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Question:

Natural gas from the standard into the quality of how to calculate?

For example, 5000NM3/H of natural gas into the quality should be how to calculate,

Answer:

The above algorithm is more accurate, but too cumbersomeI can introduce a simple estimation method for any gas, but not very accurateIt is known that the molecular weight of water molecules is 18 and the density is about 1 kg / LUsually converted to liquid or solid gas and gas that is at 20 degrees and a standard atmospheric pressure, the volume of about more than 1000 times, and specific to the water is about 1200 times. It is in 20 degrees, a standard pressure water vapor volume of 1.2 cubic meters.This 1.2 cubic meters of water vapor is from a liter of water (a kilogram) to change, so the water vapor density: 0.8333 kg / cubic meterThe density of natural gas:Molecular water vapor density * gas molecular weight, the amount of water=0.8333 * 16 18=0.7407 / kg / m3
The main component of natural gas is methane, molecular weight of 16, a molecular weight of methane is equal to about 16 hydrogen atoms, is about equal to the quality of the 16 protonsProton mass of 1.6726231 x 10^-27 kgTherefore, the quality of a cubic meter of natural gas:1.6726231 * (10^-27) * 16 * 6.02 * (10^23) * 1000 / 22.4=0.7192 kgNatural gas per ton:1000/0.7192 = 1390 cubic metersThe above algorithm is more accurate, but too cumbersome
One cubic meter of natural gas quality: 0.7192 kgPer ton of natural gas volume: 1390 cubic metersNatural gas transportation or trading is generally calculated in cubic metersConversion methods are as follows:Standard cubic meters of natural gas refers to 1 atmospheric pressure, when the 1 cubic meters of 20 degrees CelsiusUnder this condition, any 22.4 liter of gas contains one mole (6.02 x 10^23) moleculesOne cubic meter is 1000 litres

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