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  • Users: rmw
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  1. rmw

    Bon voyage Pat Primmer

    This is not a technical post, but I think just maybe site management might forgive me for this post. In a private forum that I am not sure is visible to all, Pat Primmer's daughter has posted on Pat's account to let us know that Pat recently passed away. His funeral will be Monday March 4. He...
  2. rmw

    5160 Spring steel vs. grease question

    Would some really good metallurgist go up to thread108-326877 and see if there is a metallurgical reason for what the OP has posted regarding Eaton's claim that grease degrades 5160 spring steel? Even if you aren't a good metallurgist, give it a try anyway. rmw
  3. rmw

    ASME Sec VIII Div 1 for anode plug

    Does ASME BPV deal with the use of a sacrificial anode plug in the pressure boundary of a stamped vessel? It seems to me that with Corrosion Allowance, additional thickness is added over and above min required metal thickness with the expectation that over time corrosion could reduced the...
  4. rmw

    GE buys Converteam

    Does this reach out and touch any Forum Members? http://www.bloomberg.com/news/2011-03-29/ge-to-buy-most-of-converteam-from-barclays-lbo-france-for-3-2-billion.html
  5. rmw

    Welding Cu-Ni tubes to SS tube-sheet

    Any forum members have any experience with welding Cu-Ni (preferably 90-10) tubes directly to a SS tube-sheet without any overlay material, any grade of SS but especially 304 or 316? And yes, I did a search on this site but came up with nothing (one thread that was about expansion). Thanks, rmw
  6. rmw

    Experience with Aerotight nuts

    I am wondering if anyone has had any particular experience with Aerotight nuts, specifically stainless nuts on stainless bolts in medium temperature service (400F/200C) where the bolts or nuts have to be repeatedly removed and reinstalled. I am looking for any issues with galling due to the...
  7. rmw

    Airless "Tweel" tires

    I did a search and didn't find anything posted in this forum since 2005. Is anyone aware of the latest developments / progress on this technology? http://auto.howstuffworks.com/tweel-airless-tire.htm rmw
  8. rmw

    ASME Sec VIII Vessel ultimate bolting selection

    If a Sec VIII Div I vessel is designed, stamped and submitted to a certifying agency with a paticular size and grade of bolt for its flanges that connect to external piping, is the ultimate installer and/or user of the vessel compelled to use the bolt size and grade that is shown on the vessel...
  9. rmw

    Schedule ##S designation

    When a schedule number has an "S" behind it, it indicates that it is a Stainless (or is it other alloy as well) pipe. An example would be 4" Schedule 10S indicates a 4 inch schedule 10 stainless pipe. What and/or where is the standard that states that the "S" designator signifies Stainless (or...
  10. rmw

    Water weight of elbow

    Imagine a piece of pipe of a couple of meters length on a set of rollers free to rotate. This piece of pipe has one 90 degree LR elbow on it and the elbow and pipe end are full of water and capped with a flat plate at each end. (No, this is not homework.) I need to determine the water weight...
  11. rmw

    I am a doubting Thomas

    I am not a CFD literate person but I have to depend on those who are as a user of CFD analysis. However, I am looking a CFD for high pressure air entering a large vessel of a heat exchanger that goes against all of my experience (35 years of crawling around in air and flue gas ducts where there...
  12. rmw

    Price of piping per foot??

    If someone popped into your cube/office/space and asked 'what is the installed price per foot for 500ft of 6" schedule 40 steel pipe insulated, lagged and heat traced, supported and anchored with ~10 elbows, welded construction' what would your response be knowing no more than that. This is...
  13. rmw

    The magnet fuel mileage myth spreads

    Since you guys that lurk here have to debunk this snake oil myth from time to time (the fuel line magnet that is) I thought you would get a kick out of this in another forum. thread798-226392 rmw
  14. rmw

    Synthetic Gasoline is coming???

    Move over middle east. When this bear is awakened..... http://www.turbomachinerymag.com/newsfeeds/storyview.cfm?artname=@200807280800PR_NEWS_USPR_____NEM013C.xml rmw
  15. rmw

    Journal Bearing re-babbiting question

    I have posted a question about the subject above in the Bearing Forum, thread821-206234 that I wish to get input from the members of this forum. Please comment there rather than here. Thanks, rmw
  16. rmw

    Generator Journal Bearing re-babbiting question

    Rather than double posting I will invite the members of this forum to visit the Bearing Forum and comment on the subject above in thread821-206234 I think that many of those of you that lurk here will be able to contribute to the discussion. Thanks, rmw
  17. rmw

    Re-metaling or re-babbiting of journal bearings

    I'd like to hear anyone's experience with re-babbiting bearings in the 240MM and larger range, good, bad, or ugly. I have a client that has to make a decision due to the fact of his having to turn down a generator shaft (possibly 40-50 mils) and have undersized bearings but can't wait for new...
  18. rmw

    Generator operating hour penalty for starts

    Does anyone have any document-able or even anecdotal information about the equivalent operating hours attributable to generator starts? (Large) motor information on this topic might also be useful. I am a ME and I am very familiar with the factor fired hour approach for combustion turbine...
  19. rmw

    Ethanol in the USA

    Now that ethanol is replacing MTBE in as a fuel oxygenizer in gasoline in the USA, keep a close watch on your automobile's fuel filters. Ethanol is an alcohol that will mix with water and pick it up and carry it with the gasoline. Right now all the fuel storage tanks in the system, including...
  20. rmw

    Moved to Houston

    thread731-139877 Well, I moved to Houston earlier this year. I found the above thread very helpful as I evaluated my offer. Don't like the traffic, but I have one question. Does one ever eat at a restaurant a second time? There are so many to try out I don't see how you could ever go back...

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