Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements
Remote sensing indicates the presence of hydrogen rich regions associated with the lunar poles. The logical hypothesis is that there is cryogenically trapped water ice located in craters at the lunar poles. Some of the craters have been in permanent darkness for a billion years. The presence of wate...
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ftnasantrs:oai:casi.ntrs.nasa.gov:20090017895 2023-05-15T16:37:30+02:00 Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements Ethridge, Edwin C. Kaukler, William Unclassified, Unlimited, Publicly available January 05, 2009 application/pdf http://hdl.handle.net/2060/20090017895 unknown Document ID: 20090017895 http://hdl.handle.net/2060/20090017895 Copyright, Distribution as joint owner in the copyright CASI Man/System Technology and Life Support MSFC-2202 47th AIAA Aerospace Sciences Meeting; 5-8 Jan. 2009; Orlando, FL; United States 2009 ftnasantrs 2019-07-21T01:22:49Z Remote sensing indicates the presence of hydrogen rich regions associated with the lunar poles. The logical hypothesis is that there is cryogenically trapped water ice located in craters at the lunar poles. Some of the craters have been in permanent darkness for a billion years. The presence of water at the poles as well as other scientific advantages of a polar base, have influenced NASA plans for the lunar outpost. The lunar outpost has water and oxygen requirements on the order of 1 ton per year scaling up to as much as 10 tons per year. Microwave heating of the frozen permafrost has unique advantages for water extraction. Proof of principle experiments have successfully demonstrated that microwaves will couple to the cryogenic soil in a vacuum and the sublimed water vapor can be successfully captured on a cold trap. The dielectric properties of lunar soil will determine the hardware requirements for extraction processes. Microwave frequency dielectric property measurements of lunar soil simulant have been measured. Other/Unknown Material Ice permafrost NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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Man/System Technology and Life Support |
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Man/System Technology and Life Support Ethridge, Edwin C. Kaukler, William Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
topic_facet |
Man/System Technology and Life Support |
description |
Remote sensing indicates the presence of hydrogen rich regions associated with the lunar poles. The logical hypothesis is that there is cryogenically trapped water ice located in craters at the lunar poles. Some of the craters have been in permanent darkness for a billion years. The presence of water at the poles as well as other scientific advantages of a polar base, have influenced NASA plans for the lunar outpost. The lunar outpost has water and oxygen requirements on the order of 1 ton per year scaling up to as much as 10 tons per year. Microwave heating of the frozen permafrost has unique advantages for water extraction. Proof of principle experiments have successfully demonstrated that microwaves will couple to the cryogenic soil in a vacuum and the sublimed water vapor can be successfully captured on a cold trap. The dielectric properties of lunar soil will determine the hardware requirements for extraction processes. Microwave frequency dielectric property measurements of lunar soil simulant have been measured. |
format |
Other/Unknown Material |
author |
Ethridge, Edwin C. Kaukler, William |
author_facet |
Ethridge, Edwin C. Kaukler, William |
author_sort |
Ethridge, Edwin C. |
title |
Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
title_short |
Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
title_full |
Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
title_fullStr |
Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
title_full_unstemmed |
Extraction of Water from Polar Lunar Permafrost with Microwaves - Dielectric Property Measurements |
title_sort |
extraction of water from polar lunar permafrost with microwaves - dielectric property measurements |
publishDate |
2009 |
url |
http://hdl.handle.net/2060/20090017895 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
CASI |
op_relation |
Document ID: 20090017895 http://hdl.handle.net/2060/20090017895 |
op_rights |
Copyright, Distribution as joint owner in the copyright |
_version_ |
1766027793707040768 |