eCO2Boost XS 3
15
11.4. CO
2
main properties
Pressure as function of evaporating temperature
P-H diagram of R744 (CO
2
)
Point
Temperature
Relative
pressure
Absolute
pressure
Densité
Liquide
Liquid
density
Liquid
enthalpy
Steam
enthalpy
Liquid
entropy
Steam
entropy
(C)
(MpaG)
(MPa)
(kg/m
3
)
(kg/m
3
)
(kJ/kg)
(kJ/kg)
(kJ/kg-K)
(kJ/kg-K)
1
-35
1,1
1,2024
1096,4
31,216
123,05
436,23
0,70794
2,023
2
-34
1,1
1,2452
1092,4
32,326
125,1
436,37
0,71634
2,018
3
-33
1,2
1,2891
1088,3
33,469
127,15
436,51
0,72474
2,0129
4
-32
1,2
1,3342
1084,1
34,644
129,2
436,62
0,73311
2,0079
5
-31
1,3
1,3804
1079,9
35,854
131,27
436,73
0,74148
2,0029
6
-30
1,3
1,4278
1075,7
37,098
133,34
436,82
0,74982
1,998
7
-29
1,4
1,4763
1071,5
38,378
135,41
436,9
0,75816
1,993
8
-28
1,4
1,5261
1067,2
39,696
137,5
436,96
0,76649
1,988
9
-27
1,5
1,577
1062,9
41,051
139,59
437,01
0,77481
1,9831
10
-26
1,5
1,6293
1058,6
42,445
141,69
437,04
0,78311
1,9781
11
-25
1,6
1,6827
1054,2
43,88
143,79
437,06
0,79141
1,9732
12
-24
1,6
1,7375
1049,8
45,356
145,91
437,06
0,79971
1,9683
13
-23
1,7
1,7935
1045,3
46,875
148,03
437,04
0,80799
1,9633
14
-22
1,8
1,8509
1040,8
48,437
150,16
437,01
0,81627
1,9584
15
-21
1,8
1,9096
1036,3
50,045
152,3
436,96
0,82455
1,9535
16
-20
1,9
1,9696
1031,7
51,7
154,45
436,89
0,83283
1,9485
17
-19
1,9
2,031
1027
53,402
156,61
436,81
0,8411
1,9436
18
-18
2,0
2,0938
1022,3
55,155
158,77
436,7
0,84937
1,9386
19
-17
2,1
2,1581
1017,6
56,959
160,95
436,58
0,85765
1,9337
20
-16
2,1
2,2237
1012,8
58,816
163,14
436,44
0,86593
1,9287
21
-15
2,2
2,2908
1008
60,728
165,34
436,27
0,87421
1,9237
22
-14
2,3
2,3593
1003,1
62,697
167,55
436,09
0,88249
1,9187
23
-13
2,3
2,4294
998,14
64,725
169,78
435,89
0,89078
1,9137
24
-12
2,4
2,501
993,13
66,814
172,01
435,66
0,89908
1,9086
25
-11
2,5
2,574
988,06
68,967
174,26
435,41
0,90739
1,9036
26
-10
2,5
2,6487
982,93
71,185
176,52
435,14
0,91571
1,8985
27
-9
2,6
2,7249
977,73
73,471
178,8
434,84
0,92405
1,8934
28
-8
2,7
2,8027
972,46
75,829
181,09
434,51
0,9324
1,8882
29
-7
2,8
2,8821
967,12
78,261
183,39
434,17
0,94076
1,883
30
-6
2,9
2,9632
961,7
80,77
185,71
433,79
0,94915
1,8778
31
-5
2,9
3,0459
956,21
83,359
188,05
433,38
0,95756
1,8725
32
-4
3,0
3,1303
950,63
86,032
190,4
432,95
0,96599
1,8672
33
-3
3,1
3,2164
944,97
88,794
192,77
432,48
0,97444
1,8618
34
-2
3,2
3,3042
939,22
91,647
195,16
431,99
0,98293
1,8563
35
-1
3,3
3,3938
933,38
94,596
197,57
431,46
0,99145
1,8509
36
0
3,4
3,4851
927,43
97,647
200
430,89
1
1,8453
37
1
3,5
3,5783
921,38
100,8
202,45
430,29
1,0086
1,8397
38
2
3,6
3,6733
915,23
104,07
204,93
429,65
1,0172
1,834
39
3
3,7
3,7701
908,95
107,46
207,43
428,97
1,0259
1,8282
40
4
3,8
3,8688
902,56
110,98
209,95
428,25
1,0346
1,8223
41
5
3,9
3,9695
896,03
114,62
212,5
427,48
1,0434
1,8163
42
6
4,0
4,072
889,36
118,41
215,08
426,67
1,0523
1,8102
43
7
4,1
4,1765
882,55
122,34
217,69
425,81
1,0612
1,8041
44
8
4,2
4,2831
875,58
126,44
220,34
424,89
1,0702
1,7977
45
9
4,3
4,3916
868,44
130,71
223,01
423,92
1,0792
1,7913
46
10
4,4
4,5022
861,12
135,16
225,73
422,88
1,0884
1,7847
12. First level of maintenance
1.
Regular inspections
2.
In case of dirt inside the CDU, clean the outdoor heat exchangers with soft brush or vacuum cleaner.
3.
Water can be used in case of clogged heat exchanger.
(Noted: CDU operation should be stopped when using water cleaning for heat exchanger)
