This study experimentally investigated acoustically driven gas-mixture separation. Acoustic wave propagation in a narrow tube can induce gas-mixture separation. A binary mixture of helium and argon was used as the gas mixture. The pressure amplitude of the acoustic wave and initial molar fraction of the helium gas were investigated. The obtained experimental data indicated that the molar fraction initially increased with increasing pressure amplitude, whereas the saturated molar fraction did not show a clear dependence on the pressure. Although the degree of separation was smaller with purer helium, gas-mixture separation occurred under all conditions within the experimental range.
REFERENCES
1.
Atkins
,
B.
,
Bastick
,
R.
, and
Ibbs
,
T.
(1939
). “
Thermal diffusion in mixtures of the inert gases
,” Proc. R. Soc. London, Ser. A: Math. Phys. Sci.
172
(948
), 142
–158
.2.
Biwa
,
T.
,
Tashiro
,
Y.
,
Mizutani
,
U.
,
Kozuka
,
M.
, and
Yazaki
,
T.
(2004
). “
Experimental demonstration of thermoacoustic energy conversion in a resonator
,” Phys. Rev. E
69
(6
), 066304
.3.
Geller
,
D.
, and
Swift
,
G.
(2002a
). “
Saturation of thermoacoustic mixture separation
,” J. Acoust. Soc. Am.
111
(4
), 1675
–1684
.4.
Geller
,
D.
, and
Swift
,
G.
(2002b
). “
Thermodynamic efficiency of thermoacoustic mixture separation
,” J. Acoust. Soc. Am.
112
(2
), 504
–510
.5.
Geller
,
D.
, and
Swift
,
G.
(2004
). “
Thermoacoustic enrichment of the isotopes of neon
,” J. Acoust. Soc. Am.
115
(5
), 2059
–2070
.6.
Geller
,
D.
, and
Swift
,
G.
(2009
). “
Thermoacoustic mixture separation with an axial temperature gradient
,” J. Acoust. Soc. Am.
125
(5
), 2937
–2945
.7.
Ohmi
,
M.
, and
Iguchi
,
M.
(1982
). “
Critical Reynolds number in an oscillating pipe flow
,” Bull. Jpn. Soc. Mech. Eng.
25
(200
), 165
–172
.8.
Platten
,
J. K.
(2006
). “
The Soret effect: A review of recent experimental results
,” J. Appl. Mech.
73
(5
), 5
–15
.9.
Rahman
,
M.
, and
Saghir
,
M.
(2014
). “
Thermodiffusion or Soret effect: Historical review
,” Int. J. Heat Mass Transfer
73
, 693
–705
.10.
Spoor
,
P.
, and
Swift
,
G.
(2000
). “
Thermoacoustic separation of a He-Ar mixture
,” Phys. Rev. Lett.
85
(8
), 1646
–1649
.11.
Swift
,
G. W.
(2003
). Thermoacoustics: A Unifying Perspective for Some Engines and Refrigerators
(
Springer
,
New York
).12.
Swift
,
G. W.
, and
Spoor
,
P. S.
(1999
). “
Thermal diffusion and mixture separation in the acoustic boundary layer
,” J. Acoust. Soc. Am.
106
(4
), 1794
–1800
.13.
Ueda
,
Y.
,
Yonemitsu
,
S.
,
Ohashi
,
K.
, and
Okamoto
,
T.
(2020
). “
Measurement and empirical evaluation of acoustic loss in tube with abrupt area change
,” J. Acoust. Soc. Am.
147
(1
), 364
–370
.14.
Ward
,
B.
,
Clark
,
J.
, and
Swift
,
G.
(2021
). “
DeltaEC: Design environment for low-amplitude thermoacoustic energy conversion
,” https://www.lanl.gov/org/ddste/aldps/materials-physics-applications/condensed-matter-magnet-science/thermoacoustics/computer-codes.php (Last viewed March 6, 2023).15.
Weltsch
,
O.
,
Offner
,
A.
,
Liberzon
,
D.
, and
Ramon
,
G. Z.
(2017
). “
Adsorption-mediated mass streaming in a standing acoustic wave
,” Phys. Rev. Lett.
118
(24
), 244301
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