Converting Gas Cogen to Combined Cycle - CR4 Discussion Thread

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train Participant Join Date: Jun 2007 Posts: 1	Converting Gas Cogen to Combined Cycle 06/14/2007 5:22 PM
	I'm a finance guy and relatively new to this stuff. I am reviewing a cogen power plant which has a steam offtaker and I'd like to replace the steam offtaker with a steam turbine and sell electricity instead. Plant size is 8,000 mmbtu/KWh. What is involved in adding a steam turbine to replace the steam offtaker? How much electricity could be generated by a steam turbine based on 200GJ / hr? Would the heat rate on the plant go down (i.e. become more efficient) because more electricity is being generated?
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MUKULMAHANT Guru Join Date: Dec 2006 Location: Long.92E,Lat.26N Posts: 1336 Good Answers: 14	#1 Re: Converting Gas Cogen to Combined Cycle 06/16/2007 2:11 AM
	What is the hottest steam condition,at what mass flow rate, you can get to run this new Steam Turbo Genset-If you stop selling the steam? And what price are you NOW getting $/MJ now? No penalties on you if you stop selling th presently sold steam? What is your in-house max. KW and daily KW-Hr requirement--if you consume what electric power you will generate? Would you like to consume 110% (with some buying) of what you will be generating? Do you want to know details of new Elec. consuming plant to enable using this 110%?
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Gwen.Stouthuysen Guru Join Date: Aug 2006 Location: Glabbeek, Belgium Posts: 1480 Good Answers: 28	#2 Re: Converting Gas Cogen to Combined Cycle 06/17/2007 11:37 AM
	Are you serious: they blow off the steam? Contact electricity generation specialists on this (Siemens, Alsthom, ...) they will be pleased to work out a real solution. __________________ "Here we are now, entertain us"
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ducon Guru Join Date: Dec 2006 Location: Hop around Toronto, New York & Karachi Posts: 1876 Good Answers: 19	#3 Re: Converting Gas Cogen to Combined Cycle 05/09/2010 12:08 AM
	steam offtaker ? Thats a WHR Boiler on the exhaust of your generators and generating steam to process. you cannot drive a steam turbine since steam is saturated. We make high pressure superheated steam WHRB with which you can drive a steam turbine , generate free electricity and sell. __________________ I not only use all the brains that I have, but all that I can borrow. Woodrow Wilson
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Users who posted comments:

ducon (1); Gwen.Stouthuysen (1); MUKULMAHANT (1)

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