Electric Heating Design Data - Units of Measurement

Electric Heating Design Data-Units of Measurement

















































1.Power:W,kW


1kW=3.412BTU/hr(British Thermal Unit/hour)

　    =1.36(horsepower)

　    =864Kcal/hr


2.Weight:kg


1kg=2.204621b(pound)


3.Flow velocity:m/min


 


4.Flow rate:m3/min


1m3/min=35.31CFM(cubic feet per minute)


5.Temperature:°C


°C=(°F-32)×5/9


6.Heat:Kcal


1Kcal=3.968BTU(British Thermal Unit)


7.Density:kg/m3


1kg/m3=0.062421b/ft3(pound per cubic foot)


8.Specific heat:Kcal/(kg·°C)


1Kcal/(kg·°C)=1BTU/(1b·°F)


9.Thermal conductivity:Kcal/(m·h·°C)


1Kcal/(m·h·°C)=0.672BTU/(ft·h·°F)


10.Heat transfer coefficient:Kcal/(m2·h·°C)


1Kcal/(m2·h·°C)=0.2048BTU/(ft2·h·°F)


11.Viscosity:cP


1cP=0.6721b/(ft·h)