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Measurement of the Soret coefficients for a ternary hydrocarbon mixture in low gravity environment
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10.1063/1.4802984
/content/aip/journal/jcp/138/20/10.1063/1.4802984
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/20/10.1063/1.4802984

Figures

Image of FIG. 1.
FIG. 1.

Front view of the DSC cell array.

Image of FIG. 2.
FIG. 2.

SODI facility and CSA astronaut Bob Thirsk, on-board ISS before installing DSC cell array inside that box.

Image of FIG. 3.
FIG. 3.

(a) Interferometer moving bridge, (b) interferometer fixed bridge, and (c) assembled SODI-DSC experimental apparatus.

Image of FIG. 4.
FIG. 4.

(a) Scheme of the interferometer moving bridge setup, (b) scheme of the interferometer fixed bridge setup, and (c) assembled SODI-DSC scheme of experimental setup.

Image of FIG. 5.
FIG. 5.

Experimental cell and temperature controller sketch.

Image of FIG. 6.
FIG. 6.

Separation versus time during thermodiffusion phase of DSC-Run7 and 12-THN.

Image of FIG. 7.
FIG. 7.

Principle scheme of Fourier transform image processing technique to analyze optical digital interferometry of a ternary system: (a) and (b) Converted binary MR and MN lasers data to bitmap images, (c) and (e) cropped MR and MN reference images, respectively, (d) and (f) cropped current MR and MN images, respectively, (g)–(j) two-dimensional fast Fourier transform magnitude of image in parts (c), (d), (e), and (f), respectively, (k)–(n) inversed 2D fast Fourier transform magnitude of filtered image in parts (g), (h), (i), and (j), respectively, (o) and (p) subtracted MR and MN images from reference images, respectively, (q) and (r) unwrapped phase images, (s) and (t) refractive index profiles of MR and MN lasers, respectively, (u)–(w) concentration contours of C, IBB and THN, respectively, (x) filter mask to filter out one of the non-zero peaks, (y) temperature contour.

Image of FIG. 8.
FIG. 8.

Comparison between and this study unwrap function, (a) unwrap using 's unwrap function, (b) unwrap method used in this study.

Image of FIG. 9.
FIG. 9.

312 data points of refractive index versus time on MR laser.

Image of FIG. 10.
FIG. 10.

Refractive index difference between hot and cold walls versus time during isothermal, thermal, and diffusion conditions.

Image of FIG. 11.
FIG. 11.

Temperature difference between hot and cold sides during thermal time.

Image of FIG. 12.
FIG. 12.

Temperature variation between hot and cold walls of (a) Run7 and (b) Run12.

Image of FIG. 13.
FIG. 13.

Temperature distributions in the cavity at different times during thermal time, Run12 (a) after 1 s, (b) after 5 s, (c) after 41 s, and (d) after 133 s.

Image of FIG. 14.
FIG. 14.

Phase and phase difference distributions in the cavity at different times, Run12 (a) phase after 1 min, (b) phase after 6 h, and (c) phase difference of first and last phase.

Image of FIG. 15.
FIG. 15.

Separation between hot and cold sides during thermodiffusion time.

Image of FIG. 16.
FIG. 16.

THN concentration variation between hot and cold walls at various times, (a) Run7 and (b) Run12.

Image of FIG. 17.
FIG. 17.

IBB concentration variation between hot and cold walls at various times, (a) Run7 and (b) Run12.

Image of FIG. 18.
FIG. 18.

THN concentration profiles in the cavity at different times during diffusion time, Run12 (a) after 30 min, (b) after 75 min, (c) after 3.5 h, and (d) after 6 h.

Image of FIG. 19.
FIG. 19.

IBB concentration profiles in the cavity at different times during diffusion time, Run12 (a) after 30 min, (b) after 75 min, (c) after 3.5 h, and (d) after 6 h.

Image of FIG. 20.
FIG. 20.

Transient experimental separations of Run12, associated with best fitted curve.

Tables

Generic image for table
Table I.

Chemical properties of three components of SODI-DSC test mixtures.

Generic image for table
Table II.

Optical properties of the THN-IBB-C mixture measured at T = 298 K.

Generic image for table
Table III.

SODI-DSC Runs7 and 12 experimental results with 10 K temperature gradient onboard ISS.

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/content/aip/journal/jcp/138/20/10.1063/1.4802984
2013-05-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Measurement of the Soret coefficients for a ternary hydrocarbon mixture in low gravity environment
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/20/10.1063/1.4802984
10.1063/1.4802984
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