PONDERING AS TO WHY I, HAVE TO UNITS THAT ARE AT IDENTICAL LOADS MW WISE, BUT THE OTHER HAS HIGHER CO2 AT MINIUM LOADS AT ABOUT 60% OR 107 MW. THE CO2 IS ABOUT 5 TIMES AS HIGH AS THE OTHER. ALL GAS VALVES ON THESE TWO MACHINES (DLN) ARE PRETTY IDENTICAL, IGV'S THE SAME! CAN ANY ONE SUGGEST...
Thank you all for your feed back. It's been very helpfull. I do know for sure after reading are interconnect agreement and they do require us to run in AVR control, and we have, since first commissioning of last year. Again thanks for the helpful tips..
BIGDOG50
FLORIDA,
BIGDOG50
THANK YOU ALL FOR YOUR RESPONSES. THE ISSUE WERE HAVING HERE IS THAT WHEN SHUTTING THE PLANT DOWN FROM SERVICE AND THE STEAMER AT TIMES ATTEMPTS TO INCREASE IN MVARS OR LAGGING. WHEN THIS HAPPENS THE STEAMER GENERATOR ATTEMPTS TO GO BEYOND THE CAPABILITY CURVE OF .85 LEADING OR LAGGING AND ALL...
Metengr, We already have seals established we have up to 1100 psi of main steam on the HP drum. But on are start procedures they require us to place all dumps valves to the steam condenser to cascade which when a CTG is not running it defaults to a value of 877 psig. So on start up you have...
Question is if a large industrial turbine is running on Automatic voltage control can you then run in var control or power factor control on top of that? and if so what are the benefits of running var or pf control on top of AVR?
THanks for any imput!
FLORIDA,
BIGDOG50
I would like to know if anybody could tell me how to calculate what the cost is to replace 200 psig of steam. What I'm trying to do is fiqure out what it's costing us in burning natural gas in the 501F dln gas turbine to reproduce 200 psig of steam. This 200 psig of steam is sent to HP dump...
cup3bead Thanks for the comments and to the rest of your. We are continues feeding the solution. Which is control by the trasar system which tries to maintain about 215 mv on the trasar unit or .25 to .5 ppm.
FLORIDA,
BIGDOG50
I do agree, Hot starts we are Testing chemistry of the boilers at 50% load of the 501F or 95 MW. I also Agree on the O2 Level. We Have on line monitoring of this and Automatic process for Limanox and Amine Injection based on Flow rates and 02 and PH levels. This Is also proceded with Pegging...
IS there a time frame or formula that would indicate when it's okay to test the water chemistry. Standard I have used is 2 to 4 hours after a start up of a HRSG operating 1300 to 2400 psig hp steam.
FLORIDA,
BIGDOG50
IS there a time frame or formula that would indicate when it's okay to test the water chemistry. Standard I have used if 4 hours after a start up of a HRSG operating 1300 to 2400 psig hp steam.
FLORIDA,
BIGDOG50
Will Sodium Hypochlorite increase Conductivity in cooling towers? Or is there anything in its make up that will contribute to conductivty?
FLORIDA,
BIGDOG50
Thanks Cup3bead, I have been trying to relay this message. I called the Vender today to request additional info, they were supposed to email it today. Will wait and see what happens. Thanks again.....
FLORIDA,
BIGDOG50
In my experience every STG I have operated, we had Exhaust hood sprays and usually they only come on durning low loads, when the plant is starting up and shutting down. The power plant that I work at, we cycle daily but hear lately we have ran 1 X 1 durning early morning hours. When we shut...
Yes that is correct rms, and I thank you for your response. I have never worked with a vacuum Da. before, all my experience is in direct contact/stray type DA's and we only ran steam to it on start up for heating and striping. once pressure reached 20 psig then pegging steam was removed. On...
