9 TEWI Assessment of Conventional and Solar Powered Cooling Systems
149
Table 9.1
Properties of the selected refrigerants
R22
R32
R134a
R404A
R410A
R717
R718
Methanol
Chemical
formula
(Kohler et al.
2016)
CHClF
2
CH
2 F
2
CH
2 FCF
3
R125 (44%)
R134a (4%)
R143a (52%)
R32 (50%)
R125 (50%)
NH
3
H
2 O
CH
3 OH
GWP
(kg–CO
2 eq.)
1760
(Mota-Babiloni
et al. 2017)
677 (Stocker
et al. 2019)
1300 (Stocker
et al. 2019)
3922 (Vaitkus
and Dagilis
2017)
2088
(Mota-Babiloni
et al. 2017)
0
0
0
ODP
0.055 (Deveciog
and Oruç 2017)
0
0
0
0
0
0
0
Critical
pressure
(MPa)
(Lemmon
et al. 2018)
4.99
5.78
4.06
3.73
4.9
1.14
2.21
8.10
Critical
temperature
(°C)
(Lemmon
et al. 2018)
96.15
78.11
101.06
72.12
71.34
132.41
373.95 239.45
Normal
boiling point
(°C)
(Lemmon
et al. 2018)
– 40.81
– 51.65
– 26.07
– 46.22
– 51.44
– 33.32
99.97
64.48
(continued)