常见单位转换关系式.docx
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常见单位转换关系式.docx
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常见单位转换关系式
常见单位转换关系式
发布:
2008-12-1410:
51|作者:
llljq|来源:
管道与设备技术网
[url=]Acceleration[/url]foot/second2,meter/second2,gal,galileo,inch/second2
∙1m/s2=3.28084ft/s2=100cm/s2=39.37inchpersecondsquared(inch/s2)
∙1ft/s2=0.3048m/s2=30.48cm/s2
∙1g=9.80665m/s2=32.17405ft/s2
[url=]Area[/url]acre,are,barn,sq.ft.,sq.in.,foot2,hectare,inch2,mile2,section,meter2,township,yard2,hectares
∙1m2=1550in2=10.764ft2=1.1968yd2=3.861x10-7mile2
∙1ft2=0.0929m2=144in2=0,1111yd2=3.587x10-8mile2
∙1in2=6.452cm2=6.452x10-4m2=6.944x10-3ft2=7.716x10-4yd2=2.491x10-10mile2
∙1yd2=0.8361m2=1,296in2=9ft2=0.3228x10-6mile2
∙1mile2=2.590x106m2=0.4015x1010in2=2.788x107ft2=3.098x106yd2=640Acres
∙1acre=1/640mile2=0.404686ha(Hectares)=4,.86m2=43,560Sq.Ft.=4840Sq.Yds.
∙1km2=102ha2=106m2=1010cm2=1012mm2
∙1ha(Hectare)=104m2=108cm2=1010mm2=2.471Acres
∙1cm2=10-4m2=0.155in2
∙1mm2=1.55x10-3in2
∙1township=9.323957107m2
∙1section=2.589106m2
[url=]Density[/url]kg/cubicmeter,gram/centimeter3,lmb/cubicinch,lbm/cubicfoot,slug/cubicfoot,kilogram/cubicmeter,lbm/gallon(USliq)
∙DensityWater1,000kg/m3=62.43Lbs./Cu.Ft=8.33Lbs./Gal.=0.1337Cu.Ft./Gal.
∙1lb/ft3=16.018kg/m3=0.016g/cm3=0.00926oz/in3=2.57oz/gal(Imperial)=2.oz/gal(U.S.)=0.0005787lb/in3=27lb/yd3=0.161lb/gal(Imperial)=0.134lb/gal(U.S)=0.0121ton/yd3
∙1slug/ft3=515.379kg/m3
∙1kg/l=62.43lb/ft3
∙1kg/m3=0.001g/cm3=0.0005780oz/in3=0.16036oz/gal(Imperial)=0.1335oz/gal(U.S.)=0.0624lb/ft3=0.000036127lb/in3=1.6856lb/yd3=0.010022lb/gal(Imperial)=0.008345lb/gal(U.S)=0.0007525ton/yd3
[url=]Energy[/url]BritishThermalUnit(Btu),calorie,joule,kilojoule,electronvolt,erg,footlbf,footpoundal,kilocalorie,kilowatthour,watthour,
∙1J(Joule)=0,1020kpm=2.778x10-7kWh=2.389x10-4kcal=0.7376ftlbf=1(kgm2)/s2=1wattsecond=1Nm=1ftlb=9.478x10-4Btu
∙1kpm=9.80665J=2.724x10-6kWh=2.342x10-3kcal=7.233ftlbf=9.295x10-3Btu
∙1kWh=3.6x106J=3.671x105kpm=859.9kcal=2.656x106ftlbf=3.412x103Btu
∙1kJ=1kNm=1kWs=103J=0.947813Btu=737.6ftlbf=0.23884kcal
∙1Btu(Britishthermalunit)=1,.06J=107.6kpm=2.931x10-4kWh=0.252kcal=778.16ftlbf=1.055x1010ergs=252cal=0.293watthour
∙1cal=4.J
∙1kcal=4186,8J=426,9kpm=1.163x10-3kWh=3.088ftlbf=3.9683Btu=1,000cal
∙1ftlbf(footpoundforce)=1.3558J=0.1383kpm=3.766x10-7kWh=3.238x10-4kcal=1.285x10-3Btu
∙1hph(horsepowerhour)=2.6846x106J=0.7457kWh
∙1erg=1(gcm2)/s2=10-7J
∙1eV=1.602x10-19J
∙1Q=1018Btu=1.055x1021J
∙1Quad=1015Btu
∙1kgm=7.233ftlb=0.00929Btu=9.806Joule
[url=]Energyperunitmass[/url]
∙1kJ/kg=1J/g=0.4299Btu/lbm=0.23884kcal/kg
[url=]Flow[/url]-seeVolumeflow[url=]Force[/url]dyne,kilogramforce(kgf),kilopoundforce,kip,lbf(poundforce),ounceforce(avoirdupois),poundal,newton
∙1N(Newton)=0.1020kp=7.233pdl=7.233/32.174lbf=0.2248lbf=1(kgm)/s2=105dyn=1/9.80665kgf
∙1lbf(Poundforce)=4.44822N=0.4536kp=32.17pdl=4.448x105dyn
∙1dyn=1(gcm)/s2
∙1kghasaweightof1kp
∙1kp(Kilopond)=9.80665N=2.205lbf=70.93pdl
∙1pdl(Poundal)=0.13826N=0.01409kp=0.03108lbf
[url=]Heatflowrate[/url]
∙1Btu/sec=1,.1W
∙1kW(kJ/s)=102.0kpm/s=859.9kcal/h=3,413Btu/h=1.360hk=1.341hp=738ftlb/s=1,000J/s=3.6x106J/h
∙1kpm/s=9.8067x10-3kW=8.432kcal/h=32.47Btu/h=0.01333hk=0.01316hp=7.237ftlb/s
∙1kcal/h=1.163x10-3kW=0.1186kpm/s=3.969Btu/h=1.582x10-3hk=1.560x10-3hp=0.8583ftlb/s
∙1Btu/h=2.931x10-4kW=0.0299kpm/s=0.252kcal/h=3.986x10-4hk=3.939x10-4hp=0.2163ftlb/s
∙1kcal/h=1.16x10-3kW
∙1hk(metrichorsepower)=0.735499kW=75.00kpm/s=632.5kcal/h=2,510Btu/h=0.9863hp=542.8ftlb/s
∙1hp=0.74570kW=76.04kpm/s=641.2kcal/h=2,545Btu/h=1.014hk=550.3ftlb/s
∙1ftlb/s=1.35501kW=0.1382kpm/s=1.165kcal/h=4.625Btu/h=1.843x10-3hk=1.817x10-3hp
[url=]Heatflux[/url]
∙1Btu/ft2=2.713kcal/m2=2.043x104J/m2K
∙1Btu/ft2h=3.1525W/m2
∙1Btu/ft2oF=4.88kcal/m2K=2.043x104J/m2K
∙1kcal/m2=0.369Btu/ft2
∙1kcal/m2K=0.205Btu/ft2oF
[url=]Heatgenerationperunitvolume[/url]
∙1Btu/ft3=8.9kcal/m3=3.73x104J/m3
∙1Btu/ft3h=10.343W/m3
∙1kcal/m3=0.112Btu/ft3
[url=]Heatgenerationperunitmass[/url]
∙1Btu/lb=0.556kcal/kg=2,326J/kg
∙1kcal/kg=1.800Btu/lb
[url=]Heattransfercoefficient[/url]
∙1Btu/ft2hoF=5.678W/m2K=4.882kcal/hm2oC
∙1W/m2K=0.85984kcal/hm2oC=0.1761Btu/ft2hoF
∙1kcal/hm2oC=1.W/m2K=0.205Btu/ft2hoF
[url=]HydraulicGradients[/url]
∙1ftH2O/100ft=0.44psi/100ft=9.8kPa/100m=1000mmH2O/100m
∙1psi/100ft=2.3ftH2O/100ft=2288mmH2O/100ft=22.46kPa/100m
[url=]Length[/url]feet,meters,centimeters,kilometers,miles,furlongs,yards,micrometers,inches,angstrom,cubit,fathom,foot,hand,league,lightyear,micron,mil,nauticalmile,rod,
∙1m(meter)=3.2808ft=39.37in=1.0936yd=6.214x10-4mile
∙1km=0.6214mile=3281ft=1094yds
∙1in(inch)=25.4mm=2.54cm=0.0254m=0.08333ft=0.02778yd=1.578x10-5mile
∙1ft(foot)=0.3048m=12in=0.3333yd=1.894x10-4mile=30.48cm=304.8mm
∙1mm=10-3m
∙1cm=10-2m=0.3937in=0.0328ft
∙1mm=0.03937in
∙1Ã…(Ã…ngström)=10-10m
∙1mile=1.6093km=1,609.3m=63,346in=5,280ft=1,760yd
∙1mil(NorwayandSweden)=10kilometres
∙1nm(nauticalmile)=1,852metres=1.151mile=6076.1feet
∙1yd(yard)=0.9144m=36in=3ft=5.682x10-4mile
∙1Furlong=660feet=40rods=1/8mile
∙1rod=5.5yards
∙1landleague=3miles
∙1Fathom=6feet=1.828804meters
[url=]Mass[/url],weightpounds,kilograms,grams,ounces,grains,tons(long),tons(short),tons(metric),carat,grain,ouncemass,poundmass(lbm),slug,tonne
∙1kg=1,000g=2.2046lb=6.8521x10-2slug
∙1lb=16oz=0.4536kg=453.6g=7000grains=0.03108slug
∙1slug=14.594kg=32.174lbm
∙1grain=0.000143lb=0.0648g
∙1g=15.43grains=0.0353oz=0.002205lb
∙1tonne=103kg=106g=109mg=0.984tons
∙1qt=0.9464liters
∙1Ton=2000Lbs.=907kg
∙1longton=2240pounds
∙1oz(ounce)=28.35g=437.5grains
∙1troypound=12troyounces
∙1scruple=20grains
∙1dram=3scruples
∙1apothecaryounce=8drams
∙1apothecarypound=12apothecaryounces
∙1pennyweight=24grains
∙1Gal.H2O=8.33Lbs.H2O
∙Density,SpecificWeightandSpecificGravity-Anintroductionanddefinitionofdensity,specificweightandspecificgravity.Formulaswithexamples.
[url=]Massflowrate[/url]
∙1lb/h=1.26x10-4kg/s
∙1lb/s=0.4536kg/s
∙1lb/min=7.56x10-3kg/s=27.216kg/s
∙1kg/s=3,600kg/h=132.28lb/min
∙1kg/h=2.778x10-4kg/s=3.67x10-2lb/min
MomentofInertia
∙1kgm2=10000kgcm2=54675ouncein2=3417.2lbin2=23.73lbft2
[url=]Power[/url]horsepower,kilowatt,watt,btu/second,calorie/second,footlbf/second,kilocalorie/second
∙1W=1kgm2/s3=1Nm/s=1J/s
∙1kW=1,000Watts=3,412Btu/h=737.6/550Britishhp=1.341Britishhp=103/9.80665kgfm/s=737.6ftlbf/s=103/(9.8066575)metrichp
∙1hp(Englishhorsepower)=745.7W=0.746kW=550ftlb/s=2,545Btu/h=33.000ftlb/m=1.0139metrichorsepower~=1.0KVA
∙1metrichorsepower=736W=75kgm/s=0.986Englishhorsepower
∙1refrigerationTon=12,000Btu/hcooling=3.516kW=3,025.9kCalories/h
∙1coolingtowerTon=15,000Btu/h=3,782kCalories/h
∙1Therm=100,000Btu/h
∙1ftlb/s=1.3558W
∙1Btu/s=1055.1W
∙1Btu/h=1Btuh=0.293W=0.001MBH
[url=]Powerperunitarea[/url]
∙1W/m2=0.3170Btu/(hft2)=0.85984kcal/(hm2)
[url=]Pressure[/url]atmosphere,centimetersofmercury,footofwater,bar,barye,centimeterofwater,dyne/centimeter2,inchofmercury,inchofwater,kgf/centimeter2,kgf/meter2,lbf/foot2,lbf/inch2(psi),millibar,millimeterofmercury,pascal,torr,newton/meter2
∙StandardAtmosphericPressure1atm=101.325kN/m2=101.325kPa=14.7psia=0psig=29.92inHg=760torr=33.95Ft.H2O=407.2In.W.G(WaterGauge)=2116.8Lbs./Sq.Ft.
∙1N/m2=1Pa=1.4504x10-4lb/in2=1x10-5bar=4.03x10-3inwater=0.336x10-3ftwater=0.1024mmwater=0.295x10-3inmercury=7.55x10-3mmmercury=0.1024kg/m2=0.993x10-5atm
∙1Pa=10-6N/mm2=10-5bar=0.1020kp/m2=1.02x10-4mH2O=9.869x10-6atm=1.45x10-4psi(lbf/in2)
∙1N/mm2=106Pa=10bar=1.020x105kp/m2=102.0mH2O=9.869atm=145.0psi(lbf/in2)
∙1mmHg=1torr=0.01934lb/in2
∙1atm=101,325Pa(N/m2)=1.013x102kN/m2=1.033x104kp/m2=1.033kp/cm2=1.013bar=14.696psi(lb/in2)=407.1inH2Oat620F(16.7oC)=33.9ftH2Oat620F(16.7oC)=10.33mH2Oat620F(16.7oC)=29.92inmercuryat620F(16.7oC)=760mmmercuryat620F(16.7oC)=760torr
∙1bar=105Pa(N/m2)=0.1N/mm2=10,kp/m2=10.20mH2O=0.9869atm=14.50psi(lbf/in2)=106dyn/cm2=750mmHg
∙1kp/m2=9.81Pa(N/m2)=9.807x10-6N/mm2=10-3mH2O=1mmH2O=0.9681x10-4atm=1.422x10-3psi(lb/in2)=0.0394inH2O=0.0736mmmercury
∙1psi(lb/in2)=144psf(lbf/ft2)=6,894.8Pa(N/m2)=6.895x10-3N/mm2=6.895x10-2bar=27.71inH2Oat62oF(16.7oC)=703.1mmH2Oat62oF(16.7oC)=2.0416
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