@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

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    dct:description "In response to NASA SBIR solicitation H3.01 \"Thermal Control for Future Human Exploration\", Advanced Cooling Technologies, Inc. (ACT) is proposing a novel Phase Change Material (PCM) vapor chamber to ameliorate the temperature fluctuations encountered during planetary (or lunar) orbit.  The PCM vapor chamber will consist of a packed bed of micro-encapsulated PCM beads surrounded by a two-phase working fluid.  The PCM beads will act as both a highly efficient thermal storage medium, as well as a wick structure for capillary pumping of the two-phase working fluid.  The two-phase heat transfer by the working fluid increases the effective thermal conductivity of the PCM by a factor of 1000 or more.  This approach eliminates the need for embedding thermally conductive metal fins or carbon foam, which typically consume at least 50% of the system mass in traditional PCM heat exchangers.  The PCM vapor chamber not only has the potential to exceed a 2/3 PCM mass ratio using paraffin wax, but also provides several advantages over the state-of-the-art, water-based PCM heat exchangers.  The concept proposed by ACT will eliminate the need for metal fins and foams, and significantly reduce the mass of non-PCM materials.  In addition, the PCM vapor chamber can serve as either a stand-alone thermal capacitor or a dual thermal capacitor/heat exchanger." ;
    dct:identifier "TECHPORT_18486" ;
    dct:issued "2014-12-01"^^xsd:date ;
    dct:modified "2020-01-29"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Vapor Chamber with Phase Change Material-based Wick Structure for Thermal Control of Manned Spacecraft, Phase I" ;
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            vcard:hasEmail <mailto:hq-techport@mail.nasa.gov> ] ;
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    dct:title "Vapor Chamber with Phase Change Material-based Wick Structure for Thermal Control of Manned Spacecraft, Phase I" ;
    dcat:accessURL <https://techport.nasa.gov/view/18486> ;
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<https://data.amerigeoss.org/dataset/7cbec355-30c3-4c5a-9661-5160c415b422/resource/2bc679dd-c98a-47d7-982e-088ac4f3f05c> a dcat:Distribution ;
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    dct:title "Vapor Chamber with Phase Change Material-based Wick Structure for Thermal Control of Manned Spacecraft, Phase I" ;
    dcat:accessURL <https://techport.nasa.gov/api/projects/18486> ;
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<https://data.amerigeoss.org/dataset/7cbec355-30c3-4c5a-9661-5160c415b422/resource/5784ae48-f6ee-40a4-b3d1-d78137eb08e0> a dcat:Distribution ;
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    dct:title "Vapor Chamber with Phase Change Material-based Wick Structure for Thermal Control of Manned Spacecraft, Phase I" ;
    dcat:accessURL <https://techport.nasa.gov/api/projects/18486.xml> ;
    dcat:mediaType "text/html" .

<https://data.amerigeoss.org/dataset/7cbec355-30c3-4c5a-9661-5160c415b422/resource/927cbb06-6367-4e4d-9cec-49ddfaf2967c> a dcat:Distribution ;
    dct:description "Techport Project PDF Export" ;
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    dct:issued "2020-11-12T04:44:30.551815"^^xsd:dateTime ;
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    dct:title "Vapor Chamber with Phase Change Material-based Wick Structure for Thermal Control of Manned Spacecraft, Phase I" ;
    dcat:accessURL <https://techport.nasa.gov/datasheet/18486> ;
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<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
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