Detail publikačního výsledku

Experimental study of space lubricant evaporation in a high vacuum environment

POUZAR, J.; KOŠŤÁL, D.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Originální název

Experimental study of space lubricant evaporation in a high vacuum environment

Anglický název

Experimental study of space lubricant evaporation in a high vacuum environment

Druh

Článek WoS

Originální abstrakt

The liquid lubricant evaporation in space applications poses significant challenges, raising the risk of inaccurate estimation of lubricant implementation and the potential contamination of satellite subsystems. The study of vacuum evaporation becomes highly relevant with the increasing use of liquid lubricants in satellite constellations. This research presents a novel methodology for assessing the lubricant evaporation rate, focusing on establishing a correlation between existing analytical models and experimental measurements. The obtained experimental results clearly demonstrate a disparity between the existing analytical models and the measured evaporated mass of vacuum base oils. Importantly, these results indicate higher evaporation rates predicted by the analytical approach. This emphasises the importance of refining the analytical models to accurately predict the amount of liquid lubricant evaporated.

Anglický abstrakt

The liquid lubricant evaporation in space applications poses significant challenges, raising the risk of inaccurate estimation of lubricant implementation and the potential contamination of satellite subsystems. The study of vacuum evaporation becomes highly relevant with the increasing use of liquid lubricants in satellite constellations. This research presents a novel methodology for assessing the lubricant evaporation rate, focusing on establishing a correlation between existing analytical models and experimental measurements. The obtained experimental results clearly demonstrate a disparity between the existing analytical models and the measured evaporated mass of vacuum base oils. Importantly, these results indicate higher evaporation rates predicted by the analytical approach. This emphasises the importance of refining the analytical models to accurately predict the amount of liquid lubricant evaporated.

Klíčová slova

Space tribology; Vacuum evaporation; Multiply-alkylated cyclopentane; Perfluoropolyether

Klíčová slova v angličtině

Space tribology; Vacuum evaporation; Multiply-alkylated cyclopentane; Perfluoropolyether

Autoři

POUZAR, J.; KOŠŤÁL, D.; ŠPERKA, P.; KŘUPKA, I.; HARTL, M.

Rok RIV

2024

Vydáno

02.11.2023

Nakladatel

PERGAMON-ELSEVIER SCIENCE LTD

Místo

OXFORD

ISSN

0042-207X

Periodikum

Vacuum

Svazek

219

Číslo

A

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

https://www.sciencedirect.com/science/article/pii/S0042207X23009557

BibTex

@article{BUT185804,
  author="Josef {Pouzar} and David {Košťál} and Petr {Šperka} and Ivan {Křupka} and Martin {Hartl}",
  title="Experimental study of space lubricant evaporation in a high vacuum environment",
  journal="Vacuum",
  year="2023",
  volume="219",
  number="A",
  pages="1--7",
  doi="10.1016/j.vacuum.2023.112758",
  issn="0042-207X",
  url="https://www.sciencedirect.com/science/article/pii/S0042207X23009557"
}