Recent content by Rick Rowlands

  1. R

    Power Required to Drive Large Flywheel

    A reserve oil pump operated from the drive system itself. I had not thought about that but it makes perfect sense. I would still use electric pumps for the prelube and circulating system, but this third pump would protect against a power failure. Originally there was a 1000 gallon oil...
  2. R

    Power Required to Drive Large Flywheel

    Thanks everyone for the help. I think I have enough information now to go on. My concern was mainly if the DC motor which I have would be sufficient to get the engine turning from a dead stop, and I believe that it will be powerful enough. I've learned a little about power, acceleration...
  3. R

    Power Required to Drive Large Flywheel

    If you would like to see more photos of the engine and our project, go here: http://community.webshots.com/user/todengine I moved the engine to this site over the last several years, and over the summer erected a building over it, including an 1893 EOT crane which was donated by a local...
  4. R

    Power Required to Drive Large Flywheel

    Oh sorry yes you are right. The wheel is 20' diameter, so d would be 9 feet as the rim is 24" square in cross section.
  5. R

    Power Required to Drive Large Flywheel

    OK it will take a me a couple of rereadings of your reply to fully understand it! :) One thing I can answer right now is that d would be 19 feet.
  6. R

    Power Required to Drive Large Flywheel

    That gave me a lot of formulas which I don't understand and even more terms which I don't know. Anything that explains it for let's say a practical man who graduated high school with straight Ds in math? I'm not an idiot when it comes to mechanics, how stuff works, etc., but am clueless...
  7. R

    Power Required to Drive Large Flywheel

    It seems that the engineersedge formulas posted by dlgoff will answer the question regarding acceleration time, as well as torque available at full speed, which is 7000 ft. lbs. So this boils the down to torque required to get the 230,000 lb. mass up to 15 RPM from a dead stop. From...
  8. R

    Power Required to Drive Large Flywheel

    I just registered for this forum as I have a problem that needs solved. I am building an industrial museum in Youngstown, Ohio, and the centerpiece of our collection is a 230 ton stationary steam engine which we saved from a local steel mill. I am designing an electric drive for it so that we...
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