[Dsg-rich] List of Design Authority for Pressure Systems

[Amrit Yegneswaran]

thanks for the info tim. 
saptarshi was, i guess, the design engineer; and bob and he i'm sure are aware of the fine differences you are making. 

to me its like 6 of this half a dozen of that, all i need is the approval so that it can be presented the ERR scheduled for 12/6/16. 
as all can note this issue was with hallb engineering end of june. 
i'm not my brothers keeper. 
amrit 



From: "Timothy Whitlatch" <whitey at jlab.org> 
To: "Amrit Yegneswaran" <yeg at jlab.org> 
Cc: "David Kashy" <kashy at jlab.org>, "dsg-rich" <dsg-rich at jlab.org>, "Patrizia Rossi" <rossi at jlab.org> 
Sent: Tuesday, November 8, 2016 1:19:18 PM 
Subject: Re: List of Design Authority for Pressure Systems 

Hello Amrit, 

Per Jlab requirements, each pressure system must be reviewed by an Engineer to determine what is required by our Pressure System ES&H manual and supplement. If it meets certain minimum requirements (stored energy, pressure, fluid etc) certain actions must be taken. Relief calculations are just one of the requirements. Assigning a Design Authority another. Depending on the characteristics of the system, a Pressure System number may need to be defined as well as the accompanying documentation. The Design Engineer can make this call. 

Cheers, 


Tim Whitlatch 
Hall D Engineer 
Jefferson Lab 
600 KELVIN DR STE 5 
Newport News, VA 23606-4468 
757-269-5087 


From: "Amrit Yegneswaran" <yeg at jlab.org> 
To: "David Kashy" <kashy at jlab.org>, "Timothy Whitlatch" <whitey at jlab.org>, "dsg-rich" <dsg-rich at jlab.org> 
Cc: "Patrizia Rossi" <rossi at jlab.org> 
Sent: Tuesday, November 8, 2016 1:07:26 PM 
Subject: Fwd: List of Design Authority for Pressure Systems 

hello everyone, 
i'm at a complete loss. 
saptarshi's e-mail from july 13, 2017 shows that saptarshi had done the calculation and that joe matalevich, was supposed to check the calcs. i asked saptarshi to charge the bops account. 
so, in principle the calcs have been done and should have been checked buy joe. 
we need to send this over to tim, right? 
or am i missing something? 
amrit 


From: "Saptarshi Mandal" <mandal at jlab.org> 
To: "Amrit Yegneswaran" <yeg at jlab.org> 
Sent: Wednesday, July 13, 2016 10:04:11 AM 
Subject: Re: List of Design Authority for Pressure Systems 

Hi Amrit, 

Joe Matalevich from the Engineering group has agreed to verify my relief 
valve calculations for the RICH cooling system but he needs a charge 
code for it. Do you know if this goes to BOPS or does the RICH have its 
own charge code ? 

Saptarshi 


On 7/1/2016 12:56 PM, Amrit Yegneswaran wrote: 
> thanks. 
> 
> have a nice vacation 
> 
> 
> On 7/1/2016 11:52 AM, Saptarshi Mandal wrote: 
>> Here's a list of pressure system design authorities. I'll be out this 
>> afternoon and next week. I'll contact a design authority, once I'm 
>> back from my vacation. 
>> 
> 
> 

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