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  1. tommy75

    Conventional coal-fired power plants

    A very well written article. I do not see mention of Bio-Mass as a substitute energy source though. Trash, Wood Etc... Also mention of Reverse Osmosis as a potentional water purification method would be sweet. Like I said... Very well written.
  2. tommy75

    designing long-life engines for home biomass energy systems

    I think you could take a look at a book called the "Pegasus Project". It's about all the small gassifiers Hitler had installed on the German war machine during WWII. They had switched to these because of the oil cutoff during WWII. Regards,
  3. tommy75

    Cooling Tower Pressure Transmitter - Freeze Protection

    Ok, genius... Install a heated instrument enclosure for your particular PT and trace then insulate the lines. All of the responses to the OP are all good suggestions, I don't think bagging on ones level of experience is the correct way to gain any help!!
  4. tommy75

    What effects on turbine performance due to high inlet steam temps

    I take it there were no indications a high vibration during the temperature excursions?
  5. tommy75

    Steel Products from China

    MJ, So... if you use chinese milled tubes with good ole' American milled 5" armour plating for a blast wall around the ancient steam generators, we'd be golden like a shower? I like your theory, can I subscribe to your logic?
  6. tommy75

    Siemens USA Website - Just Venting

    Jeff, I'm picking up exactly what your putting down!! I've followed the whole BBC-ABB-ALSTOM-SIEMENS/ALSTOM-??? for quite some time and all I know is I have an ABB oh wait... an Alstom oh wait... a Siemens VAX HP, a Flender-Graffenstaden gearbox, an ABB oh wait... an Alstom Generator and...
  7. tommy75

    Soot Blower Technologies / Clinker Prevention

    Ever think of switching the G9B's to an IK-Retractable type?
  8. tommy75

    Siemens USA Website - Just Venting

    You think thats fun, try getting a "QUOTE" for a medium voltage VFD!! Not going to happen without talking to 69 different people whom all seem to be in the wrong department after taking all the information you need to give them. Almost as if you are actually placing an order!!
  9. tommy75

    5lb Superheated Steam Blowoff Concern

    The fuel may be cheap but 17 KPPH of water and chemical is NOT!! That is a substantial amount of makeup and like RM stated, air cooled condensers are high rent!! Where the compressors are located is there anything around that area that requires hot water or a condensate return heading back to...
  10. tommy75

    5lb Superheated Steam Blowoff Concern

    Joe, It sure seems that there could be somewhere in the process you could use that energy!! Maybe installing a desuperheater spray valve using boiler feedwater for attemperation and sending it back to feedwater supply or a feedwater heater, or possibly attemperate to a plate and frame have...
  11. tommy75

    Gas turbine in FSNL during steam piping cleaning

    Dario, I'm not sure where you are but there are a few companies that can bring in an auxillary boiler you could tie in to your IP steam circuit to reach your target blows if your substaion is not available when you are ready to do so. They do deliver worldwide but if cost is a factor...
  12. tommy75

    Gas turbine in FSNL during steam piping cleaning

    Dario, I take it you do not have Aux. Duct burners in the HRSG itself you can bring online? If you do that should solve your probelm for temp during blows.
  13. tommy75

    circuit breakers

    That would be one wire per lug. You can purchase tandemn circuit breakers from just about any panel manufacturer for Square D QO sreries the part number would be a QO 2020. Thats a single space breaker with two seperate circuits provided.
  14. tommy75

    Diesel Engines

    Wow... I must retract above response, I did find in fact diesel engines that run in the 60 to 100 rpm range. I just learned something today!! So with that in mind and the fact that you are seeing surging in both units I would suspect that your problem could be caused by loading on the...
  15. tommy75

    Diesel Engines

    Jack, I did googled for 100 rpm mitsubishi engines and I could not find one below 1200 rpm. I must say that is a first for me and I find very hard to fathom a 20 MW diesel generator runs at 100 rpm flywheel speed, most generators run at 1800 rpm (4-pole) or 3600 rpm (2 pole) so if in fact...
  16. tommy75

    Diesel Engines

    Jack, When the turbo surges do you see an increase in engine R.P.M.?
  17. tommy75

    Who determined to use green for open and red for closed in breakers ?

    I believe it was actually the U.S. Navy. In all Naval configurations you will always see Red=running (unsafe) and Green=stopped (safe) and since power plants adapt most Navy S.O.P.'s you find it common in most power plants.
  18. tommy75

    what will happen?

    You could check some of the info on Sync-Check relays in this thread... thread238-142685 There is some useful info and some product info!! Good luck
  19. tommy75

    Co-Firing wood and Coal

    Jeb66, Wow, you've kinda opened a can of worms on this one buts I believe it could be a good can! So, I've been burning wood for roughly 10 years now and I can tell you it's alot of work. So let me throw some things at you and we can move from there... 1. How exactly do you plan to turn...

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