Both have applications in gas volume measurements.
Nm3 is "Normal cubic meter"
"Normal" is a set pressure and temperature which (just to make things difficult) differs between industries.
Sm3 is"Standard cubic meter", a volume unit of measurement defined as follows: "Cubic meter at a temperature of 15° Celsius and a pressure of 101.325 kPa (Kilopascal)".
So, to perform the conversion, you will have to take into account the industry definition of "Normal" and compute Sm3 using Dalton's gas laws.
Nm3 (normal cubic meters) and Sm3 (standard cubic meters) are units used to measure gas flow at different conditions. Nm3 is gas flow measured at standard temperature and pressure conditions, while Sm3 is gas flow measured at the actual flowing temperature and pressure conditions. The main difference is that Sm3 takes into account the variations in temperature and pressure, while Nm3 assumes standard conditions.
To convert from MMBtu (Million British thermal units) to SM3 (Standard cubic meters), you need to know the heating value of the gas in question. Once you have the heating value, you can use it to convert MMBtu to MMSCF (Million Standard Cubic Feet) and then convert MMSCF to SM3 based on the standard conversion factor of 1 MMSCF = 28.32 SM3.
Nm3 refers to gas measured at standard conditions of 0 degrees Celsius and 1 atmosphere pressure, while Sm3 refers to gas measured at standard conditions specific to the gas composition being measured. Sm3 takes into account the actual molar composition of the gas, making it more accurate for gas mixtures other than pure nitrogen.
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To convert NM3 (normal cubic meters) to metric tons, you need to know the density of the gas. Once you have the density, you can multiply the volume in NM3 by the density to get the mass in metric tons. The formula is: Mass (metric ton) = Volume (NM3) x Density (metric ton/NM3).
It is not clear what sm3 stands for but, in all likelihood, there is no valid conversion because the dimensions of the units are different.
121000000 Nanometers.
178 nm3 = ? cm3178 nm3 = (178 cm3)-7= 178 x 10-21cm3= 1.78 x 10-19cm3
Nm3 is a common unit used in industry to refer to gas emissions or exchange. It stands for Normal cubic meter. "Normal" is always dependant on the individual circumstances of each gas, pressure, and use. To convert Nm3 to a cubic foot of gas (under standard conditions), multiply by 38.04. Therefore, 1,000 Nm3/day = 1 kNm3/day = 38,040 cf/day.
Kilograms (Kg) and cubic meters (m3) are different units, representing mass and volume, respectively. To convert Kg to Nm3 (normal cubic meters, a unit used for gases), you would need to know the density of the substance in question. The conversion involves multiplying the mass in Kg by the inverse of the substance's density in Kg/m3.
I don't know what does Nm3/h mean? Please help me. Thanks a lot!
There are 1,000,000,000,000 hm3 in 1 nm3 of natural gas.