TNT calculation of LPG explosion

[QUOTE=f81aa;222820]Hi sumon emam:

I just uploaded it. The link is:

[url]http://depositfiles.org/files/3obdyqqmn[/url]



Regards[/QUOTE]

u r great!

Hey Summon,
Are you still in trouble with your study?
Here is the link for the BLEVE and VCE manual calculation examples that I have done in the past during my study at the University of Sheffield. You can use this as a refference for your work.

[url]http://depositfiles.com/files/4wd6dl3ap[/url]

Regards,
FJ

[QUOTE=Fredo405;223375]Hey Summon,
Are you still in trouble with your study?
Here is the link for the BLEVE and VCE manual calculation examples that I have done in the past during my study at the University of Sheffield. You can use this as a refference for your work.

[url]http://depositfiles.com/files/4wd6dl3ap[/url]

Regards,
FJ[/QUOTE]

Thanks for ur contribution. Hope it will help me.

Dear f81aa and Fredo405,

Do u hav Phast software?

Here is the link for Phast/Safeti V6.51 with p**ch. It is a bit older version but still quite useful to use for risk studies.
[url]http://depositfiles.com/files/0g6882p8b[/url]
[QUOTE=sumon emam;223511]Dear f81aa and Fredo405,

Do u hav Phast software?[/QUOTE]

Dear f81aa and Fredo405,

Do u have any paper/article related to mitigation/protection to BLEVE? Is there any guideline for minimum vessel size or mass of fluid for BLEVE?

I'm searching following articles:
(1) Manas Lahoz, JL
The explosions "BLEVE". Risks and preventive measures
Madrid, Civil Protection, Seminar on BLEVE explosions. Teaching Notes

(2) NAZARIO, FN
Preventing or surviving explosions
Chemical Engineering, 1988, August 15, pgs. 102-109.

Hi sumon emam:

Let´s keep in mind that BLEVE, a type of pressure release explosion, by definition cannot occur if the liquid contents are not above their boiling points at NTP. This is the key point.

Regardless of the container size, a liquified gas, suddenly released to the atmosphere as a result of its container failure, will bleve.

All liquefied gases are stored in containers at temperatures above their boiling points at NTP and remain under pressure only so long as the container remains closed to the atmosphere. If the pressure is reduced to atmospheric pressure, such as through container failure, commonly caused by fire, the substantial heat that is in effect “stored” in the liquid causes very rapid vaporization of a portion of the liquid.

Liquid vaporization is accompanied by a large liquid-to-vapor expansion. It is this expansion process that provides the energy for propagation of kracks in the container structure, propulsion of pieces of the container, and rapid mixing of the vapor and air, resulting in the characteristic fireball upon ignition by the fire that caused the BLEVE, if vapor is flammable.

There are some interesting BLEVE videos in YouTube. Some are:

BP Malaysia Training BLEVE [ [url]http://www.youtube.com/watch?v=C59fnf7eX20[/url] ]. Size of the container is a can for camping stove.

Feu de bidons de gasoil (BLEVE) [ [url]http://www.youtube.com/watch?v=uyDWOCOF1-4[/url] ]. Size of the container is a tight gasoline barrel. Audio is in English.

Bleve [ [url]http://www.youtube.com/watch?v=9yKhgkep0-c&playnext=1&list=PL96DF5B8315D41D10&feature=results_main[/url] ]. A NFPA engineer explains BLEVE, very good video in my opinion.

Information related to mitigation/protection to BLEVE can be found in:
[LIST][*]NFPA Fire Protection Handbook[*]NFPA 58 Liquefied Petroleum Gas Code[*]API 2510 Design and Construction of LPG Installations[*]API 2510A Fire-Protection Considerations for the Design and Operation of LPG Storage Facilities[/LIST]
I´m sure there are other sources but the ones above came right away to my mind. And they have been shared in EGPET.NET and are available in the internet.

Regards

[QUOTE=sumon emam;225520]Dear f81aa and Fredo405,

Do u have any paper/article related to mitigation/protection to BLEVE? Is there any guideline for minimum vessel size or mass of fluid for BLEVE?[/QUOTE]

Hi sumon emam:

Diving (not surfing) in internet, I found an article titled "NTP 294: Explosiones BLEVE (II): medidas preventivas" which translates (if I´m not wrong) to "NTP 294: BLEVE Explosions (II): preventive measures".

It is not any of the 2 articles you are looking for. However, its 2 references are:
[LIST][*](1) MANAS LAHOZ, J.L.[*]Las explosiones "BLEVE". Riesgos y medidas preventivas[*]Madrid, Protección Civil, Seminario sobre explosiones BLEVE. Apuntes didácticos[*](2) NAZARIO, F.N.[*]Preventing or surviving explosions[*]Chemical Engineering, 1988, Agosto 15, pags. 102-109.[/LIST]
The download link is:

[url]http://depositfiles.org/files/os0j6phis[/url]

Using Google Translator or any other tools, you might find this article useful.

Regards

[QUOTE=sumon emam;225729]I'm searching following articles:
(1) Manas Lahoz, JL
The explosions "BLEVE". Risks and preventive measures
Madrid, Civil Protection, Seminar on BLEVE explosions. Teaching Notes

(2) NAZARIO, FN
Preventing or surviving explosions
Chemical Engineering, 1988, August 15, pgs. 102-109.[/QUOTE]