Page 288 - The Jet Engine

DENSITY 1 lb/in 3 = 27679.9 kg/m 3
1 lb/ft 3 = 16.0185 kg/m 3

VELOCITY 1 in/min = 0.42333 mm/s
1 ft/min = 0.00508 m/s
1 ft/s = 0.3048 m/s
1 mile/h = 1.60934 km/h
1 International knot = 1.852 km/h

ACCELERATION 1 ft/s 2 = 0.3048 m/s 2

-4
MASS FLOW RATE 1 lb/h = 1.25998x10 kg/s
FORCE 1 Ibf = 4.44822 N
1 kgf = 9.80665 N
1 tonf = 9964.02 N

PRESSURE 1 in Hg (0.0338639 bar) = 3386.39 Pa
2
1 Ibf/in (0.0689476 bar) = 6894.76 Pa
1 bar = 100.0 kPa
1 standard atmosphere = 101.325 kPa

MOMENT (torque) 1 Ibf in = 0.112985 Nm
1 Ibf ft = 1.35582 Nm

ENERGY/ HEAT/ WORK 1 hph = 2.68452 MJ
1 therm = 105.506 MJ
1 Btu = 1.05506 kJ
1 kWh = 3.6 MJ

HEAT FLOW RATE 1 Btu/h = 0.293071 W

POWER 1 hp (550 ft Ibf/s) = 0.745700 kW

2
2
KINEMATIC VISCOSITY 1 ft /s = 929.03 stokes = 0.092903 m /s
SPECIFIC ENTHALPY 1 Btu/ft 3 = 37.2589 kJ/rn 2
1 Btu/lb = 2.326 kJ/kg

PLANE ANGLE 1 radian (rad) = 57.2958 degrees
1 degree = 0.0174533 rad = 1.1111 grade
1 second = 4.84814x10-6 rad = 0.0003 grade
1 minute = 2.90888x10-4 rad = 0.0185 grade

VELOCITY OF ROTATION 1 revolution/min = 0.104720 rad/s

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