Results 91 to 100 of about 5,412 (233)

Fabric, Texture, and Bubble Characteristics of the Million‐Year Old Allan Hills Blue Ice Core ALHIC1901

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Ice cores from the Allan Hills blue ice area in Antarctica have been dated to several million years of age. However, the stratigraphy of these cores is often disturbed, and age reversals are common, hampering the interpretation of the derived climate records.
Nicolas Stoll, Marguerite Shaya, Liam Kirkpatrick, Johannes Freitag, Valens Hishamunda, John‐Morgan Manos, Daniela Jansen, Ilka Weikusat, John Fegyveresi, Bradley Paul Lipovsky, Ed Brook, Sarah Shackleton, John Higgins, T. J. Fudge   +13 more
wiley   +1 more source

Model for dimensioning borehole heat exchanger applied to mixed-integer-linear-problem (MILP) energy system optimization

Geothermal Energy
This paper introduces three novel approaches to size geothermal energy piles in a MILP, offering fresh perspectives and potential solutions. The research overlooks MILP models that incorporate the sizing of a geothermal borefield.
Tobias Blanke, Holger Born, Bernd Döring, Joachim Göttsche, Ulf Herrmann, Jérôme Frisch, Christoph van Treeck   +6 more
doaj   +1 more source

Numerical Simulation of Nanofluid Suspensions in a Geothermal Heat Exchanger

Energies, 2018
It has been shown that using nanofluids as heat carrier fluids enhances the conductive and convective heat transfer of geothermal heat exchangers. In this paper, we study the stability of nanofluids in a geothermal exchanger by numerically simulating ...
Xiao-Hui Sun, Hongbin Yan, Mehrdad Massoudi, Zhi-Hua Chen, Wei-Tao Wu   +4 more
doaj   +1 more source

Making the Red One Green – Renewable Heat from Abandoned Flooded Mines [PDF]

, 2016
Abandoned mines are often allowed to flood, sometimes overflowing at the surface to form discharges of potentially contaminated (often ochreous, acidic or metal-rich) mine water.
Banks, David
core  

Comparison of two different models for pile thermal response test interpretation [PDF]

, 2014
Thermal response tests (TRTs) are regularly used to characterise the thermal resistance of borehole heat exchangers and to assess the thermal conductivity of the surrounding ground.
AM Omer, ASHRAE, C Yavuzturk, CJ Wood, D Banks, Duncan Nicholson, F Loveridge, F Loveridge, F Loveridge, Fleur Loveridge, G Hellstrom, GSHPA, H Brandl, H Fujii, H Park, HJL Witte, HS Carslaw, J Raymond, L Laloui, LR Ingersoll, NHBC, P Hemmingway, RA Beier, S Javed, S Javed, S Javed, S Signorelli, SIA, V Gnielinski, W Austin, W Yang, William Powrie, X Yu   +32 more
core   +1 more source

Optimal sizing of borehole heat exchangers

Strojarstvo : časopis za teoriju i praksu u strojarstvu, 2009
The heat pumps coupled to the borehole heat exchangers (BHE) can serve for heating and/or cooling of buildings. Optimal sizing of BHE is important because of high drilling costs and importance of matching borehole thermal capacity with the capacity of the heat pump.
Ruševljan, Miroslav, Ćurko, Tonko
openaire   +1 more source

Analysis of rock mass borehole temperatures with vertical heat exchanger

Research in Agricultural Engineering, 2012
The goal of the article is to analyze the distribution and changes of temperatures in boreholes with the rock mass/fluid tubular heat exchangers used as an energy source for the heat pump.
R. Adamovský, L. Mašek, P. Neuberger
doaj   +1 more source

Impact of operational temperature changes and freeze-thaw cycles on the hydraulic conductivity of borehole heat exchangers. [PDF]

Geotherm Energy (Heidelb), 2021
Kupfernagel JH, Hesse JC, Schedel M, Welsch B, Anbergen H, Müller L, Sass I.   +6 more
europepmc   +1 more source

Thermal Performance of Borehole Heat Exchangers with Varying Borehole Depths in Cold Regions: Implications from In Situ Thermal Response Tests

Energies
In cold regions, performance reduction in a Ground-Coupled Heat Pump (GSHP) system has been frequently reported. Many operational strategies have been adopted to mitigate such an undesirable phenomenon.
Zezhou Yan, Qi Zhang, Ming Yang, Peiyu Zeng, Jin Luo, Deshan Cui   +5 more
doaj   +1 more source

Analysis of ground-source heat pumps in north-of-England homes [PDF]

, 2016
YesThe performance of Ground Source Heat Pump (GSHP) systems for domestic use is an increasing area of study in the UK. This paper examines the thermal performance of three bespoke shallow horizontal GSHP systems installed in newly built residential ...
Alexis Ali, Alma Schellart, Climate Change Act 2008, Curtis R, DECC, DECC, DECC (Department for Energy and Climate Change), Defra (Department of Environment, Food and Rural Affairs), EST (Energy Saving Trust), Fawcett T, Frontier Economics and Element Energy, IEA (International Energy Agency), Mohamad Abdel-Aal, Mostafa Mohamed, Ofgem (Office of Gas and Electricity Markets), REF (The Renewable Energy Forum), Simon Tait   +16 more
core   +1 more source