Airflow Data. Honeywell AUTOMATIC CONTROL SI Edition

GENERAL ENGINEERING DATA

PROPERTIES OF SATURATED STEAM DATA

Pressure in kPa

(absolute)

10

50

1

5

60

4000

5000

6000

7000

8000

9000

10000

11000

12000

13000

1300

1400

1500

1600

1700

1800

1900

2000

2500

3000

14000

15000

20000

22000

400

450

500

600

700

800

900

1000

1100

1200

70

80

90

100

101.3

150

200

250

300

350

Boiling Point or Steam

Temperature

°

C

6.98

32.90

45.83

81.35

85.95

250.33

263.91

275.55

285.79

294.97

303.31

310.96

318.05

324.65

330.83

191.61

195.04

198.29

201.37

204.31

207.11

209.80

212.37

223.94

233.84

336.64

342.13

365.70

373.69

143.62

147.92

151.84

158.84

164.96

170.41

175.36

179.88

184.07

187.96

89.96

93.51

96.71

99.63

100.00

111.37

120.23

127.43

133.54

138.87

0.2230

0.1986

0.1801

0.1654

0.1534

0.1432

0.1343

0.1265

0.1195

0.1131

0.3887

0.3751

0.3629

0.3517

0.3415

0.3321

0.3236

0.3155

0.2827

0.2581

0.1072

0.1017

0.0767

0.0611

0.6799

0.6433

0.6121

0.5617

0.5222

0.4902

0.4635

0.4408

0.4212

0.4040

1.5379

1.4446

1.3671

1.3015

1.2934

1.0766

0.9410

0.8486

0.7782

0.7239

Table 20. Properties of Saturated Steam.

Specific

Volume (V), m 3 /kg

129.20

28.19

14.67

3.240

2.732

V

(For valve sizing)

11.3667

5.3094

3.8301

1.8000

1.6529

Maximum

Allowable

Pressure Drop, kPa. (For valve sizing)

0.5

2.5

5.0

25.0

30.0

Heat of the

Liquid, kJ/kg

29.34

137.77

191.83

340.56

359.93

0.1511

0.1407

0.1317

0.1237

0.1166

0.1103

0.1047

0.09954

0.07991

0.06663

0.04975

0.03943

0.03244

0.02737

0.02353

0.02050

0.01804

0.01601

0.01428

0.01280

0.01150

0.01034

0.00588

0.00373

0.4622

0.4138

0.3747

0.3155

0.2727

0.2403

0.2148

0.1943

0.1774

0.1632

2.365

2.087

1.869

1.694

1.673

1.159

0.8854

0.7184

0.6056

0.5240

2000.0

2500.0

3000.0

3500.0

4000.0

4500.0

5000.0

5500.0

6000.0

6500.0

650.0

700.0

750.0

800.0

850.0

900.0

950.0

1000.0

1250.0

1500.0

7000.0

7500.0

10000.0

11000.0

200.0

225.0

250.0

300.0

700.0

400.0

450.0

500.0

550.0

600.0

35.0

40.0

45.0

50.0

50.7

75.0

100.0

125.0

150.0

175.0

1087.4

1154.5

1213.7

1267.4

1317.1

1363.7

1408.0

1450.6

1491.8

1532.0

814.70

830.08

844.67

858.56

871.84

884.58

896.81

908.59

961.96

1008.4

1571.6

1611.0

1826.5

2011.1

604.67

623.16

640.12

670.42

697.06

720.94

742.64

762.61

781.13

798.43

376.77

391.72

405.21

417.51

419.06

467.13

504.70

535.34

561.43

584.27

Latent Heat of Evap., kJ/kg

2485.0

2423.8

2392.9

2305.4

2293.6

2800.3

2794.2

2785.0

2773.5

2759.9

2744.6

2727.7

2709.3

2689.2

2667.0

2785.4

2787.8

2789.9

2791.7

2793.4

2794.8

2796.1

2797.2

2800.9

2802.3

2642.4

2615.0

2418.4

2195.

2737.6

2742.9

2747.5

2755.5

2762.0

2667.5

2772.1

2776.2

2779.7

2782.7

2283.3

2274.0

2265.6

2257.9

2256.9

2693.4

2706.3

2716.4

2724.7

2731.6

Total Heat of Steam, kJ/kg

2514.4

2561.6

2584.8

2646.0

2653.6

2800.3

2794.2

2785.0

2773.5

2759.9

2744.6

2727.7

2709.3

2689.2

2667.0

2785.4

2787.8

2789.9

2791.7

2793.4

2794.8

2796.1

2797.2

2800.9

2802.3

2642.4

2615.0

2418.4

2195.6

2737.6

2742.9

2747.5

2755.5

2762.0

2667.5

2772.1

2776.2

2779.7

2782.7

2660.1

2665.8

2670.9

2675.4

2676.0

2693.4

2706.3

2716.4

2724.7

2731.6

476 ENGINEERING MANUAL OF AUTOMATIC CONTROL

GENERAL ENGINEERING DATA

AIRFLOW DATA

FAN RATINGS

Fans are rated at standard conditions of air: 1.2041 kg/m 3 and 20

°

C at sea level. Therefore, pressures corrected to standard conditions must be used when selecting fans from fan rating tables or curves. Table 21 gives correction factors.

125

150

175

200

225

250

275

300

325

350

375

400

70

80

90

100

30

40

50

60

Temp

°

C

-40

-30

-20

-10

0

10

20

Pressure at operating conditions x factor = pressure at standard conditions.

Horsepower at standard conditions

÷

factor = horsepower required at operating conditions

CAUTION: Size motor for highest density (lowest factor) condition at which it is expected to operate.

Table 21. Altitude and Temperature Correction Factors.

1.86

1.95

2.03

2.12

2.20

2.29

1.23

1.27

1.35

1.44

1.52

1.61

1.69

1.78

m 0 500 1000

Altitude (m) with Barometric Pressure (kPa)

1500 2000 2500 3000 3500 4000 4500 5000 5500 kPa 101.33

95.46

89.88

84.56

79.50

74.69

70.12

65.78

61.66

57.75

54.05

50.54

0.79

0.84

0.89

0.95

1.01

1.08

1.15

1.22

1.30

1.39

1.49

1.59

0.83

0.86

0.89

0.93

0.88

0.91

0.95

0.99

0.93

0.97

1.01

1.05

0.99

1.03

1.07

1.11

1.05

1.10

1.14

1.18

1.12

1.17

1.21

1.26

1.19

1.24

1.29

1.34

1.27

1.33

1.38

1.43

1.36

1.41

1.47

1.53

1.45

1.51

1.57

1.63

1.55

1.61

1.68

1.74

1.66

1.73

1.79

1.86

0.96

1.00

1.03

1.06

1.10

1.13

1.17

1.20

1.02

1.06

1.09

1.13

1.17

1.20

1.24

1.27

1.09

1.12

1.16

1.20

1.24

1.28

1.31

1.35

1.15

1.19

1.23

1.28

1.32

1.36

1.40

1.44

1.23

1.27

1.31

1.36

1.40

1.44

1.49

1.53

1.31

1.35

1.40

1.44

1.49

1.54

1.58

1.63

1.39

1.44

1.49

1.54

1.59

1.64

1.69

1.73

1.48

1.54

1.59

1.64

1.69

1.74

1.80

1.85

1.58

1.64

1.69

1.75

1.81

1.86

1.92

1.97

1.69

1.75

1.81

1.87

1.93

1.99

2.05

2.11

1.80

1.87

1.93

2.00

2.06

2.12

2.19

2.25

1.93

2.00

2.07

2.13

2.20

2.27

2.34

2.41

1.31

1.35

1.44

1.53

1.62

1.71

1.80

1.89

1.98

2.07

2.16

2.25

2.34

2.43

1.39

1.43

1.53

1.62

1.72

1.81

1.91

2.00

2.10

2.20

2.29

2.39

2.48

2.58

1.48

1.52

1.62

1.72

1.83

1.93

2.03

2.13

2.23

2.33

2.44

2.54

2.64

2.74

1.57

1.62

1.72

1.83

1.94

2.05

2.16

2.27

2.37

2.48

2.59

2.70

2.81

2.92

1.67

1.72

1.84

1.95

2.07

2.18

2.30

2.41

2.53

2.64

2.76

2.87

2.99

3.10

1.78

1.83

1.96

2.08

2.20

2.32

2.45

2.57

2.69

2.81

2.94

3.06

3.18

3.31

1.90

1.95

2.08

2.22

2.35

2.48

2.61

2.74

2.87

3.00

3.13

3.26

3.39

3.52

2.03

2.08

2.22

2.36

2.50

2.64

2.78

2.92

3.06

3.20

3.34

3.48

3.62

3.76

2.17

2.23

2.37

2.52

2.67

2.82

2.97

3.12

3.27

3.42

3.57

3.72

3.86

4.01

2.31

2.38

2.54

2.70

2.86

3.01

3.17

3.33

3.49

3.65

3.81

3.97

4.13

4.29

3.73

3.91

4.08

4.25

4.42

4.59

2.47

2.54

2.71

2.88

3.05

3.22

3.39

3.56

EXAMPLE:

Air at 1000m and 60

°

C: 89.88 kPa x 1.28 = 115.05 kPa

ENGINEERING MANUAL OF AUTOMATIC CONTROL

477