Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ...
Pulsed plasma discharges are investigated here as a means of reducing the power necessary for a thermal probe to penetrate an ice sheet. When a high-energy plasma discharge occurs in ice, the ensuing shockwave fractures the ice field and reduces its thermal conductivity. If this reduction is suffici...
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ftdatacite:10.48577/jpl.hnuhik 2023-11-05T03:42:42+01:00 Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... Mier Hicks, Fernando 2023 https://dx.doi.org/10.48577/jpl.hnuhik https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.HNUHIK unknown Root Dataset dataset 2023 ftdatacite https://doi.org/10.48577/jpl.hnuhik 2023-10-09T10:57:04Z Pulsed plasma discharges are investigated here as a means of reducing the power necessary for a thermal probe to penetrate an ice sheet. When a high-energy plasma discharge occurs in ice, the ensuing shockwave fractures the ice field and reduces its thermal conductivity. If this reduction is sufficient in both magnitude and geometric extension, it can decrease the heating power necessary to keep the thermal probe descending. This concept is investigated from a theoretical point of view by modeling in a finite element thermal analysis the effects of a cracked ice region on the thermal probe's performance. Thermal conductivity reduction and cracked region extent are introduced as the parameters which predict power savings. An experimental setup was also created to allow 80 Joule discharges through an ice sample at a voltage of 40kV. The system was used in combination with a commercial thermal properties analyzer to derive thermal conductivity reduction values to feed to the system. The cracked region was ... Dataset Ice Sheet DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
description |
Pulsed plasma discharges are investigated here as a means of reducing the power necessary for a thermal probe to penetrate an ice sheet. When a high-energy plasma discharge occurs in ice, the ensuing shockwave fractures the ice field and reduces its thermal conductivity. If this reduction is sufficient in both magnitude and geometric extension, it can decrease the heating power necessary to keep the thermal probe descending. This concept is investigated from a theoretical point of view by modeling in a finite element thermal analysis the effects of a cracked ice region on the thermal probe's performance. Thermal conductivity reduction and cracked region extent are introduced as the parameters which predict power savings. An experimental setup was also created to allow 80 Joule discharges through an ice sample at a voltage of 40kV. The system was used in combination with a commercial thermal properties analyzer to derive thermal conductivity reduction values to feed to the system. The cracked region was ... |
format |
Dataset |
author |
Mier Hicks, Fernando |
spellingShingle |
Mier Hicks, Fernando Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
author_facet |
Mier Hicks, Fernando |
author_sort |
Mier Hicks, Fernando |
title |
Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
title_short |
Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
title_full |
Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
title_fullStr |
Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
title_full_unstemmed |
Thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
title_sort |
thermal probe enhanced with pulsed plasma discharges for efficient ice penetration ... |
publisher |
Root |
publishDate |
2023 |
url |
https://dx.doi.org/10.48577/jpl.hnuhik https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.HNUHIK |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_doi |
https://doi.org/10.48577/jpl.hnuhik |
_version_ |
1781700073277620224 |