In a special boiling cell, vapor bubbles are generated at single nucleation sites on top of a 20μm thick stainless steel heating foil. An infrared camera captures the rear side of the heating foil for analyzing the temperature distribution. The bubble shape is recorded through side windows with a high-speed camera. Global measurements were conducted, with the pure fluids FC-84 and FC-3284 and with its binary mixtures of 0.25, 0.5, and 0.75mole fraction. The heat transfer coefficient (HTC) in a binary mixture is less than the HTC in either of the single component fluid alone. Applying the correlation of Schlünder showed good agreement with the measurements (1982, “Über den Wärmeübergang bei der Blasenverdampfung von Gemischen,” Verfahrenstechnik, 16(9), pp. 692–698). Furthermore, local measurements were arranged with high lateral and temporal resolution for single bubble events. The wall heat flux was computed and analyzed, especially at the three-phase-contact line between liquid, vapor, and heated wall. The bubble volume and the vapor production rate were also investigated. For pure fluids, up to 50–60% of the latent heat flows through the three-phase-contact region. For mixtures, this ratio is clearly reduced and is about 35%.

1.
Bonilla
,
C.
, and
Perry
,
C.
, 1941, “
Heat Transmission to Boiling Binary Mixtures
,”
Trans. Am. Inst. Chem. Eng.
0096-7408,
37
, pp.
662
669
.
2.
Baehr
,
H.
, and
Stephan
,
K.
, 2006,
Wärme- und Stoffüberragung
,
5th ed.
,
Springer-Verlag
,
Berlin
.
3.
Schlünder
,
E.
, 1982, “
Über den Wärmeübergang bei der Blasenverdampfung von Gemischen
,”
Verfahrenstechnik
0175-5315,
16
(
9
), pp.
692
698
.
4.
Schlindwein
,
A. R.
,
Martin
,
F. O.
, Jr.
,
Misale
,
M.
, and
Passos
,
J. C.
, 2006, “
Nucleate Boiling of FC-87/FC-72 Zeotropic Mixtures on a Horizontal Copper Disc
,”
ECI International Conference on Boiling Heat Transfer
.
5.
Stephan
,
P.
, 2007, “
Transient Transport Phenomena During Bubble Growth, Detachment and Rise in a Nucleate Boiling Process
,”
Fourth International Berlin Workshop on Transport Phenomena With Moving Boundaries
.
6.
Wayner
,
P.
,
Kao
,
Y.
, and
Croix
,
L. L.
, 1976, “
The Interline Heat Transfer Coefficient on an Evaporating Wetting Film
,”
Int. J. Heat Mass Transfer
0017-9310,
19
, pp.
487
492
.
7.
Dhir
,
V. K.
, 2000, “
Numerical Simulations of Pool-Boiling Heat Transfer
,”
AIChE J.
0001-1541,
47
, pp.
813
834
.
8.
Fujita
,
Y.
, and
Bai
,
Q.
, 1998, “
Numerical Simulation of the Growth for an Isolated Bubble in Nucleate Boiling
,”
Proceedings of the 11th Heat Transfer Conference
,
J. S.
Lee
, ed., pp.
437
442
.
9.
Stephan
,
P.
, and
Hammer
,
J.
, 1994, “
A New Model for Nucleate Boiling Heat Transfer
,”
Heat Mass Transfer
0947-7411,
30
, pp.
119
125
.
10.
Fuchs
,
T.
,
Kern
,
J.
, and
Stephan
,
P.
, 2006, “
A Transient Nucleate Boiling Model Including Microscale Effects and Wall Heat Transfer
,”
ASME J. Heat Transfer
0022-1481,
128
, pp.
1257
1265
.
11.
Kern
,
J.
, and
Stephan
,
P.
, 2003, “
Theoretical Model for Nucleate Boiling Heat and Mass Transfer of Binary Mixtures
,”
ASME J. Heat Transfer
0022-1481,
125
, pp.
1106
1115
.
12.
Kenning
,
D.
, 1991, “
Wall Temperature Patterns in Nucleate Boiling
,”
Int. J. Heat Mass Transfer
0017-9310,
35
, pp.
73
86
.
13.
Kenning
,
D.
, and
Yan
,
Y.
, 1996, “
Pool Boiling Heat Transfer on a Thin Plate: Features Revealed by Liquid Crystal Thermography
,”
Int. J. Heat Mass Transfer
0017-9310,
39
, pp.
3117
3137
.
14.
Kenning
,
D.
,
Kono
,
T.
, and
Wienecke
,
M.
, 2001, “
Investigation of Boiling Heat Transfer by Liquid Crystal Thermography
,”
Exp. Therm. Fluid Sci.
0894-1777,
25
, pp.
219
229
.
15.
Shoji
,
M.
,
Zhang
,
L.
, and
Chatpun
,
S.
, 2005, “
Nucleation Site Interaction in Pool Nucleate Boiling—Serial Experiments Using Artificial Boiling Surfaces
,”
Sixth World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics
.
16.
Hoehmann
,
C.
, and
Stephan
,
P.
, 2002, “
Microscale Temperature Measurement at an Evaporating Liquid Meniscus
,”
Exp. Therm. Fluid Sci.
0894-1777,
26
, pp.
157
162
.
17.
Wagner
,
E.
,
Sodtke
,
C.
,
Schweizer
,
N.
, and
Stephan
,
P.
, 2006, “
Experimental Study of Nucleate Boiling Heat Transfer Under Low Gravity Conditions Using TLCs for High Resolution Temperature Measurements
,”
Heat Mass Transfer
0947-7411,
42
, pp.
875
883
.
18.
Golobic
,
I.
,
Petkovsek
,
J.
,
Baselj
,
M.
,
Papez
,
A.
, and
Kenning
,
D.
, 2006, “
Experimental Determination of Transient Wall Temperature Distributions Close to Growing Vapor Bubbles
,”
ECI International Conference on Boiling Heat Transfer
.
19.
Wagner
,
E.
,
Sprenger
,
A.
,
Stephan
,
P.
,
Koeppen
,
O.
,
Ziegler
,
F.
, and
Auracher
,
H.
, 2007, “
Nucleate Boiling at Single Artificial Cavities: Bubble Dynamics and Local Temperature Measurements
,”
Sixth International Conference on Multiphase Flow ICMF 2007
.
20.
Wagner
,
E.
,
Stephan
,
P.
,
Koeppen
,
O.
, and
Auracher
,
H.
, 2007, “
High Resolution Temperature Measurements at Moving Vapor/Liquid and Vapor/Liquid/Solid Interfaces During Bubble Growth in Nucleate Boiling
,”
Fourth International Berlin Workshop on Transport Phenomena With Moving Boundaries
.
21.
Henry
,
C.
,
Kim
,
J.
, and
McQuillen
,
J.
, 2006, “
Dissolved Gas Effects on Thermocapillary Convection During Boiling in Reduced Gravity Environments
,”
Heat Mass Transfer
0947-7411,
42
, pp.
919
928
.
22.
You
,
S.
,
Somon
,
T.
,
Bar-Cohem
,
A.
, and
Hong
,
Y.
, 1995, “
Effects of Dissolved Gas Content on Pool Boiling of a Highly Wetting Fluid
,”
ASME J. Heat Transfer
0022-1481,
117
, pp.
687
692
.
23.
Dunn
,
P.
, and
Reay
,
D.
, 1994,
Heat Pipes
,
4th ed.
,
Elsevier Science Ltd.
,
Oxford, England
.
24.
Gorenflo
,
D.
,
Goetz
,
J.
, and
Bier
,
K.
, 1982, “
Vorschlag fr eine Standard-Apparatur zur Messung des Wärmeübergangs beim Blasensieden
,”
Waerme- Stoffuebertrag.
0042-9929,
16
, pp.
69
78
.
25.
Alifanov
,
O.
, 1994,
Inverse Heat Transfer Problems
,
Springer-Verlag
,
Berlin
.
26.
2006, “
Informationsstelle Edelstahl Rostfrei—Eigenschaften
,” www.edelstahlrostfrei.dewww.edelstahlrostfrei.de
27.
Schoene
,
A.
, 1997,
Messtechnik
,
2nd ed.
,
Springer-Verlag
,
Berlin
.
28.
2002,
VDI-Wärmeatlas: Berechnungsblätter für den Wärmeübergang
,
10th ed.
Springer-Verlag
,
Berlin
.
29.
Bednar
,
W.
, and
Bier
,
K.
, 1994,
Wärmebergang beim Blasensieden von binren Kohlenwasserstoffgemischen
,
VDI
,
Düsseldorf
.
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