Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity
Abstract A new method for quantifying facility performance has been discussed in this study that encompasses uncertainties associated with thermophysical property measurement. Four key thermophysical properties: density, volumetric thermal expansion coefficient, surface tension, and viscosity of liq...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-05-01
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| Series: | npj Microgravity |
| Online Access: | https://doi.org/10.1038/s41526-023-00277-0 |
| _version_ | 1827615576065835008 |
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| author | Jannatun Nawer Takehiko Ishikawa Hirohisa Oda Hideki Saruwatari Chihiro Koyama Xiao Xiao Stephan Schneider Matthias Kolbe Douglas M. Matson |
| author_facet | Jannatun Nawer Takehiko Ishikawa Hirohisa Oda Hideki Saruwatari Chihiro Koyama Xiao Xiao Stephan Schneider Matthias Kolbe Douglas M. Matson |
| author_sort | Jannatun Nawer |
| collection | DOAJ |
| description | Abstract A new method for quantifying facility performance has been discussed in this study that encompasses uncertainties associated with thermophysical property measurement. Four key thermophysical properties: density, volumetric thermal expansion coefficient, surface tension, and viscosity of liquid Au have been measured in microgravity environment using two different levitation facilities. Levitation experiments were conducted using the Electrostatic Levitation Furnace (ELF) onboard the ISS in Argon and air, and the TEMPUS Electromagnetic Levitation (EML) facility on a Novespace Zero-G aircraft parabolic flight in Argon. The traditional Maximum Amplitude method was augmented through the use of Frequency Crossover method to identify the natural frequency for oscillations induced on a molten sample during Faraday forcing in ESL. The EML tests were conducted using a pulse excitation method where two techniques, one imaging and one non-imaging, were used to study surface oscillations. The results from both facilities are in excellent agreement with the published literature values. A detailed study of the accuracy and precision of the measured values has also been presented in this work to evaluate facility performance. |
| first_indexed | 2024-03-09T09:12:48Z |
| format | Article |
| id | doaj.art-4ab5c76c575c44599c07fa5a56deefca |
| institution | Directory Open Access Journal |
| issn | 2373-8065 |
| language | English |
| last_indexed | 2024-03-09T09:12:48Z |
| publishDate | 2023-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Microgravity |
| spelling | doaj.art-4ab5c76c575c44599c07fa5a56deefca2023-12-02T08:02:33ZengNature Portfolionpj Microgravity2373-80652023-05-01911910.1038/s41526-023-00277-0Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravityJannatun Nawer0Takehiko Ishikawa1Hirohisa Oda2Hideki Saruwatari3Chihiro Koyama4Xiao Xiao5Stephan Schneider6Matthias Kolbe7Douglas M. Matson8Department of Mechanical Engineering, Tufts UniversityInstitute of Space and Astronautical Science, JAXAHuman Spaceflight Technology, JAXA, SengenHuman Spaceflight Technology, JAXA, SengenHuman Spaceflight Technology, JAXA, SengenInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR)Department of Mechanical Engineering, Tufts UniversityAbstract A new method for quantifying facility performance has been discussed in this study that encompasses uncertainties associated with thermophysical property measurement. Four key thermophysical properties: density, volumetric thermal expansion coefficient, surface tension, and viscosity of liquid Au have been measured in microgravity environment using two different levitation facilities. Levitation experiments were conducted using the Electrostatic Levitation Furnace (ELF) onboard the ISS in Argon and air, and the TEMPUS Electromagnetic Levitation (EML) facility on a Novespace Zero-G aircraft parabolic flight in Argon. The traditional Maximum Amplitude method was augmented through the use of Frequency Crossover method to identify the natural frequency for oscillations induced on a molten sample during Faraday forcing in ESL. The EML tests were conducted using a pulse excitation method where two techniques, one imaging and one non-imaging, were used to study surface oscillations. The results from both facilities are in excellent agreement with the published literature values. A detailed study of the accuracy and precision of the measured values has also been presented in this work to evaluate facility performance.https://doi.org/10.1038/s41526-023-00277-0 |
| spellingShingle | Jannatun Nawer Takehiko Ishikawa Hirohisa Oda Hideki Saruwatari Chihiro Koyama Xiao Xiao Stephan Schneider Matthias Kolbe Douglas M. Matson Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity npj Microgravity |
| title | Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity |
| title_full | Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity |
| title_fullStr | Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity |
| title_full_unstemmed | Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity |
| title_short | Uncertainty analysis and performance evaluation of thermophysical property measurement of liquid Au in microgravity |
| title_sort | uncertainty analysis and performance evaluation of thermophysical property measurement of liquid au in microgravity |
| url | https://doi.org/10.1038/s41526-023-00277-0 |
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