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=16.667L/sec




5.Pressure:kgf/cm2




1kgf/cm2=14.2psi




6.Temperature:




℃=5/9(℉-32)




7.Heat capacity:kcal/kg℃




1kcal/kg℃=1BTU/1b℉




8.Thermal conductivity:kcal/mhr℃




1kcal/mhr℃=0.672BTU/fthr℉




9.Heat transfer coefficient:kcal/m2hr℃




1kcal/m2hr℃=0.2048BTU/ft2hr℉




10.Viscosity:cP




1cP=0.01P=0.01g/cms