Visualization of bubble nucleation during nucleate pool boiling outside a vertical cylindrical heated surface was done for ammonia-water binary mixture in order to obtain a descriptive behavior of the boiling, which was directly compared with the measured heat transfer coefficient data at low pressure of 4–8 bar and at low mass fraction of 0 < x < 0.3 and at different heat flux. Still images taken with high speed camera are used to demonstrate the decrease in boiling heat transfer coefficient with increase in ammonia mass fraction. Jensen and Memmel model has better agreement with experimental bubble diameter. Further work is required to obtain quantitative information about bubble nucleation parameters. It is found that both Calus and Rice and Stephan–Koorner correlation can predict the experimental heat transfer coefficient values with a maximum deviation of ± 20%.

References

References
1.
Van Wijk
,
W. R.
,
Vos
,
A. S.
, and
Van Stralen
,
J. D.
, 1956, “
Heat Transfer to Boiling Binary Liquid Mixtures
,”
Chem. Eng. Sci.
,
5
, pp.
68
80
.
2.
Sternling
,
C. V.
, and
Tichacek
,
L. J.
, 1961, “
Heat Transfer Coefficients for Boiling Mixtures
,”
Chem. Eng. Sci.
,
16
, pp.
297
337
.
3.
Thome
,
R.
, 1978, “
Bubble Growth and Nucleate Pool Boiling in Liquid Nitrogen, Argon and Their Mixtures
,” Ph.D. thesis, Oxford University, UK.
4.
Thome
,
J. R.
, 1982, “
Latent and Sensible Heat Transfer Rates in Boiling of Binary Mixtures
,”
ASME J. Heat Transfer
,
104
, pp.
474
478
.
5.
Kline
,
S. J.
, and
McClintock
,
F. A.
, 1953, “
Describing Uncertainties in Single-Sample Experiments
,”
Mech. Eng.
,
75
, pp.
3
8
.
6.
Sathyabhama
,
A.
, and
Ashok Babu
,
T. P.
, 2011, “
Experimental Investigation in Pool Boiling Heat Transfer of Ammonia/Water Mixture and Heat Transfer Correlations
,”
Int. J. Heat Fluid Flow
,
32
, pp.
719
729
.
7.
Stephan
,
K.
, and
Korner
,
M.
, 1969, “
Calculation of Heat Transfer in Evaporating Binary Liquid Mixtures
,”
Chem.-Ing.-Tech.
,
41
(
7
), pp.
409
417
.
8.
Thome
,
J. R.
, and
Shakir
,
S.
, 1987, “
A New Correlation for Nucleate Pool Boiling of Aqueous Mixtures
,”
AIChE Symp. Ser.
,
83
(
257
), pp.
46
51
.
9.
Fujita
,
Y.
, and
Tsutsui
,
M.
, 1997, “
Heat Transfer in Nucleate Boiling of Binary Mixtures (Development of a Heat Transfer Correlation)
,”
JSME Int. J., Ser. B
,
40
, pp.
134
141
.
10.
Calus
,
W. F.
, and
Rice
,
P.
, 1972, “
Pool Boiling–Binary Mixtures
,”
Chem. Eng. Sci.
,
27
, pp.
1687
1697
.
11.
Mostinski
,
I. L.
, 1963, “
Application of the Rule of Corresponding States for Calculation of Heat Transfer and Critical Heat Flux
,”
Teploenergetika
,
10
(
4
), pp.
66
71
.
12.
Zhao
,
Y.
, and
Tsuruta
,
T.
, 2002, “
Prediction of Bubble Behavior in Subcooled Pool Boiling Based on Microlayer Model
,”
JSME Int. J., Ser. B
,
45
(
2
), pp.
346
354
.
13.
Fritz
,
W.
, 1935, “
Berechnung des maximalvolume von dampfblasen
,”
Phys. Z.
,
36
, pp.
379
388
.
14.
Cole
,
R.
, and
Shulman
,
H. L.
, 1966, “
Bubble Departure Diameters at Subatmospheric Pressures
,”
Chem. Eng. Prog.
,
62
, pp.
6
16
.
15.
Cole
,
R.
, 1967, “
Bubble Frequencies and Departure Volumes at Subatmospheric Pressures
,”
AIChE J.
,
13
, pp.
779
783
.
16.
Van Stralen
,
S. J. D.
, and
Zijl
,
W.
, 1978, “
Fundamental Developments in Bubble Dynamics
,”
Proceedings of the Sixth International Heat Transfer Conference
,
Toronto
, Vol.
6
, pp.
429
450
.
17.
Kutateladze
,
S.
, and
Gogonin
,
I.
, 1980, “
Growth Rate and Detachment Diameter of a Vapor Bubble in Free Convection Boiling of a Saturated Liquid
,”
High Temp.
,
17
, pp.
667
671
.
18.
Jensen
,
M. K.
, and
Memmel
,
G. J.
, 1986, “
Evaluation of Bubble Departure Diameter Correlations
,”
Proceedings of the Eighth International Heat Transfer Conference
, Vol.
4
. pp.
1907
1912
.
You do not currently have access to this content.