What does it mean by LNG flare venting with a back pressure of 20 kPa?
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What does it mean by LNG flare venting with a back pressure of 20 kPa?
It is the outlet resistance caused by the amount of air released, as well as the venting pipelines (accessories) resulting from that air release, within the framework of your design for air release~~
The torch system is at slightly positive pressure, and the path after venting has a pressure 20 KPa higher than the outside atmosphere.
There is a slight positive pressure of 20 KPA inside the flare, which ensures smooth combustion before the gases are released into the atmosphere. For the pipelines leading to the flare, it is also necessary to take into account the frictional losses along the pipeline to ensure smooth flow into the flare
Back pressure provides the driving force for flow, preventing the flame from flowing back into the flare header and causing danger.
Flow resistance, as well as prevention of tempering. Is 20 kPa that high?