The forum discussion focuses on optimizing the dimensions of a hyperboloid tower to enhance the Venturi effect generated by thermal updrafts from human body heat. A base diameter of 40 feet is established, with inquiries about the optimal skirt size and height. It is concluded that while larger towers are generally more effective, the contribution of human body heat is limited, requiring approximately 20 individuals to generate sufficient thermal energy for measurable convection.
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For a natural updraft tower, the larger the better. However, the human body won't contribute significantly to it.Kai G said: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.
russ_watters said:Welcome to PF!
For a natural updraft tower, the larger the better. However, the human body won't contribute significantly to it.
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.Kai G said:The intent is to act as a gathering place. Would 20+ bodies be sufficient?