Some considerations on the vibrational environment of the DSC-DCMIX1 experiment onboard ISS

Jurado, R.; Gavaldà, Jna.; Simon, Michael; Pallarès, Jordi; Laverón‐Simavilla, Ana; Ruíz, Xavier; Shevtsova, Valentina

doi:10.1016/j.actaastro.2016.09.033

Cited by 11 publications

(3 citation statements)

References 18 publications

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“…However, the transient (pulse-like) acceleration of external forces (docking, orbit correction, etc.) may affect the diffusion-controlled processes depending on the duration of the pulse [20,21]. Regularly, accelerometric data are analyzed only for a few runs per experiment [22,23].…”

Section: Temperature Controlmentioning

confidence: 99%

Data quality assessment of Diffusion Coefficient Measurements in ternary mIXtures 4 (DCMIX4) experiment

et al. 2020

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Thermodiffusion, which leads to a component separation in a mixture due to the thermal gradient, still does not have an unambiguous microscopic picture. Therefore, experimental studies, especially in convection free environment, are important. As part of the 4th campaign on the DCMIX project, thermodiffusion experiments on three compositions of the toluene-methanol-cyclohexane ternary mixture, on a mixture of fullerene-tetrahydronaphthalene-toluene and on a mixture of polystyrene-toluene-cyclohexane have been performed in microgravity conditions on board the International Space Station. A binary mixture of polystyrene-toluene has been filled into the companion cell for the campaign. The Selectable Optical Diagnostics Instrument (SODI), wich is a two-wavelength Mach-Zehnder interferometer for the ternary mixtures, plus a monochromatic Mach-Zehnder interferometer for the binary mixture, has been used in order to obtain the temperature and the concentration fields in the cells. Precisely, it is a 5-steps phase-shifting interferometry technique which is implemented with SODI, producing by means of laser illumination a set of 5 phase-shifted images of between them as function of the time. A total of 58 runs of various durations and at different mean temperatures have been conducted. Here, we evaluate the contrast of the interferograms, the quality in the phase stepping, the stability of the thermal regulation of the experiments and the level of environmental disturbances on board the space station during the campaign.

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Section: Temperature Controlmentioning

confidence: 99%

Data quality assessment of Diffusion Coefficient Measurements in ternary mIXtures 4 (DCMIX4) experiment

et al. 2020

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“…For some runs, data are acquired simultaneously for the companion cell and for a primary cell. The measurements in the companion cell are carried out in order to study the possible influence of the residual gravity on the experiments, a topic of interest for microgravity assessment, [28][29][30][31]57 and to cross-check with ground based measurements.…”

Section: The Journal Of Chemical Physicsmentioning

confidence: 99%

Results of the DCMIX1 experiment on measurement of Soret coefficients in ternary mixtures of hydrocarbons under microgravity conditions on the ISS

Galand

Vaerenbergh

Khlybov

et al. 2019

The Journal of Chemical Physics

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“…In the framework of the European Space Agency, all campaigns of the program called "Diffusion and Thermodiffusion Coefficients Measurements in Ternary Mixtures (DCMIX)" aim to accurately measure pure diffusion, thermodiffusion and Soret coefficients of different, but technologically relevant, ternary liquid systems (Shevtsova et al 2014, Triller et al 2018 inside the International Space Station (ISS). Due to the own nature of the physical processes implied, molecular diffusion and thermodiffusion experiments take a long time, therefore, a careful monitoring of the vibrational environment is thus of capital importance to prevent spurious results potentially related to detectable disturbances occurred during the experiments (Jurado et al 2016, Ollé et al 2017, Dubert et al 2018. Based on this, the present work focused on the preliminary characterization of the DCMIX4 accelerometric environment taking into account the signals coming from the es09006 sensor, nearest to the experiment.…”

Section: Introductionmentioning

confidence: 99%

On the Monitoring of the Vibratory Environment of DCMIX4 Campaign. Preliminary Results

Dubert

Marín-Genescà

Simon

et al. 2020

Microgravity Sci. Technol.

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Some considerations on the vibrational environment of the DSC-DCMIX1 experiment onboard ISS

Cited by 11 publications

References 18 publications

Data quality assessment of Diffusion Coefficient Measurements in ternary mIXtures 4 (DCMIX4) experiment

Data quality assessment of Diffusion Coefficient Measurements in ternary mIXtures 4 (DCMIX4) experiment

Results of the DCMIX1 experiment on measurement of Soret coefficients in ternary mixtures of hydrocarbons under microgravity conditions on the ISS

On the Monitoring of the Vibratory Environment of DCMIX4 Campaign. Preliminary Results

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