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Experiment for validation of numerical models of coupled heat and mass transfer around energy cables

Verschaffel‐Drefke, Christoph ; Balzer, Constantin ; Schedel, Markus ; Hinrichsen, Volker ; Sass, Ingo (2022):
Experiment for validation of numerical models of coupled heat and mass transfer around energy cables. (Publisher's Version)
In: Vadose Zone Journal, 21 (1), Wiley, e-ISSN 1539-1663,
DOI: 10.26083/tuprints-00021453,
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Item Type: Article
Origin: Secondary publication via sponsored Golden Open Access
Status: Publisher's Version
Title: Experiment for validation of numerical models of coupled heat and mass transfer around energy cables
Language: English
Abstract:

The increasing decentralization of electrical energy production as well as an increasing number of fluctuating regenerative energy sources require significant investments in grid expansion. Among other assessments, an exact prediction of the thermal behavior of the cable environment is necessary to be able to design cable routes both technically and economically sufficient. To investigate the coupled thermal and hydraulic processes around a cable-like heat source with high temporal and spatial resolution under controlled boundary conditions, a cylindrical laboratory test was designed and experiments with two soils conducted. The data collected can be used to validate models of coupled heat and mass transfer around power cables. Within this study, the experimental data was compared with a modified model approach that is based on experimentally determined input data for the thermal and hydraulic properties of the examined soils. Although overall good agreement in the temperature field around the central heat source was observed, differences in the spatial distribution of the dry-out zone near the heat source led to some shift between the measured and simulated temperatures.

Journal or Publication Title: Vadose Zone Journal
Volume of the journal: 21
Issue Number: 1
Place of Publication: Darmstadt
Publisher: Wiley
Collation: 14 Seiten
Classification DDC: 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften
Divisions: 11 Department of Materials and Earth Sciences > Earth Science > Geothermal Science and Technology
Date Deposited: 02 Jun 2022 11:02
Last Modified: 22 Aug 2022 08:47
DOI: 10.26083/tuprints-00021453
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-214533
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21453
PPN: 495282804
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