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Active Contributor

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Vertical HRSG Forced/Natural Circulation

08/26/2011 6:22 AM

In our plant, vertical HRSG with triple pressure system is there. In that, HP & LP is forced circulation whereas IP is natural circulation. Why for IP forced circulation is not used & how circulation ratio will be designed for these type of boilers?

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Guru
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#1

Re: Vertical HRSG Forced/Natural Circulation

08/26/2011 6:56 AM

What does horsepower(HP) and liquid petroleum(LP) have to do with Internet Protocol(IP)? Anybody read minds when the start to abbreviate their terms?

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#2
In reply to #1

Re: Vertical HRSG Forced/Natural Circulation

08/26/2011 8:39 AM

HP = high pressure LP = low pressure IP = intermediate pressure; hence triple-pressure

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#3
In reply to #2

Re: Vertical HRSG Forced/Natural Circulation

08/26/2011 10:43 AM

So what's HRSG mean?

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Guru
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#4
In reply to #3

Re: Vertical HRSG Forced/Natural Circulation

08/26/2011 12:43 PM

Human Resources Systems Group

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#5

Re: Vertical HRSG Forced/Natural Circulation

08/26/2011 10:27 PM

The replies so far have not been much help. Your Heat Recovery Steam Generator (HRSG) may make less steam in the IP section and not require the flow to be as high. Usually the heat balance of the HRSG and turbine is relatively complex and the IP is mixed with cold reheat so has less steam demand. I have not worked with a vertical HRSG, only horizontal.

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#6

Re: Vertical HRSG Forced/Natural Circulation

08/27/2011 1:03 AM

It would seem obvious that the ratio of HR to EU makes HP FC , and LP requires FC to be FC from a materials PV, but that IP can be NC, since NC has a fortuitous combination of EA and EU. (or something like that)

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#7
In reply to #6

Re: Vertical HRSG Forced/Natural Circulation

08/27/2011 3:31 PM

Hey Woodpower do you do standup as well? This person was asking a serious question and clearly you do not have a clue.

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#8
In reply to #7

Re: Vertical HRSG Forced/Natural Circulation

08/29/2011 1:11 PM

Exactly. You got it! If people outside the inherently limited sphere of specialized work "haven't a clue" you are leaving out of your discussion a significant part of the people who join this thread, some of whom actually can understand - and sometimes help - the poster. Traditionally, the first use of acronym is Written Out , as in WO.

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Mikerho (1); orindaman (2); ozzb (2); sheaney (1); woodpower (2)

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