New experimental data on the thermal conductivity and the viscosity of low-GWP refrigerants such as HFOs are reported in order to contribute to the development of low-GWP refrigeration/heat pump systems. Accurate data on thermodynamic and transport properties are indispensable to design and to manufacture the systems with high efficiency. However, there are only limited data on the properties. In this study, the thermal conductivity and viscosity of low-GWP refrigerants were measured by a transient hot-wire method and tandem capillary tubes method respectively with wide temperature and pressure range covered from subcooled liquid to superheated vapor region.

1.
G.
Myhre
and
D.
Shindell
, “
Anthropogenic and natural radiative forcing (Chapter 8
)”,
Clinate Change 2013, the physical science basis, IPCC 5ᵗʰ assessment report (working group I
) (
Stockholm
,
2013
), pp.
659
740
.
2.
K.
Tanaka
and
Y.
Higashi
,
Int. J. Refrig.
33
(
3
),
474
(
2010
).
3.
K.
Tanaka
,
G.
Takahashi
and
Y.
Higashi
,
J. Chem. Eng. Data
55
(
6
),
2267
(
2010
).
4.
M.O.
McLinden
,
M.
Thol
M. and
E.W.
Lemmon
,
Proc. 13th Int. Refrigeration and Air Conditioning Conference at Purdue
(
2010
).
5.
E.W.
Lemmon
,
M.L.
Huber
and
M.O.
McLinden
,
NIST Standard Reference Database 23-Version 9.0
(
2010
).
6.
Y.
Higashi
,
S.
Hayasaka
and
S.
Ogiya
S.,
Proc. 4ᵗʰ IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants, TP-018
,
Delft, The Netherlands
(
2013
).
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