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phillipwon
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Join Date: Nov 2011
Posts: 42

HRSG Drum Hold Up Time

01/24/2013 2:50 AM

Hello guys! I've seen a lot of HRSG specs where drum hold up times are specified. However usually the HP drum has a lower hold up time than LP drums (e.g. 2 and 5 minutes respectively). What could be the reason for this?
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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: HRSG drum hold up time

01/24/2013 3:11 AM

It has something to do with the flowrate through each drum.

http://cr4.globalspec.com/thread/82859

How about a chat with the Process Engineer that specified it?

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