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Blowdown Conditions

blowdown depressurization

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#1 raman123

raman123

    Junior Member

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Posted 22 November 2017 - 12:57 PM

Hello,

 

I am a junior engineer and am doing some blowdown and depressurization calculations. I am a bit confused regarding initial conditions for fire case blowdown. I assume that pressure should be the design pressure. Should we take the corresponding temperature from ideal gas law for initial temperature. The vessel is gas filled only. What should be assumption of starting temperature. 

 

RS



#2 fallah

fallah

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Posted 22 November 2017 - 02:19 PM

 

I am a junior engineer and am doing some blowdown and depressurization calculations. I am a bit confused regarding initial conditions for fire case blowdown. I assume that pressure should be the design pressure. Should we take the corresponding temperature from ideal gas law for initial temperature. The vessel is gas filled only. What should be assumption of starting temperature. 

 

 

RS,

 

The depressurization in case of fire starts at the temperature reached by the system due to the fire heat input which is calculated by relevant simulator while performing the simulation.





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