Why are combustible gases with a calorific value lower than 9.37 MJ/NM3 not allowed to enter the flare header?
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Why are combustible gases with a calorific value lower than 9.37 MJ/NM3 not allowed to enter the flare header?
There’s no such rule, generally it is considered that fuels with a calorific value of 2000 Kcal/m3 or less should be avoided for use in flares, out of considerations for energy savings, so as to prevent the need to add large amounts of fuel to ensure complete combustion
What is MJ in kilojoules? I just saw that the unit for the minimum ignition energy of a mixed gas is mJ. Is mJ equal to 10 to the power of negative 5 joules?
Where did the original poster see this? This calorific value is already quite high
Generally, gases with less than 2,000 kcal, that is, with less than 9.7 MJ of heat, are not allowed to have a flare header. Due to the low calorific value, combustion is incomplete and the conditions for venting are not met; it can be incinerated in an incinerator or by other methods.
SH3009-2001 4.0.2
Be sure to consult the relevant standards and specifications; if the calorific value is too low, it will be necessary to add fuel gas for combustion, which is not worth it
MJ should be 1000 KJ. That is, 10 to the power of 6 J
Where does this value come from in terms of standards? 9.37MJ/NM3