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Properties of Saturated Steam - SI Units
A Saturated Steam Table with steam properties as
specific volume, density, specific enthalpy and
specific entropy
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The steam table below list the properties of steam at
varying pressures and temperatures:
Specific Enthalpy of
Specific
Absolute
Specific Density
Entropy
Temperature
Liquid
Evaporation
Steam
pressure o
Volume - ρ of Steam
( C)
2
3
3
h
h
h
l
e
s
(kN/m )
(m /kg) (kg/m )
-s(kJ/kg) (kJ/kg)
(kJ/kg) (kJ/kgK)
0.8
3.8
160
0.00626 15.8
2493
2509 9.058
2.0
17.5
67.0
0.0149 73.5
2460
2534 8.725
5.0
32.9
28.2
0.0354 137.8 2424
2562 8.396
10.0
45.8
14.7
0.0682 191.8 2393
2585 8.151
20.0
60.1
7.65
0.131
251.5 2358
2610 7.909
28
67.5
5.58
0.179
282.7 2340
2623 7.793
35
72.7
4.53
0.221
304.3 2327
2632 7.717
45
78.7
3.58
0.279
329.6 2312
2642 7.631
55
83.7
2.96
0.338
350.6 2299
2650 7.562
65
88.0
2.53
0.395
368.6 2288
2657 7.506
75
91.8
2.22
0.450
384.5 2279
2663 7.457
85
95.2
1.97
0.507
398.6 2270
2668 7.415
95
98.2
1.78
0.563
411.5 2262
2673 7.377
100
99.6
1.69
0.590
417.5 2258
2675 7.360
101.33
100
1.67
0.598
419.1 2257
2676 7.355
110
102.3
1.55
0.646
428.8 2251
2680 7.328
130
107.1
1.33
0.755
449.2 2238
2687 7.271
150
111.4
1.16
0.863
467.1 2226
2698 7.223
170
115.2
1.03
0.970
483.2 2216
2699 7.181
190
118.6
0.929
1.08
497.8 2206
2704 7.144
220
123.3
0.810
1.23
517.6 2193
2711 7.095
260
280
320
360
400
440
480
500
550
600
650
700
750
800
850
900
950
1000
1050
1150
1250
1300
1500
1600
1800
2000
2100
2300
2400
2600
2700
2900
3000
3200
3400
3600
3800
4000
128.7
131.2
135.8
139.9
143.1
147.1
150.3
151.8
155.5
158.8
162.0
165.0
167.8
170.4
172.9
175.4
177.7
179.9
182.0
186.0
189.8
191.6
198.3
201.4
207.1
212.4
214.9
219.6
221.8
226.0
228.1
232.0
233.8
237.4
240.9
244.2
247.3
250.3
0.693
0.646
0.570
0.510
0.462
0.423
0.389
0.375
0.342
0.315
0.292
0.273
0.255
0.240
0.229
0.215
0.204
0.194
0.186
0.170
0.157
0.151
0.132
0.124
0.110
0.0995
0.0945
0.0868
0.0832
0.0769
0.0740
0.0689
0.0666
0.0624
0.0587
0.0554
0.0524
0.0497
1.44
1.55
1.75
1.96
2.16
2.36
2.57
2.67
2.92
3.175
3.425
3.66
3.915
4.16
4.41
4.65
4.90
5.15
5.39
5.89
6.38
6.62
7.59
8.03
9.07
10.01
10.54
11.52
12.02
13.01
13.52
14.52
15.00
16.02
17.04
18.06
19.08
21.00
540.9
551.4
570.9
588.5
604.7
619.6
633.5
640.1
655.8
670.4
684.1
697.1
709.3
720.9
732.0
742.6
752.8
762.6
772
790
807
815
845
859
885
909
920
942
952
972
981
1000
1008
1025
1042
1058
1073
1087
2177
2170
2157
2144
2133
2122
2112
2107
2096
2085
2075
2065
2056
2047
2038
2030
2021
2014
2006
1991
1977
1971
1945
1933
1910
1889
1878
1858
1849
1830
1821
1803
1794
1779
1760
1744
1728
1713
2718
2722
2728
2733
2738
2742
2746
2748
2752
2756
2759
2762
2765
2768
2770
2772
2774
2776
2778
2781
2784
2785
2790
2792
2795
2797
2798
2800
2800
2801
2802
2802
2802
2802
2802
2802
2801
2800
7.039
7.014
6.969
6.930
6.894
6.862
6.833
6.819
6.787
6.758
6.730
6.705
6.682
6.660
6.639
6.619
6.601
6.583
6.566
6.534
6.505
6.491
6.441
6.418
6.375
6.337
6.319
6.285
6.269
6.239
6.224
6.197
6.184
6.158
6.134
6.112
6.090
6.069
•
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Absolute Pressure = Gauge Pressure +
Atmospheric pressure.
Specific enthalpy or Sensible Heat is the
quantity of heat in 1 kg of water according
to the selected temperature.
Example - Boiling Water at 100oC and 0 bar
At atmospheric pressure - 0 bar gauge or absolute 101.33
kN/m2 - water boils at 100oC. 419 kJ of energy is required
to heat 1 kg of water from 0oC to the saturation
temperature 100�C.
Therefore, at 0 bar gauge (absolute 101.33 kN/m2) and
100oC - the specific enthalpy of water is 419 kJ/kg.
Another 2,257 kJ of energy is required to evaporate the 1
kg of water at 100oC to steam at 100oC. Therefore, at 0
bar gauge (absolute 101.33 kN/m2) - the specific enthalpy
of evaporation is 2,257 kJ/kg.
The total specific enthalpy of the steam at atmospheric
pressure and 100oC can be summarized as:
hs = 419 + 2,257
= 2,676 kJ/kg
Example - Boiling Water at 170oC and 7 bar
Steam at atmospheric pressure is of limited practical use.
It cannot be conveyed by its own pressure along a steam
pipe to the points of consumption.
At 7 bar gauge (absolute 800 kN/m2) - the saturation
temperature of water is 170oC. More heat energy is
required to raise the temperature to the saturation point at
7 bar gauge than needed for water at atmospheric
pressure. From the table a value of 720.9 kJ is needed to
raise 1 kg of water from 0oC to the saturation temperature
170oC.
The heat energy (enthalpy of evaporation) needed at 7
bar gauge to evaporate the water to steam is actually less
than the heat energy required at atmospheric pressure.
The specific enthalpy of evaporation decrease with steam
pressure increase. The evaporation heat is 2,047 kJ/kg
according the table.
Note! Because the specific volume of steam decreases
with increasing pressure, the amount of heat energy
transferred in the same volume actually increases with
steam pressure. In other words the same pipe may
transfer more energy with high pressure steam than with
low pressure steam.
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Related Topics
•
•
•
Flash Steam Flash steam generation;
fundamentals, energy recovery from flash
steam ..
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..
Steam and Condensate Steam &
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process technology. Without steam, food,
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Related Documents
•
•
•
•
Entropy of Superheated Steam A table
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typical consumers in different industries
•
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•
•
•
•
as bakeries, breweries, paper factories
etc.
Arithmetic and Logarithmic Mean
Temperature Difference Arithmetic Mean
Temperature Difference - AMTD - and
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Properties of Saturated Steam - Pressure
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properties as boiling point, specific
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Vapor and Steam An introduction to vapor
and steam
Water - Specific Heat Capacity at High
Temperature Specific heat capacity of
water at higher temperatures - in Imperial
units
Water - Specific Volume and Weight
Density Specific volume and weight
density of water at temperatures ranging
from 32 to 700 deg F, in Imperial Units
Water - Saturation Pressure and Specific
Weight Vapor pressure and specific
weight for water at temperatures from 32
to 212 deg F - in Imperial Units
Compressed Water Properties Specific
volume, enthalpy and entropy of
compressed water
Enthalpy of Wet Steam Wet steam,
dryness fraction and enthalpy
Specific Volume of Wet Steam Wet steam
an specific volume
Stress in a Steam Boiler Shell from Boiler
Pressure Calculate the stress in in a
steam boiler shell from pressure
Steam Pipe Pressure drop Calculator
Calculate pressure drop in steam
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