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eng_aly
Participant

Join Date: Mar 2007
Posts: 4

Hot Reheat Pressure in Steam Engine Turbine

08/30/2007 1:47 PM

what are the main reasons that can cause hot reheat pressure to increase and LP bypass valve open in steam turbine 393 mw , the set point for reheat pressure is 43 bar , the LP by pass valve open at full load, and in diffrent loads the reheat pressure is alwyes higher than design value
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Cornstoves
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Join Date: Dec 2005
Posts: 200
Good Answers: 8
#1

Re: hot reheat pressure in steam turbine

08/31/2007 5:09 AM

Clean the condenser. PV=MRT, pressure equals temperature

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pkmntpc
Active Contributor

Join Date: Aug 2007
Location: Delhi india
Posts: 20
#2

Re: hot reheat pressure in steam turbine

08/31/2007 1:24 PM

dear sir

can you check up your governing system. at times if the ip control valve tries to close then the hrh pr rises. during that condition first the lpbp opens then if the pressure is not relieved the safety valve pops.

you have to give more details to find out more.

bye have a nice time.

pkmohapatra

pkmntpc
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