Wednesday, August 15, 2012

Re: [MW:15089] RE: 15076] API 580 (Nov 2009) - RBI: Para 14.9(d)

Gents,
In simple words: go for liquid phase technology as a substitute for gas one ! Sometimes, simple meaning gets complicated because of confusing framing of words. Boniface, thanks for your good explanation.
Shashank Vagal

--- On Mon, 13/8/12, Obidike, Boniface (GE Oil & Gas) <Boniface.Obidike@ge.com> wrote:

From: Obidike, Boniface (GE Oil & Gas) <Boniface.Obidike@ge.com>
Subject: [MW:15081] RE: 15076] API 580 (Nov 2009) - RBI: Para 14.9(d)
To: materials-welding@googlegroups.com
Date: Monday, 13 August, 2012, 4:32 PM

Ali,

 

The statement is self-explanatory – you didn't understand it. What it means is that liquid phase imposes lesser consequences than gas phase. In molecular theory, gas molecules travel faster, occupy more space, and exert more pressure than liquid molecules. Therefore, gas leaks are more explosive than liquid leaks.

 

Hope this help.

 

 

"Quality is the Bone, Be the Dog Always"

 

Boniface Obidike

QA/QC Engineer

Speciality Connectors & Pipes

Drilling and Production Systems

GE Oil & Gas Business

Mail: Boniface.Obidike@ge.com

Office: +234(1)4629400

Mobile: +2348163479738

Home: +2348039409934

 

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of M. Ali Halai
Sent: Monday, August 13, 2012 7:35 AM
To: materials-welding@googlegroups.com
Subject: [MW:15076] API 580 (Nov 2009) - RBI: Para 14.9(d)

 

Dear All,

 

I was going through the contents of RBI and am confused with the interpretation and reasoning for the following statement

 

"Example of reducing the magnitude of consequence: substitute gas phase technology for liquid phase"

 

What I interpret from this is that the gas phase has lesser consequence than the liquid phase and its better to work with gas phase.

 

But why? I collect that gas leaks lead to explosions while liquid leaks are still leaks. For example during pressure tests we take more precautions when using air than with water.

 

Please pour in some logic to this topic.

 

 

Regards,

 

Muhammad Ali

 

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