Gas Turbine Handbook : Principles and Practices

Appendix C 377
kilowatts horsepower 7.457 × 10 –1
m-kg/sec horsepower 76.04
metric hp horsepower 1.014
Btu-sec horsepower, metric 6.975 × 10 –1
horsepower horsepower, metric 9.863 × 10 –1
kilowatts horsepower, metric 7.355 × 10 –1
m-kg/sec horsepower, metric 75.0
Btu horsepower-hours 2.545 × 10 3
ft-lb horsepower-hours 1.98 × 10 6
kilowatt-hours horsepower-hours 7.457 × 10 –1
m-kg horsepower-hours 2.737 × 10 5
cm Hg @ 32°F (0°C) in H 2 O @ 40°F (4°C) 1.868 × 10 –1
in Hg @ 32°F (0°C) in H 2 O @ 40°F (4°C) 7.355 × 10 –2
kg/sq m in H 2 O @ 40°F (4°C) 25.40
lb/sq ft. in H 2 O @ 40°F (4°C) 5.202
lb/sq in. in H 2 O @ 40°F (4°C) 3.613 × 10 –2
atmospheres in H 2 O @ 60°F (15°C) 2.455 × 10 –3
in Hg @ 32°F (0°C) in H 2 O @ 60°F (15°C) 7.349 × 10 –2
atmospheres in Hg @ 32°F (0°C) 3.342 × 10 –2
ft H 2 O 40°F (4°C) in Hg @ 32°F (0°C) 1.133
in. H 2 O @ 40°F (4°C) in Hg @ 32°F (0°C) 13.60
kg/sq m in Hg @ 32°F (0°C) 3.453 × 10 2
lb/sq ft. in Hg @ 32°F (0°C) 70.73
lb/sq in. in Hg @ 32°F (0°C) 4.912 × 10 –1
cm in 2.54
Btu Joules 9.480 × 10 –4
ft-lb Joules 7.376 × 10 –1
hp-hr Joules 3.725 × 10 –7
kg calories Joules 2.389 × 10 –4
kg m Joules 1.020 × 10 –1
watt-hr Joules 2.778 × 10 –4
grams/cu cm kg/cu m 1 × 10 –3
lb/cu ft kg/cu m 62.43 × 10 –3
in H 2 O @ 40°F (4°C) kg/sq cm 3.28 × 10 –7
in Hg @ 32°F (0°C) kg/sq cm 28.96
lb/sq ft. kg/sq cm 2.048 × 10 3
lb/sq in. kg/sq cm 14.22
Btu kilogram-calories 3.9685
ft-lb kilogram-calories 3087