Table des matières Python

Propriétés thermodynamiques de l'eau saturée (liquide et vapeur)

1. Table de données

Les données suivantes sont extraites de [1].

Eau saturée
P (bar)T (celcius)Vl (m3/kg)Vg (m3/kg)Hl (kJ/kg)Hg (kJ/kg)Sl (kJ/K/kg)Sg (kJ/K/kg)
0.0428.960.00100434.8121.462554.40.42268.4746
0.0636.160.001006423.739151.532567.40.5218.3304
0.0841.510.001008418.103173.8825770.59268.2287
0.145.810.001010214.674191.832584.70.64938.1502
0.260.060.00101727.649251.42609.70.8327.9085
0.369.10.00102235.229289.232625.30.94397.7686
0.475.870.00102653.993317.582636.81.02597.67
0.581.330.001033.24340.492645.91.0917.5939
0.685.940.00103312.732359.862653.51.14537.532
0.789.950.0010362.365376.726601.19197.4797
0.893.50.0010382.087391.662665.81.23297.4346
0.996.710.0010411.869405.062670.91.26957.3949
199.630.00104321.694417.462675.51.30267.3594
1.5111.40.00105281.159467.112693.61.43367.2233
2120.20.00106050.8857504.72706.71.53017.1271
2.5127.40.00106720.7187535.372716.91.60727.0527
3133.60.00107320.6058561.472725.31.67186.9919
3.5138.90.00107860.5243584.332732.41.72756.9405
4143.60.00108360.4625604.742738.61.77666.8959
4.5147.90.00108820.414623.252743.91.82076.8565
5151.90.00109260.3749640.232748.71.86076.8212
6158.90.00110060.3157670.562756.81.93126.76
71650.0011080.2729697.222763.51.99226.708
8170.40.00111480.2404721.112769.12.04626.6628
9175.40.00112120.215742.832773.92.09466.6226
10179.90.00112730.1944762.812778.12.13876.5863
15198.30.00115390.1318844.842792.22.3156.4448
20212.40.00117670.09963908.792799.52.44746.3409
252240.00119730.07998962.112803.12.55476.2575
30233.90.00121650.066681008.42804.22.64576.1869
35242.60.00123470.057071049.82803.42.72536.1253
40250.40.00125220.049781087.32801.42.79646.0701
45257.50.00126930.044061126.92798.32.8616.0199
502640.00128590.039441154.22794.32.92025.9734
60275.60.00131870.032441213.42784.33.02675.8892
70285.90.00135130.0273712672772.13.12115.8133
80295.10.00138420.023521316.627583.20685.7432
90303.40.00141780.020481363.32742.13.28585.6772
100311.10.00145240.018031407.62724.73.35965.6141
110318.20.00148860.015991450.12705.63.42955.5527
120324.80.00152670.014261491.32684.93.49625.4924
130330.90.00156710.012781531.52662.23.56065.4323
140336.80.00161070.011491571.12637.63.62325.3717
150342.20.00165810.010341610.52610.53.68485.3098
160347.40.00171070.0093061650.12580.63.74615.2455
170352.40.00177020.0083641690.32547.23.80795.1777
180357.10.00183970.00748917322509.13.87155.1044
190361.50.00192430.0066571776.52464.53.93885.0228
200365.80.0020360.0058341826.32409.74.01394.9269
220.9374.10.0031550.0031552099.32099.34.42984.4298

Fichier de données : eau.txt.

import numpy
from matplotlib.pyplot import *

M = numpy.loadtxt("eau.txt",unpack=True)
P = M[0]
T = M[1]
vliq = M[2]
vgaz = M[3]
hliq = M[4]
hgaz = M[5]
sliq = M[6]
sgaz = M[7]
			

2. Diagramme pression-température

figure(figsize=(8,6))
plot(T,P)
xscale('log')
yscale('log')
xlabel('T (C)')
ylabel('P (bar)')
title("H2O")
grid()
            
figA.svgFigure pleine page

3. Diagramme de Clapeyron

figure(figsize=(8,6))
plot(vliq,P,'b')
plot(vgaz,P,'b')
xscale('log')
yscale('log')
xlabel('v (m^3/kg)')
ylabel('P (bar)')
title("H2O")
grid()
            
figB.svgFigure pleine page

4. Diagramme pression-enthalpie

figure(figsize=(8,6))
plot(hliq,P,'b')
plot(hgaz,P,'b')
yscale('log')
xlabel('h (kJ/kg)')
ylabel('P (bar)')
title("H2O")
axis([0,3500,1e-2,1e3])
grid()
            
figC.svgFigure pleine page

5. Diagramme température-entropie

figure(figsize=(8,6))
plot(sliq,T,'b')
plot(sgaz,T,'b')

xlabel('s (kJ/K/kg)')
ylabel('T (C)')
title("H2O")
grid()
            
figD.svgFigure pleine page
Références
[1]  M.J. Moran, H.N. Shapiro,  Fundamental of engineering thermodynamics,  (John Wiley sons, 1998)
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