Solar Radiation Data Manual
for
Flat-Plate and Concentrating Collectors

Table of Contents

Appendix

Unit Conversion Factors

To Convert Into Multiply By
          kilowatt-hours per square meter           megajoules per square meter           3.60
          kilowatt-hours per square meter           Btus per square foot           317.2
          kilowatt-hours per square meter           Langleys           86.04
          kilowatt-hours per square meter           calories per square centimeter           86.04
          meters           feet           3.281
          meters per second           miles per hour           2.237
          millibars           pascals           100.0
          millibars           atmospheres           0.0009869
          millibars           kilograms per square meter           10.20
          millibars           pounds per square inch           0.0145
          degrees Centigrade           degrees Fahrenheit           °C x 1.8 + 32    
          degrees (angle)           radians           0.017453
          degree days (base 18.3 ° C)           degree days (base 65 °F)           1.8

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