Page 607 - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS, Volume 1, 3rd Edition

Appendix 573

A-2.
(Concluded). Physical Property Conversion Factors

meter= 10 decimeters= 39.37 inches Kg-cal./ (hr.) ( sq. m.) ( °C.) X 0.2048
= 100 centimeters = Btu/ (hr.)( sq.ft.)( °F)
= 1,000 millimeters G-cal./ (sec.)(sq. cm.) ( °C.) X 7,380
= 1,000,000 miscrons = 1,000,000 micrometers = Btu/ (hr.)(sq.ft.)(°F)
= 1 / 1,000 kilometer Watts/ (sq. in.) (°F.)X 490 = Btu/(hr.) (sq. ft.) (°F.)
= 10 10 Angstrom units
IO mi iii meters = 1 centimeter= 0.393 7 inches
10 centimeters= 1 decimeter= 3.937 inches
25.4 millimeters = 1 inch Energy Units

Specific Heat Pound-Centigrade-Unit(PCU) X 1.8 = Btu
X 0.45359 = calorie
(gra.'TI-cal.) Btu X 1400.4 = ft.-lb.
(gram) (°C.) X lB = (pound) (°C.) X 0.0005276 =
Btu kilowatt-hr.
X l.O= (pound)(°F.)
X 1899.36 = joules
joules
X 4.186 = (gram) (oC.)
Calories X 3.9683 = Btu
joules
X 1055 = (pound) (oF.) X 3091.36 = ft.-lb.
kilowatt-hours X 0.001559 = horsepower-hr.
3
X 1.1 63 X l0- = (kilogram) (°C.) X 0.001163 = kilowatt-hr.
kilowatt-hours X 4187.37 = joules
X 2.930 X 10-4 = (pound) (oF.)
Specific heat of water at 1 atm. = 0.238 cal./gm-°C.
Btu/lb. - ° F. X 0.2390 = Btu/lb. - R
0
Pressure
Heat Transfer Coefficient
1 mm Hg= 1,333 dynes/sq. cm.
PCU/(hr.)(sq.ft.)(°C.) X 1.0 750 mm Hg= 10 dynes/sq. cm.= 1 megabar @ °C.
= Btu/ (hr.)(sq.ft.) (°F) and g = 980.6