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  1. Reid2006

    Ball of Wax

    To answer my own question, working backwards using 1.44kw and 5 days, we obtain a heat of fusion of 97.9 kcal/kg. (X Kcal/kg)*(1518 kg)= Y Kcal (1.44KW)*(860 Kcal/KWh)*(24h)= 29721.6 Kcal/day (Y Kcal)/(29721.6 Kcal/day) = 5 days Y = 148608 Kcal X = 97.9 Kcal/Kg As originally given, the actual...
  2. Reid2006

    Ball of Wax

    Thanks all, you've been a tremendous help. I have one question: 25362, how did you arrive at 60 kcal/kg? Did you just work backwards from the known 1.44kw blanket for 5 days?
  3. Reid2006

    Ball of Wax

    There is no catch basin. The tote is a plastic container (approx. melting temp of 350F) caged in by a metal frame w/ fork truck entry on the bottom of the cage.
  4. Reid2006

    Ball of Wax

    25362: What is the formula you are using?
  5. Reid2006

    Ball of Wax

    The correct mass is approximately 1518 Kg. The whole application is indoors and starts at Room Temperature. The max heating oven capacity is 275F. Sorry, can't seem to find the heat conductivity.
  6. Reid2006

    Ball of Wax

    Ok. Here we go... The wax is a Polyethylene Glycol Monomethyl Ether (In the polymer family) Trade Name: PEG M750 Website for heating blanket: http://www.briskheat.com/products/tote-wrap-around-heater.aspx Website for Hot Box: http://www.benkoproducts.com/hotboxes.html The Hot Box: (Qty - 6)...
  7. Reid2006

    Ball of Wax

    Thanks for the input all. I will try to have as many asnwers for you today as possible.
  8. Reid2006

    Ball of Wax

    Although it sounds like it, this is actually not for a class. This is for a real life application at my plant, and the original configuration failed. We must now "prove" that the proposed new method will work before we will obtain additional funding for the project. As for the fan, I'm not...
  9. Reid2006

    Ball of Wax

    Hi all, I've got a bit of a challenge for you (I think). We need to melt a large tote (big plastic cube) full of wax. A heat wrap blanket was purchased to accomplish this, but the results were not acceptable. The heating blanket took 5 days to melt the wax, when ideally, we'd like to have it...
  10. Reid2006

    Fly Ash & Moisture Condensation

    Quick question: Our plant is installing a small Fly Ash handling system. The storage bin will be located outside, and it gets quite cold here in the winter. We are concerned about potential moisture condensation on the inside of the storage bin. As you may know, Fly Ash powder reacts quite...
  11. Reid2006

    3 Phase Motor Amperage

    Excellent! Thanks guys!
  12. Reid2006

    3 Phase Motor Amperage

    Quick (and probably painfully simple) question: I have a 3phase, 60Hz, 3HP motor wired up to 460V. Based on this information alone, is it possible for me to calculate the running aperage? Do I need to assume a power factor to accomplish this? What should that assumption be? Thanks

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