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mohammad rafi
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Join Date: Feb 2012
Posts: 5

Low Vacuum in Condensor

02/16/2012 5:50 PM

dear

what is the effect when turbine running with low vaccum & why steam flow increase with low main steam pressure or high back pressure in condenser
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Crabtree
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Join Date: Jul 2007
Location: Commissariat de Police, Nouvions, occupied France, 1942.
Posts: 2599
Good Answers: 77
#1

Re: Low Vacuum in Condensor

02/17/2012 3:31 AM

If you've got low vacuum in the condenser, Uncle, then you will have a low pressure drop across the turbine. So to get the same amount of power from it, your steam flowrate must increase; it's as simple as that.

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Mukesh0861
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Join Date: Dec 2010
Posts: 377
Good Answers: 20
#2

Re: Low Vacuum in Condensor

02/20/2012 2:00 AM

For further confusion, your condensor load will increase, turbine efficiency will decrease and a stage will come your turbine will trip.
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Wal
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Join Date: Jun 2011
Location: Phnom Penh
Posts: 4019
Good Answers: 102
#3

Re: Low Vacuum in Condensor

02/20/2012 5:53 AM

Welcome to CR4 Mohammad.

Not too long ago there was another CR4 thread about a problem with a condenser and its vacuum.

There was lots of good stuff to learn proffered by many there. It was discussed in some detail.

Perform a search of CR4 to see if you can find that particular thread and have a read.

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