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Time Lag

Tim_14
Tim_14 Member Posts: 23
in THE MAIN WALL
I am sizing a boiler feed pump however, The system has 3 different returns with 3 different time lines.
#1 return gets hot in about 15min
#2 gets hot in about 30min
#3 gets it at about 45min
You guessed it which one do I use.
Tim

Comments

  • Tim_14
    Tim_14 Member Posts: 23


    test
  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,600
    Tim

    that's a good one. Are the distances that much different? Or might it be a missing vents or bad traps that's creating the difference in lags?
    Retired and loving it.
  • Tim_14
    Tim_14 Member Posts: 23
    Time Lag

    The system has a very poor venting system. and the traps where never maintained for 4 years. I thought about this one too and im begining to ask myself should i correct these problems first then redo the calculation.
    what do you think?
    Tim
  • Unknown
    Unknown Member
    Insulation on piping?

    Boiler fired to the load?

    Returns clean?

    Water clean?

    Near boiler piping right?

    All can contribute to slow heating, and slow returning condensate, in addition to the venting.

    Noel


  • DanHolohan
    DanHolohan Member, Moderator, Administrator Posts: 16,600
    It's so unusual

    that I think I'd go after that first before sizing a receiver that would be as big as a hot tub.
    Retired and loving it.
  • Tim_14
    Tim_14 Member Posts: 23


    Hot tub??
    It looks like the DC heater on the last steam ship I was on
    Got lots to learn from ye land lubbers
    Tim
This discussion has been closed.

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