract Enhanced thermal response tests (ETRT) enable the evaluation of depth-specific effective thermal conductivities. Groundwater flow can significantly influence the interpretation of ETRT results. Hence, this study aims to critically evaluate a
Externí odkaz:
https://doaj.org/article/6133695e6fef488eae820bec2d10d554
With an enhanced thermal response test (ETRT) depth-specific effective thermal conductivities can be determined. For this, a correct determination of the specific heat load is crucial. With an ETRT the heat is injected along the depth of the borehole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5988029654d0d13d0ac7c9596308cb87
https://doi.org/10.5194/egusphere-egu23-5771
https://doi.org/10.5194/egusphere-egu23-5771
Publikováno v:
Grundwasser. 26:135-153
Bei der Installation von Erdwarmesonden ist die Vermeidung hydrogeologischer Schadensfalle mit einer adaquaten Hinterfullung essenziell. In dieser Studie wurde ein magnetisches Suszeptibilitatsmesssystem zur Hinterfullkontrolle im Labormasstab unters
Publikováno v:
Geotechnical and Geological Engineering, 40 (11), 5333–5346
Soft rocks can weather and lose their structure within a short time due to drying out and rewetting. Thus they are very sensitive to weathering. Since these rocks are often found in the shallow subsurface, they are of great practical relevance in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb1da1427fb16aa3e429125c4b55b214
Publikováno v:
Renewable Energy. 143:1247-1258
The standard thermal response tests (TRT) provide integral and effective thermal parameters of the ground in the vicinity of borehole heat exchangers (BHE). However, typical ground properties are heterogeneously distributed. As a result, advanced TRT
Publikováno v:
Geothermics. 81:198-208
The corrosion behavior of carbon steel in CO2-saturated artificial geothermal brine was tested in the absence and presence of an amine-based inhibitor by weight loss tests and electrochemical measurements. Experimental conditions were adapted to the
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 68:1062-1070
The thermal response test (TRT) is the standard method for characterizing the thermal properties of the ground and those of a borehole heat exchanger (BHE). During the TRT, the inlet and outlet temperatures of the BHE are monitored. However, this tes
The measurement of the undisturbed ground temperature (UGT) serves to design low-temperature geothermal systems, in particular borehole heat exchangers (BHEs), and to monitor shallow aquifers. Wireless and miniaturized probes such as the Geosniff (GS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5287b37bbc5d3493935e1225bd22429f
https://doi.org/10.5194/egusphere-egu21-9948
https://doi.org/10.5194/egusphere-egu21-9948
Autor:
Linda Schindler, Hagen Steger, Sascha Wilke, Simon Schüppler, Roman Zorn, Christina Fliegauf, Philipp Blum, Hanne Karrer
The thermal conductivity of the subsurface is a fundamental parameter for the design of borehole heat exchangers in shallow geothermal energy systems. An average thermal conductivity value is usually assumed. Under real conditions, however, the therm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b2219af60a439bdc455c08ae8a2b16c
https://doi.org/10.5194/egusphere-egu2020-21275
https://doi.org/10.5194/egusphere-egu2020-21275