1 reply to this topic

[gilberte]

Hi all!

 

I used API 2000 and NF EN ISO 28300 to determine the venting requirements in case of fire (emergency venting) and rainstorm (thermal inbreathing).

 

So I have values of air flowrate to release / admit into my tank. Fine!, and then how can I determine the size of the vent needed to meet these venting requirements ?

 

In French regulation, there exists a formula to calculate the cumulated vent area needed in case of fire (in Annexe 1 : http://www.ineris.fr...n_document/3991).

 

Thanks in advance

Edited by gilberte, 12 June 2015 - 09:26 AM.

[proinwv]

I am not familiar with French regulations. I can tell you that in my practice, knowing the fluid properties and required flow (which I would determine from API2000 and customer requirements if different). I would go to a vent manufacturer and look for a vent that met those requirements. I would include considering:

• cracking pressure and pressure to open fully
• reseat pressure
• possibility of interacting with other pressure devices
• % of full capacity
• construction details, including materials and ability to operate in the particular environment.