In order to obtain stable latent functionally thermal fluids for heat transfer and heat storage, microencapsulated phase change material (MPCM) suspensions with binary propanol–water mixtures of different proportions as base fluid were formulated. The stability study finds the binary propanol–water mixtures, after having stood for 48 hr, with a density of 941 kg/m3 exhibit the best stability. The morphology and thermophysical properties of the 10–40 wt.% MPCM suspensions, such as diameter distribution, latent heat and heat capacity, rheology and viscosity, thermal conductivity, and thermal expansion coefficients, were studied experimentally. The influence of MPCM concentration and temperature on the thermophysical properties was analyzed as well.

References

References
1.
Dincer
,
I.
, and
Rosen
,
M. A.
,
2002
,
Thermal Energy Storage, Systems and Applications
,
Wiley
,
Chichester, UK
.
2.
Gil
,
A.
,
Medrano
,
M.
,
Martorell
,
I.
,
Lazaro
,
A.
,
Dolado
,
P.
,
Zalba
,
B.
, and
Cabeza
,
L. F.
,
2010
, “
State of the Art on High Temperature Thermal Energy Storage for Power Generation. Part 1—Concepts, Materials and Modellization
,”
Renewable Sustainable Energy Rev.
,
14
(
1
), pp.
31
55
.10.1016/j.rser.2009.07.035
3.
Medrano
,
M.
,
Gil
,
A.
,
Martorell
,
I.
,
Potau
,
X.
, and
Cabeza
,
L. F.
,
2010
, “
State of the Art on High-Temperature Thermal Energy Storage for Power Generation. Part 2—Case Studies
,”
Renewable Sustainable Energy Rev.
,
14
(
1
), pp.
56
72
.10.1016/j.rser.2009.07.036
4.
Zalba
,
B.
,
Mrin
,
J. M.
,
Cabeza
,
L. F.
, and
Mehling
,
H.
,
2003
, “
Review on Thermal Energy Storage With Phase Change: Materials, Heat Transfer Analysis and Applications
,”
Appl. Therm. Eng.
,
23
(
3
), pp.
251
283
.10.1016/S1359-4311(02)00192-8
5.
Charuyakorn
,
P.
,
Sengupta
,
S.
, and
Roy
,
S. K.
,
1991
, “
Forced Convection Heat Transfer in Microencapsulated Phase Change Material Slurries
,”
Int. J. Heat Mass Transfer
,
34
(
3
), pp.
819
833
.10.1016/0017-9310(91)90128-2
6.
Wang
,
L.
, and
Lin
,
G. P.
,
2012
, “
Experimental Study on the Convective Heat Transfer Behavior of Microencapsulated Phase Change Material Suspensions in Rectangular Tube of Small Aspect Ratio
,”
Heat Mass Transfer
,
48
(
1
), pp.
83
91
.10.1007/s00231-011-0844-2
7.
Hu
,
X. X.
, and
Zhang
,
Y. P.
,
2002
, “
Novel Insight and Numerical Analysis of Convective Heat Transfer Enhancement With Microencapsulated Phase Change Material Slurries: Laminar Flow in a Circular Tube With Constant Heat Flux
,”
Int. J. Heat Mass Transfer
,
45
(
15
), pp.
3163
3172
.10.1016/S0017-9310(02)00034-0
8.
Huang
,
L.
,
Petermann
,
M.
, and
Doetsch
,
C.
,
2009
, “
Evaluation of Paraffin/Water Emulsion as a Phase Change Slurry for Cooling Applications
,”
Energy
,
34
(
9
), pp.
1145
1155
.10.1016/j.energy.2009.03.016
9.
Schalbart
,
P.
,
Kawaji
,
M.
, and
Fumoto
,
K.
,
2010
, “
Formation of Tetradecane Nanoemulsion by Low-Energy Emulsification Methods
,”
Int. J. Refrig.
,
33
(
8
), pp.
1612
1624
.10.1016/j.ijrefrig.2010.09.002
10.
Li
,
Y. K.
,
Ma
,
S. D.
, and
Tang
,
G. Y.
,
2010
, “
Research on Physical Properties and Stability of Phase Change Microemulsion
,”
J. Funct. Mater.
,
10
(
41
), pp.
1813
1815
(in Chinese).
11.
Xu
,
H.
,
Yang
,
R.
,
Zhang
,
Y. P.
,
Huang
,
Z.
,
Lin
,
J.
, and
Wang
,
X.
,
2005
, “
Thermal Physical Properties and Key Influence Factors of Phase Change Emulsion
,”
Chin. Sci. Bull.
,
50
(
1
), pp.
92
96
(in Chinese).10.1360/03te0123
12.
Vand
,
V.
,
1945
, “
Theory of Viscosity of Concentrated Suspensions
,”
Nature
,
155
(
3934
), pp.
364
365
.10.1038/155364b0
13.
Mulligan
,
J. C.
,
Colvin
,
D. P.
, and
Bryan
,
Y. G.
,
1996
, “
Microencapsulated Phase Change Material Suspensions for Heat Transfer in Spacecraft Thermal Systems
,”
J. Spacecr. Rockets
,
33
(
2
), pp.
278
284
.10.2514/3.26753
14.
Yamagishi
,
Y.
,
Takeuchi
,
H.
,
Pyatenko
,
A. T.
, and
Kayukawa
,
N.
,
1999
, “
Characteristics of Microencapsulated PCM Slurry as a Heat Transfer Fluid
,”
AIChE J.
,
45
(
4
), pp.
696
707
.10.1002/aic.690450405
15.
Wang
,
X. C.
,
Niu
,
J. L.
,
Li
,
Y.
,
Wang
,
X.
,
Chen
,
J. B.
,
Zeng
,
R. L.
,
Song
,
Q. W.
, and
Zhang
,
Y. P.
,
2007
, “
Flow and Heat Transfer Behaviors of Phase Change Material Slurries in a Horizontal Circular Tube
,”
Int. J. Heat Mass Transfer
,
50
(
13–14
), pp.
2480
2491
.10.1016/j.ijheatmasstransfer.2006.12.024
16.
Garnett
,
J. C. M.
,
1906
, “
Colours in Metal Glasses, in Metallic Films, and in Metallic Solutions
,”
Philos. Trans. R. Soc. London, Ser. A
,
205
(
359–371
), pp.
237
288
.10.1098/rsta.1906.0007
17.
Ukrainczyk
,
N.
,
Kurajica
,
S.
, and
Sipusic
,
J.
,
2010
, “
Thermophysical Comparison of Five Commercial Paraffin Waxes as Latent Heat Storage Materials
,”
Chem. Biochem. Eng.
,
24
(
2
), pp.
129
137
.
18.
Zheng
,
X. H.
,
Qiu
,
L.
,
Zhu
,
J.
,
Su
,
G. P.
, and
Tang
,
D. W.
,
2012
, “
Thermal Conductivity Measurement of Phase Change Materials Microencapsules
,”
J. Eng. Thermophys.
,
33
(
3
), pp.
454
456
(in Chinese).
You do not currently have access to this content.