Breviary Technical Ceramics

 

      Appendix

 

 


   

10.8 Unit Conversion

Unit

Conversion Factor

Length

1m

= 100 cm = 1010 Å = 39,75 inch
= 3,281 feet = 1,0936 yards
= 0,6214*10-3 miles

Area

1m

= 1.550 sq inch = 10,764 sq feet
= 1.196 sq yards

Volume

1m

= 1.000 l = 61.023 cu inch = 35,314 cu feet
= 2.114 US pints = 1.760 UK pints
= 264,2 US gallons = 8,386 US barrels
= 6,11 UK barrels = 28,37 US bushels
= 27,51 UK bushels = 4,13 US quarters
= 3,44 UK quarters = 0,3532 reg tons

Mass

1 kg

= 1.000 g = 15.432 grains (gr)
= 35,273 ounces = 2,2046 pounds (lbs)
= 1,102*10-3 US short tons
= 0,9842*10-3 UK tons (US long tons)
= 0,0220 US cwt = 0,197 UK cwt

Density

1 kg/m

= 0,001 g/cm = 0,10197 kp s/m4
= 0,6242 lbs/cu ft. = 0,01002 lbs/UK gallon
= 0,08344 lbs/US gallon = 436,994 gr/cu ft

Force

1N

= 1 kg m/s = 105 g cm/s (dyn)
= 0,10197 kp = 7,233 poundal (pdl)
= 0,2248 poundweight (lb wt, lbf)

Pressure

 

 

1 Pa (N/m)

= 1 kg/m s = 10-5 bar
= 0,10197 kp/m (mm WS)
= 10 g/cm s (dyn/cm)
= 0,10197*10-4 at (techn.)

= 0,09694*10-4 atm (phys.)

= 750,1*10-5 Torr (mm QS)

= 1,4504*10-4 lbf/sq inch (psi)

 

1 at

= 10.000 kp/m (mm WS) = 735,6 Torr
= 14,22 lbf/sq inch = 28,96 inch Hg


Unit

Conversion Factor

Work, energy

1 J

= 1 Nm = 1 Ws = 1 kg m/s
= 107 g cm/s (erg) = 0,10197 kp m

= 2,3844 10-4 kcal = 0,27778*10-6 kWh
= 9,4782*10-4 BTU = 0,37767*10-6 PSh
= 34,12*10-12 t SKE (Steinkohleneinheiten)

 

1 kcal

= 4.186,8 J = 426,94 kpm = 3,968 BTU

 

1 kWh

= 859,85 kcal = 1,3596 PSh = 3.411 BTU

 

1 SKE

= 29,3 MJ = 7.000 kcal

Power

1 W

= 1 J/s = Nm/s = 1 kg m/s = 107 erg/s
= 0,10197 kp m/s = 1,3596*10- PS
= 1,3775*10- HP

 

1 PS

= 735,5 W = 75 kp m/s = 632,3 kcal/h
= 0,987 HP

Dynamic
viscosity

1 Ns/m

= 1 Pa s = 1 kg/m s = 10 g/cm s (Poise)
= 0,10197 kp s/m = 0,6721 lbs/ft. s
= 0,020885 lbf/sq. ft

 

1 m Pa s

= 1 cP (Centipoise)

Kinematic
viscosity

1 m/s

= 104 cm/s (Stokes)
= 10,764 sq. ft/s

Heating content,
heat of transformation

1 J/kg

= 1 Ws/kg = 1m/s = 2,3884*10-4 kcal/kg
= 4,30*10-4 BTU/lb

Specific heat

1 J/kgK

= 1 m/sK = 2,3884*10-4 kcal/kg grd

= 2,3884*10-4 BTU lb. F

Thermal conductivity

1 W/mK

= 1 kg m/sK = 0,859824 kcal/m h grd
= 6,934 BTU inch/sq. ft. hr. F

Heat transfer coefficient
coefficient of heat transmission

1 W/mK

= 1 kg/sK
= 0,859824 kcal/mh K
= 0,1754 BTU/sq ft hr F

Temperature

X [K]

= 273,15 + X [C]

 

X [F]

= 32 + 1,8 X [C]

Table 35: Unit Conversion

 

 
 
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