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[Akshay.Gadekar]

I have question regarding Blowdown analysis.

So I was doing blowdown calculation in which I'm confused about which philosophy to follow and Why?

 

1. Lumped Vessel Calculation

       - In lumped vessel which thickness we have to specify to fire zone vessel? (Metal  Mass Calculation or according to GAD)

       - How to decide which pipes we have to add in lumped vessel calculation?

2. or Model all pipes individually in Blowdown Utility. 

 

Also, I have some other questions Please answer

> for LODMAT case why we Isochorically cool down and use that stream for Blowdown (Cooling down Isochorically leads to decrease in pressure)?

> How do we define fire zone or fire circle area in specific system?