II.5.. Conditions de saturation :
II.5.1.. Point de bulle: :
Le point de bulle est calculéàa partir de
lacorrélationn proposée par El-Sayed et Tribus
[28] :
7? ? 10 ? ? ? ? ? ?
i
? P ?
,
= - ? +
? ? ( ) ln
i c m
T T (II.59)
eb c m
, ? C x
C i ij ? ? ? ? ? ?
i = 1 ? ? P
j = 1 ? ? ? ? ?
? ? ? j
|
4
avec H 2 O -? ( a x
i
T T
=
c m
, c i i
|
)(II.60))
|
i=11
|
? 8 ?
i
( )
? i
? b x ?
H O
2 i = 1
P c m P c
= e ? ? 1,
oùuTc,m, : est latempératuree critique
du mélangeNH3-H2O0 ;
Pc,m : est la pression
critique du mélangeNH3-H2O..
|
(II.61)
|
II.5.2.. Point de rosée :
Le point de rosée est calculéàa partir de
lacorrélationn proposée par EL-Sayed et Tribus
[28] :
i
6 ? ? ? 4 ? ? ?
? ? ?
j P ?
c m
,
T T
= - ? +
? ? [ ln(1.0001 ) ln
] ? ? (II.62)
d c m
, ? d A - x
i ij ? ? ?
? P
i = 1 ? ? j = 1 ? ? ? ?
? P? ? ?
J
Leséquationss(II.59.60.61.62)) la pression en [psi] et
latempératuree en[degrée F].
Les coefficients pour leséquationss(II.59.60.61.62))
sontindiquéss dans le tableau(II.3)) [27].
|
i
|
ai
|
bi
|
Ci
|
di
|
|
1
|
205.0009
|
0.368105523897
|
153.634521459
|
153.17055346
|
|
2
|
280.930556
|
- 3.6679548875
|
- 13.0305543892
|
- 11.7705687461
|
|
3
|
-317.0130009
|
46.6000470809
|
- 1.14845282991
|
- 1.78126355957
|
|
4
|
263.194444
|
-262.921061996
|
0.550358094447
|
0.647385455059
|
|
5
|
|
732.99536936
|
- 0.0753450148427
|
-0.0719950751898
|
|
6
|
|
- 1076.0613489
|
0.0048111668267
|
0.00285423950706
|
|
Aij
|
j
|
1
|
2
|
3
|
4
|
|
i
|
|
|
|
|
|
|
1
|
194.793913463
|
74.236124188
|
9.84103819552
|
0.436843852745
|
|
2
|
- 74.3508283362
|
-33.2941879809
|
-4.78866918581
|
-0.225416733476
|
|
3
|
13.0175447367
|
6.1586564117
|
0.789740337141
|
0.0321510834958
|
|
4
|
-0.90857587517
|
-0.356752691147
|
0.0238067275502
|
0.00495593933952
|
|
5
|
-0.00071863574153
|
-0.0251026383533
|
-0.0191664613304
|
-0.0017014253867
|
|
6
|
0.00195441702983
|
0.00280533349937
|
0.0013899436563
|
0.000116422611616
|
|
C ij
|
i
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
|
j
|
|
|
|
|
|
|
|
|
|
1
|
-462.460321366
|
421.443122208
|
-248.783804168
|
126.965580728
|
-33.5343446156
|
3.97454953787
|
-0.170806170177
|
|
2
|
23739.9986309
|
- 14560.354925
|
4807.07241098
|
- 2090.45270574
|
601.878586689
|
- 77.026846469
|
3.48182859299
|
|
3
|
- 194504.35292
|
53051.4495633
|
13565.1003309
|
1993.17101166
|
-3064.82070658
|
541.19105807
|
- 27.7957587743
|
|
4
|
639383.528867
|
382763.793582
|
- 466407.780832
|
100706.510396
|
71.7954752052
|
- 1696.60270972
|
113.762064546
|
|
5
|
- 523748.057636
|
- 3.58358986875E+6
|
2.82708344764E+6
|
- 687388.808612
|
51780.666659
|
1713.45942707
|
- 258.750496922
|
|
6
|
-2.32827147551E+6
|
1.22432653815E+7
|
-8.46971515799E+6
|
2.13241246959E+6
|
-209714.899856
|
4019.01019872
|
311.002585218
|
|
7
|
7.5624I853499E+6
|
-2.23079700156E+7
|
1.4459588896E+7
|
-3.69919965914E+6
|
405011. 985355
|
- 14844.7928004
|
- 123.917993454
|
|
8
|
- 9.66829589504E+6
|
2.28966568499E+7
|
-1.42810875331E+7
|
3.68836522546E+6
|
-428310.461566
|
19481.0094551
|
- 123.480627492
|
|
9
|
5.92208187086E+6
|
- 1.24833248091E+7
|
7.59640359678E+6
|
- 1.97512239296E+6
|
238153.698326
|
-12107.0794501
|
154.375042114
|
|
10
|
- 1.43240552125E+6
|
2.81331171633E+6
|
- 1.68400264482E+6
|
440201.446068
|
- 54497.0973336
|
2966.92804386
|
-48.5083828701
|
|
7
|
|
797.948078048
|
-0.000120433757177
|
|
|
8
|
|
- 235.903904222
|
|
|
Tableau II.3. Les coefficients pour les
équations (II.59.60.61.62) [27]. II.6.
Propriétés de transport de la solution NH3-H2O [29]
:
| 
