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Anonymous Poster #1

FEED for Instrumentation

10/06/2011 4:41 AM

Hi All,

I am a beginner with Instrumentation Design.

I have always admired the way the a plant has been designed.

The question I have here is, What are all the deliverables given to an Instrument design Engineer during the design phase of the project. What is the sequence of the work flow?

Who commands the team and What are all the parameters which would be given to an Instrumentation Design Engineer and How he drives the design.

Is there any system which governs the proper design for a plant. Lets say a design engineer make a scooop in the design...Is there any standard verification body who reviews the design.

Normally how long does it take to complete the feed of an average budget project.

Are the vendors for provision of equipments and instruments be decided during the FEED phase of the project...

I know it is a lot to ask in a single thread...

I have gathered few ideas through google....But still I would like to have a discussion with the experts in this forum and it would be great if you could share your experience....

Thanks
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PWSlack
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#1

Re: FEED for Instrumentation

10/06/2011 5:23 AM

Instrumentation design is dictated by the Process. Inputs to instrumentation design come principally from Process Engineering. Ideally, there should be mandatory review of the instrumentation design by Mechanical Engineering and mandatory review of the mechanical design by Instrumentation Engineering.

No plant design is complete without having had a HazOp Study carried out.

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electronick
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#2

Re: FEED for Instrumentation

10/06/2011 5:39 AM

it is very obvious that all depends on the amount of processes you have to monitor! there is not a unique answer. and for the same process you can apply different methods to use the instruments!!! about the work flow... the best way (I think) is to begin with the critical processes! you dont want to blow up the plant do you! ???

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Doorman
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#3

Re: FEED for Instrumentation

10/06/2011 9:14 AM

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redfred
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#4
In reply to #3

Re: FEED for Instrumentation

10/06/2011 12:01 PM

Perfect demonstration of a closed loop system. GA

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redfred
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#5

Re: FEED for Instrumentation

10/06/2011 4:28 PM

The conditions that must be given to the Instrumentation Design Engineer (IDE) will obviously be what parameter needs to be measured in a system and what will be the expected range that needs to be measured. If there are any hazardous conditions for the whole process (not just what will be measured) this must also be conveyed so that a safe failure condition should be considered by the IDE. What is convenient to know for the IDE is if this will be part of a feedback system for the machine or just a monitored parameter. This will imply the resolution, noise level and speed required of the instrumentation.

Now who will command this team will all depend on the corporate perspective, the design being made and the personalities of the members of the team. There is no hard and fast team hierarchy across all industries. Frequently there will be a different leader as a project progresses.

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lyn
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#6

Re: FEED for Instrumentation

10/06/2011 4:41 PM

Read these. Let me know when you are done. There will be a test later.
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Anonymous Poster #1
#7

Re: FEED for Instrumentation

10/08/2011 6:59 AM

Dear Lyn,

If you could read my question again, you would find that I was asking about FEED and not the basics of Instrumentation and Control...I am fully aware of Instrumentation, measurements and control and even if i dont know about any topic, I believe I have the ability to search for it and get the solution.

In interim I wanted to know about FEED and the phases involved in the procedure.

Thanks.
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redfred
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#8
In reply to #7

Re: FEED for Instrumentation

10/08/2011 7:53 AM

Here's a big hint for you for better blogging answers. When you use an undefined acronym and you don't like the answers you get, define the acronym.

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lyn
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#9
In reply to #7

Re: FEED for Instrumentation

10/08/2011 9:49 AM

You claim to be able to search......................then go ahead.

Your multiple questions indicate that you want someone to impart a lot of information to you so that you don't have to assimilate it yourself. People spend years in school learning this stuff. You want a tutorial, not a discussion. We can't educate you in one or two paragraphs.

When you are done reading the other information, try this

[PDF] Best Practices in Front-End Design

Oh, and heed reds advice. Make your intentions clear because, IMHO, you didn't.

Good luck.
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Anonymous Poster (1); Doorman (1); electronick (1); lyn (2); PWSlack (1); redfred (3)

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