Page 344 - Valve Selection Handbook

314 Valve Select10n Handbook

Kinematic Viscosity

2
2
2
2
2
2
in /h cSt (mm /s) tf/h St(cm /s) m /h in /s flVs m /$
l 0.1792 6.944 x 10- 3 1.792X10- 3 6.452 x 1(H 2.778 x 10- 4 1.93 x 10- 6 1.79x10- 7
5.5800 1 0.03875 0.010 3.60 x 10" 3 1.550X10- 3 1.076x10- s 10- 6
144 25.81 1 0.2581 0.0929 0.04 2.778 x 10- 4 0.258 x 10- 4
558.0 100 3.8750 1 0.36 0.1550 1.076x10- 3 10- 4
1550 277.8 10.76 2.778 1 0.4306 2.990 x 10- 3 2.778 x 10- 4
3600 645.2 25 6.452 2.323 1 6.944 x 10- 3 6.452 x 10- 4
518400 92903 3600 929.0 334.5 144 1 0.0929
5.580 x10 6 10 6 3.875 x 10 4 10000 3600 1550 10.76 1

Density of Heat F10w Rate (Heat/Area x Time)
2
2
2
2
W/m 2 kcal/m h Btu/ft h Chu/ft h kcal/ft h kW/m 2
3
1 0.8598 0.3170 0.1761 0.07988 10-
1.163 1 0.3687 0.2049 0.09290 1.163x10- 3
3.155 2.712 1 0.5556 0.2520 3.155 x10- 3
5.678 4.882 1.800 1 0.4536 5.678 x 10- 3
12.52 10.76 3.968 2.205 1 0.01252
1000 859.8 317.0 176.1 79.88 1

Heat-Transfer Coefficient
(Thermal Conductance; Heat/Area x Time x Degree Temperature)
2
2
2
2
2
2
2
W/m °C kcal/m h °C Btu/ft h °F kcal/ft h°C kW/m °C Btu/ft s°F cal/cm s °C
1 0.8598 0.1761 0.07988 10- 3 4.892 x 10- 5 2.388 x 10- 5
1.163 1 0.2048 0.09290 1.163x10-3 5.689 x 10- 5 2.778 x 10- 5
5.678 4.882 1 0.4536 5.678 x 10- 3 2.778 x 10- 4 1.356 x10- 4
12.52 10.76 2.205 1 0.01252 6.124 x10- 4 2.990 x10- 4
1000 859.8 176.1 79.88 1 0.04892 0.02388
20442 17577 3600 1633 20.44 1 0.4882
41868 36000 7373 3344 41.87 2.048 1
2
1 Btu/ft 2 h°F = I Chu/ft h°C
2
2
1 W/m °C = 10 -4 W/cm °C