[Dsg-htcc] CO2 gas supply pressure system analysis

[Matthew Marchlik]

George,

The stored energy of the system is ~4,430 ft-lb, which is well above the 1,000 ft-lb limit so it needs to be designed and built per ES&H 6151.

I know some of this has already been installed. Please verify that MV1 from your P&ID is locked shut so the system cannot be energized until we're ready for leak testing/commissioning. You can continue to build the rest of the system per our discussion using the appropriate fittings and materials.

I will size an orifice for upstream of PR03 and also size RV01 for you. Its a simple system, so I should be done the documentation quickly.

Matt


----- Original Message -----
From: "George Jacobs" <jacobsg at jlab.org>
To: dsg-htcc at jlab.org
Cc: "Matthew Marchlik" <marchlik at jlab.org>, "Bob Miller" <rmiller at jlab.org>, "Morgan Cook IV" <mcookiv at jlab.org>, "Todd Ewing" <jtewing at jlab.org>, "Denny Insley" <DINSLEY at jlab.org>, "Calvin Mealer" <mealer at jlab.org>
Sent: Tuesday, September 19, 2017 4:31:39 PM
Subject: CO2 gas supply pressure system analysis

The DA has begun analyzing the HTCC CO2 gas supply system. 

First thing on the list - We need to eliminate the home made 90 degree fitting just upstream of the mass flow controller, or replace it with a Swagelock part. This can be accomplished in less than 10 minutes, so it should not present any issues, but this need to happen ASAP. I will gather the needed items together today. Perhaps we can do this tomorrow? 

George 

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George Jacobs
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