Properes of Saturated Steam - Pressure in Bar

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Properties of Saturated Steam - Pressure in Bar

The Saturated Steam Table with properties as boiling point, specific volume, density,
specific enthalpy, specific heat and latent heat of vaporization
Specific enthalpy Specific enthalpy
Specific
Density
Absolute Boiling
of liquid water
of steam
volume
(steam)
pressure point
(sensible heat)
(total heat)
(steam)

Latent heat of
evaporization

Specific
heat

(bar)

(oC)

(m3/kg) (kg/m3) (kJ/kg) (kcal/kg) (kJ/kg) (kcal/kg) (kJ/kg) (kcal/kg)

(kJ/kg
K)

0.02

17.51

67.006

0.015

73.45

17.54

2533.64 605.15 2460.19 587.61

1.8644

0.03

24.10

45.667

0.022

101.00

24.12

2545.64 608.02 2444.65 583.89

1.8694

0.04

28.98

34.802

0.029

121.41

29.00

2554.51 610.13 2433.10 581.14

1.8736

0.05

32.90

28.194

0.035

137.77

32.91

2561.59 611.83 2423.82 578.92

1.8774

0.06

36.18

23.741

0.042

151.50

36.19

2567.51 613.24 2416.01 577.05

1.8808

0.07

39.02

20.531

0.049

163.38

39.02

2572.62 614.46 2409.24 575.44

1.8840

0.08

41.53

18.105

0.055

173.87

41.53

2577.11 615.53 2403.25 574.01

1.8871

0.09

43.79

16.204

0.062

183.28

43.78

2581.14 616.49 2397.85 572.72

1.8899

0.1

45.83

14.675

0.068

191.84

45.82

2584.78 617.36 2392.94 571.54

1.8927

0.2

60.09

7.650

0.131

251.46

60.06

2609.86 623.35 2358.40 563.30

1.9156

0.3

69.13

5.229

0.191

289.31

69.10

2625.43 627.07 2336.13 557.97

1.9343

0.4

75.89

3.993

0.250

317.65

75.87

2636.88 629.81 2319.23 553.94

1.9506

0.5

81.35

3.240

0.309

340.57

81.34

2645.99 631.98 2305.42 550.64

1.9654

0.6

85.95

2.732

0.366

359.93

85.97

2653.57 633.79 2293.64 547.83

1.9790

0.7

89.96

2.365

0.423

376.77

89.99

2660.07 635.35 2283.30 545.36

1.9919

0.8

93.51

2.087

0.479

391.73

93.56

2665.77 636.71 2274.05 543.15

2.0040

0.9

96.71

1.869

0.535

405.21

96.78

2670.85 637.92 2265.65 541.14

2.0156

99.63

1.694

0.590

417.51

99.72

2675.43 639.02 2257.92 539.30

2.0267

1.1

102.32

1.549

0.645

428.84

102.43 2679.61 640.01 2250.76 537.59

2.0373

1.2

104.81

1.428

0.700

439.36

104.94 2683.44 640.93 2244.08 535.99

2.0476

1.3

107.13

1.325

0.755

449.19

107.29 2686.98 641.77 2237.79 534.49

2.0576

1.4

109.32

1.236

0.809

458.42

109.49 2690.28 642.56 2231.86 533.07

2.0673

1.5

111.37

1.159

0.863

467.13

111.57

2693.36 643.30 2226.23 531.73

2.0768

1.5

111.37

1.159

0.863

467.13

111.57

2693.36 643.30 2226.23 531.73

2.0768

1.6

113.32

1.091

0.916

475.38

113.54 2696.25 643.99 2220.87 530.45

2.0860

1.7

115.17

1.031

0.970

483.22

115.42 2698.97 644.64 2215.75 529.22

2.0950

1.8

116.93

0.977

1.023

490.70

117.20 2701.54 645.25 2210.84 528.05

2.1037

1.9

118.62

0.929

1.076

497.85

118.91 2703.98 645.83 2206.13 526.92

2.1124

120.23

0.885

1.129

504.71

120.55 2706.29 646.39 2201.59 525.84

2.1208

2.2

123.27

0.810

1.235

517.63

123.63 2710.60 647.42 2192.98 523.78

2.1372

2.4

126.09

0.746

1.340

529.64

126.50 2714.55 648.36 2184.91 521.86

2.1531

2.6

128.73

0.693

1.444

540.88

129.19 2718.17 649.22 2177.30 520.04

2.1685

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Properes of Saturated Steam - Pressure in Bar

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Specific
Specific enthalpy Specific enthalpy
Absolute Boiling
Density
volume
of liquid water
of steam
pressure point
(steam)
(steam)
(sensible heat)
(total heat)

Latent heat of
evaporization

Specific
heat

(bar)

(oC)

2.8

131.20

0.646

1.548

551.45

131.71 2721.54 650.03 2170.08 518.32

(kJ/kg
K)
2.1835

133.54

0.606

1.651

561.44

134.10 2724.66 650.77 2163.22 516.68

2.1981

3.5

138.87

0.524

1.908

584.28

139.55 2731.63 652.44 2147.35 512.89

2.2331

143.63

0.462

2.163

604.68

144.43 2737.63 653.87 2132.95 509.45

2.2664

4.5

147.92

0.414

2.417

623.17

148.84 2742.88 655.13 2119.71 506.29

2.2983

151.85

0.375

2.669

640.12

152.89 2747.54 656.24 2107.42 503.35

2.3289

5.5

155.47

0.342

2.920

655.81

156.64 2751.70 657.23 2095.90 500.60

2.3585

158.84

0.315

3.170

670.43

160.13 2755.46 658.13 2085.03 498.00

2.3873

6.5

161.99

0.292

3.419

684.14

163.40 2758.87 658.94 2074.73 495.54

2.4152

164.96

0.273

3.667

697.07

166.49 2761.98 659.69 2064.92 493.20

2.4424

7.5

167.76

0.255

3.915

709.30

169.41 2764.84 660.37 2055.53 490.96

2.4690

170.42

0.240

4.162

720.94

172.19 2767.46 661.00 2046.53 488.80

2.4951

8.5

172.94

0.227

4.409

732.03

174.84 2769.89 661.58 2037.86 486.73

2.5206

175.36

0.215

4.655

742.64

177.38 2772.13 662.11 2029.49 484.74

2.5456

9.5

177.67

0.204

4.901

752.82

179.81 2774.22 662.61 2021.40 482.80

2.5702

10

179.88

0.194

5.147

762.60

182.14 2776.16 663.07 2013.56 480.93

2.5944

11

184.06

0.177

5.638

781.11

186.57 2779.66 663.91 1998.55 477.35

2.6418

12

187.96

0.163

6.127

798.42

190.70 2782.73 664.64 1984.31 473.94

2.6878

13

191.60

0.151

6.617

814.68

194.58 2785.42 665.29 1970.73 470.70

2.7327

14

195.04

0.141

7.106

830.05

198.26 2787.79 665.85 1957.73 467.60

2.7767

15

198.28

0.132

7.596

844.64

201.74 2789.88 666.35 1945.24 464.61

2.8197

16

201.37

0.124

8.085

858.54

205.06 2791.73 666.79 1933.19 461.74

2.8620

17

204.30

0.117

8.575

871.82

208.23 2793.37 667.18 1921.55 458.95

2.9036

18

207.11

0.110

9.065

884.55

211.27 2794.81 667.53 1910.27 456.26

2.9445

19

209.79

0.105

9.556

896.78

214.19 2796.09 667.83 1899.31 453.64

2.9849

20

212.37

0.100

10.047 908.56

217.01 2797.21 668.10 1888.65 451.10

3.0248

21

214.85

0.095

10.539 919.93

219.72 2798.18 668.33 1878.25 448.61

3.0643

22

217.24

0.091

11.032

930.92

222.35 2799.03 668.54 1868.11 446.19

3.1034

23

219.55

0.087

11.525

941.57

224.89 2799.77 668.71 1858.20 443.82

3.1421

24

221.78

0.083

12.020 951.90

227.36 2800.39 668.86 1848.49 441.50

3.1805

25

223.94

0.080

12.515 961.93

229.75 2800.91 668.99 1838.98 439.23

3.2187

26

226.03

0.077

13.012 971.69

232.08 2801.35 669.09 1829.66 437.01

3.2567

27

228.06

0.074

13.509 981.19

234.35 2801.69 669.17 1820.50 434.82

3.2944

28

230.04

0.071

14.008 990.46

236.57 2801.96 669.24 1811.50 432.67

3.3320

29

231.96

0.069

14.508 999.50

238.73 2802.15 669.28 1802.65 430.56

3.3695

30

233.84

0.067

15.009 1008.33 240.84 2802.27 669.31 1793.94 428.48

3.4069

(m3/kg) (kg/m3) (kJ/kg) (kcal/kg) (kJ/kg) (kcal/kg) (kJ/kg) (kcal/kg)

Example - Boiling Water at 100 oC, 0 bar Atmospheric Pressure

At atmospheric pressure (0 bar g, absolute 1 bar ), water boils at 100 oC, and 417.51 kJ of energy are required
to heat 1 kg of water from 0 oC to its evaporating temperature of 100 oC.
Therefore the specific enthalpy of water at 0 bar g (absolute 1 bar ) and 100 oC is 417.51 kJ/kg, as shown in th
table.

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Properes of Saturated Steam - Pressure in Bar

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Another 2257.92 kJ of energy are required to evaporate 1 kg of water at 100 oC into 1 kg of steam at 100 oC.
Therefore at 0 bar g (absolute 1 bar) the specific enthalpy of evaporation is 2257.19 kJ/kg, as shown in the
table.
Total specific enthalpy for steam:
hs = (417.51 kJ/kg) + (2257.92 kJ/kg)
= 2675.43 kJ/kg

Example - Boiling Water at 170 oC, 7 bar Atmospheric Pressure

Steam at atmospheric pressure is of a limited practical use because it cannot be conveyed under its own
pressure along a steam pipe to the point of use.
At 7 bar g (absolute 8 bar), the saturation temperature of water is 170.42 oC. More heat energy is required to
raise its temperature to saturation point at 7 bar g than would be needed if the water were at atmospheric
pressure. The table gives a value of 720.94 kJ to raise 1 kg of water from 0 oC to its saturation temperature of
170 oC.
The heat energy (enthalpy of evaporation) needed by the water at 7 bar g to change it into steam is actually les
than the heat energy required at atmospheric pressure. This is because the specific enthalpy of evaporation
decreases as the steam pressure increases. The evaporation heat is 2046.53 kJ/kg according the table.
Note! Because the specific volume also decreases with increasing pressure, the amount of heat energy
transferred in the same volume actually increases with steam pressure.

Related Topics
Steam and Condensate - Steam & condensate properties - capacities, pipe sizing, systems
configuration and more
Thermodynamics - Thermodynamics of steam and condensate applications

Related Documents
Properties of Saturated Steam - SI Units - A Saturated Steam Table with steam properties as
specific volume, density, specific enthalpy and specific entropy
Specific Volume of Wet Steam - Wet steam an specific volume
Enthalpy of Wet Steam - Wet steam, dryness fraction and enthalpy
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of moisture content - the temperature of the air is not changed
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Steam and Vapor Enthalpy - Introduction and definition of vapor and steam enthalpy - specific
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Vapour Pressure - Vapour and saturation pressure for some common liquids
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Properties of Saturated Steam - Imperial Units - A steam table with sensible, latent and total heat,
and specific volume at different gauge pressures and temperatures

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