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Uncertainty analysis and performance evaluation: a measurement of thermophysical properties of liquid Au in microgravity

Nawer, Jannatun and Ishikawa, Takehiko and Oda, Hirohisa and Saruwatari, Hideki and Koyama, Chihiro and Xiao, Xiao and Schneider, Stephan and Kolbe, Matthias and Matson, D. M. (2023) Uncertainty analysis and performance evaluation: a measurement of thermophysical properties of liquid Au in microgravity. npj Microgravity, 9, pp. 1-9. Nature Publishing Group. doi: 10.1038/s41526-023-00277-0. ISSN 2373-8065.

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Official URL: https://www.nature.com/articles/s41526-023-00277-0

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.

Item URL in elib:https://elib.dlr.de/197361/
Document Type:Article
Title:Uncertainty analysis and performance evaluation: a measurement of thermophysical properties of liquid Au in microgravity
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Nawer, JannatunTufts University, Medfort, MA, USAUNSPECIFIEDUNSPECIFIED
Ishikawa, TakehikoJapan Aerospace Exploration Agency, Tsukuba Space Center, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, JapanUNSPECIFIEDUNSPECIFIED
Oda, HirohisaHuman Spaceflight Technology, JAXA, Sengen, Tsukuba, Ibaraki, JapanUNSPECIFIEDUNSPECIFIED
Saruwatari, HidekiHuman Spaceflight Technology, JAXA, Sengen, Tsukuba, Ibaraki, JapanUNSPECIFIEDUNSPECIFIED
Koyama, ChihiroHuman Spaceflight Technology, JAXA, Sengen, Tsukuba, Ibaraki, JapanUNSPECIFIEDUNSPECIFIED
Xiao, XiaoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Schneider, StephanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kolbe, MatthiasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Matson, D. M.Tufts University, Medfort, MA, USAUNSPECIFIEDUNSPECIFIED
Date:24 May 2023
Journal or Publication Title:npj Microgravity
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:9
DOI:10.1038/s41526-023-00277-0
Page Range:pp. 1-9
Publisher:Nature Publishing Group
ISSN:2373-8065
Status:Published
Keywords:ISS, levitation, parabolic flight, thermophysical properties
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Materials Research and Microgravity (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Kolbe, Matthias
Deposited On:25 Sep 2023 07:08
Last Modified:04 Dec 2023 11:33

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