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Recent content by Matt Knight

  1. Matt Knight

    Pipe Length Calculation

    Haha, I wish it was homework, if it were homework I'd just not bother doing it!
  2. Matt Knight

    Pipe Length Calculation

    Hi, The pipe runs through a section of open air (although it is shielded top and sides from wind) so we wanted to calculate if this section of pipe allows sufficient cooling so were going to use this calculation to evaluate that. I'd really appreciate some help with it, although I'm sure in the...
  3. Matt Knight

    Pipe Length Calculation

    Okay, sorry if I'm being stupid. So from the equations for heat transfer coefficients from the link given in the first reply I get the equation bellow. How do I link that with cp*mass_flow*delta_T ?
  4. Matt Knight

    Pipe Length Calculation

    Thanks, I've been looking at a few things but have been confused about the effect of the moving fluid through the pipe. I've found similar things to what you sent in your link, but will there be different effects because the fluid is moving through the pipe? My initial idea was to "slice up"...
  5. Matt Knight

    Pipe Length Calculation

    Hi, I'm trying to work out a formula for calculating the heat loss of hot air flowing through a pipe in cold air, so that eventually I can spec the length of pipe needed. It's been a while since I'v done any thermodynamics so some help would really be appreciated. I've summarised the problem in...
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