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Tank Depressurisation Through Vent Pipe Calculation

fanno flow depressurisation choked flow venting

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#1 lambonumber5

lambonumber5

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Posted 08 April 2021 - 05:50 AM

Hi Guys, 

I have been trying to write a model to calculate the depressurisation of hydrogen out of a tank through a vent line. I've used the fanno flow calculations as the tanks are at about 350bar so the flow will be choked. The results are in the expected ballpark but no one in my company can validate the results. I'd really appreciate it if someone with more knowledge and experience in this field would check what I've done.

Much appreciated 

Dan

Attached File  Depresurization calculator.xlsm   498.65KB   16 downloads






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