1、Units,Mass Length Temperature Time Force Area Volume Density Pressure Work Power Enthalpy Flow-rate,Mass,Kg Pound Ounce Gram Ton 1ton=1000kg=2204pound=32150ounce=1000000gram.,Length,Meter Feet Inch mm Micron meter (m) Mile 1feet=12inch=304.8mm, 1m=103mm=106 m 1 mile=1609.34 meter 1inch=25.4mm,Temper
2、ature,Kelvin (K) Celsius(Deg C, ) Fahrenheit (F)K=273.15+, =5/9(F-32) F=9/5*+32,Time,Day Hour Minutes Second1 day=24 h=1440 min=86400 sec,force,Kilo-gram force (kgf) Newton (N)1 kgf=9.806 N,Area,Square Meter (m) Square Feet ( ft) Square Inch(in) Square cm (cm)1 m=104 cm 1 ft=144 in=929 cm,Volume,Cub
3、ic Meter (m) Cubic Feet ( ft) Cubic inch(in) Cubic cm (cm) Liter (L) Gallon Mil-liter(mL) 1 m=103L=106mL=10 6cm, 1 gallon=3.7854L, 1 ft=28.32L, 1 in=16.4 mL,Density,Kg/m3 g/cm3 Kg/liter Pound/cubic feet (lb/cf) pound/cubic inch (lb/ci)1000kg/m3=1 g/cm3=1 kg/liter=62.43 lb/cf=0.0362lb/ci,Pressure,Pas
4、cal MPa kPa bar atm mbar mmHg(torr) Kgf/cm inH2O mmH2O Pound/square inch (Psi) 1pa=1N/m, 1Mpa=10bar=103kpa=104mbar=106Pa, 1torr=133.3Pa 1kgf/cm=98.06kPa, 1 inH2O=25.4mmH2O=249Pa, 1Psi=6.895 kPa, 1atm=101.325kPa,Work/heat,Joule (J) British thermal unit (BTU) Calorie (cal) kWh Nm kJ 1J=1Nm, 1kWh=3600k
5、J, 1cal=4.186J,1 BTU=1.0556kJ,Power,Watt kW MW Horse power (hp) 1MW=103kW=106W 1hp=0.735kW,Enthalpy,kJ/kg BTU/lb kcal/kg 1 BTU/lb=2.326 kJ/kg, 1kcal/kg =4.186 kJ/kg,Flow-rate,m3/h Cubic feet per hour/cfh Cubic feet per min/cfm Liter per min/lpm Liter per sec/lps 1 lpm=0.06 m3/h, 1lps=3.6m3/h, 1cfm=1.699m3/h, 1cfh=0.0283 m3/hNm3 means 1 m3/h 1atm, 0 deg C.,
