Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

I Cooling Tent

  1. Dec 7, 2018 at 12:47 PM #1
    What are the ideal dimensions of a hyperboloid tower that would maximize the venturi effect started by thermal updraft from human body heat (assuming previous physical activity on a hot day)? Given a 40ft base, how large should the skirt be and how high off the ground? A vertically symmetrical hyperboloid may not be required.
     
  2. jcsd
  3. Dec 7, 2018 at 12:59 PM #2

    russ_watters

    User Avatar

    Staff: Mentor

    Welcome to PF!
    For a natural updraft tower, the larger the better. However, the human body won't contribute significantly to it.
     
  4. Dec 7, 2018 at 1:01 PM #3
    The intent is to act as a gathering place. Would 20+ bodies be sufficient?
     
  5. Dec 7, 2018 at 1:21 PM #4

    russ_watters

    User Avatar

    Staff: Mentor

    Probably, yes. People aren't a very dense power source, but 20 people is about 1400 W of sensible heat, which should be enough to induce a measurable convection.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted