LPG VAPORIZER RELIEF AT FIRE
LPG VAPORIZER RELIEF AT FIRE
(OP)
DEAR ALL,
We have a vertical LPG vaporizer with steam, in the case of fire in order to calculate the flow do we take the vapors produced by the steam at normal operation plus the vapors produced by the heat of the fire or only from the fire since the steam can not give its latent heat and condese because of the fire?
regards,
roker
We have a vertical LPG vaporizer with steam, in the case of fire in order to calculate the flow do we take the vapors produced by the steam at normal operation plus the vapors produced by the heat of the fire or only from the fire since the steam can not give its latent heat and condese because of the fire?
regards,
roker





RE: LPG VAPORIZER RELIEF AT FIRE
That approach has worked for years and there's no movement to change it.
RE: LPG VAPORIZER RELIEF AT FIRE
Fire is usually considered a "blocked-in" scenario (no feed, no products,) so no credit for vapors leaving, but also no penalty for additional heat input from the steam, just as Don said.
Cheers,
Joerd
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RE: LPG VAPORIZER RELIEF AT FIRE
During fire contigency, the process and utility system would be isolated around the incident area or shutdown accroding to plant shutdown and isolation philosophy (normally)...
JoeWong
Chemical & Process Technology
RE: LPG VAPORIZER RELIEF AT FIRE
In addition to that normal for fire sizing of LPG vessel better dont take any credit factors there by we can be even more safe.what u say ???correct me if wrong.