07/03/2009 ÿú Simply divide the kg/h by density (kg/m3) to get m3/h (actual m3 of ammonia flowing per hour). RE: How to convert Kg/hr to Nm3/hr zdas04 (Mechanical) 22 Jan 09 09:13, 21/11/2010 ÿú Dry air is 28.966 g/mol (moist air needs a correction for water vapor and is lighter). At normal one mole of gas occupies 22.414 L (assuming it obeys Ideal gas Law) There are 3600 s/h, so 2.5 kg/s is 9000 kg/h. 9000 kg/h x 1 kmol/28.966 kg x 22.414 mü/kmol = 6964 Nmü/h.
NM3 /hr: Mass lb/hr kg /hr: Volume (English) CFM ft ASL PSIA øF PSIG: Volume (Metric) M3/hr m ASL BarA øC BarG, So, PV=(m/M)*R*T or m(kg/h) = (P*V*M)/(R*T) at Normal conditions then we have: m(kg/h) = M* 100* V (Nm3/h) / (8.314*273.15) or. m(kg/h) = 0.044 M* V (Nm3/h) example: 20 Nm3/h of Nitrogen is equal to: m = 0.044* 28 (molecular weight) * 20 (Nm3/h) m = 7 kg/h. Hope it helps you. All the best :), Since air can be assumed to behave as an ideal gas under those conditions, its compressibility factor is 1 so in the relation:PV=ZmRT Z=1R for air = 0.287 kPa.m3/( kg .K) V=1m3 therefore 101.330*1=1*m*0.287*273 so m = 1.295 kg . Conversion factor: 1 Nm3 /hr = 1.295 kg /hr, 22/06/2006 ÿú kg/h of gas = (kg/h of air)(M of gas) / (M of air) To clear up confusion about square root term: If your Nm3/h of air was obtained from a flow meter of some type that works by measuring a ?P across an orifice or some other device and you want to re-calibrate the meter to use a different set of reference temperature and pressure, then the square root term comes into play.
500 Nl /minute compressed air x 60 / 1000 = 30 Nm 3 /hour compressed air. 2. Nm 3 /h ? Nl/min. The product consumes 30 normal cubic meters compressed air per hour. How many normal liters of compressed air is this per minute? 30 Nm 3 /hour compressed air / 60 x 1000 = 500 Nl/minutes compressed air, Kilogram /Hour (Gasoline At 15.5øC) ? Pound/Hour (Gasoline At 15.5øC) Cubic Meter/Day ? Barrel (oil)/Day. Cubic Meter/Minute ? Cubic Foot/Minute. Liter/Hour ? Gallon/Hour. Kilogram /Second (Gasoline At 15.5øC) ? Pound/Second (Gasoline At 15.5øC) Liter/Second ? Gallon/Second. Cubic Meter/Second ? Cubic Foot/Second.;"
