How much liquid is in a heatpipe?

Sojuuk

2[H]4U
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Jan 18, 2003
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I have done tons of googling and have yet to find any reply to something even remotely similar to this.

Does anyone know how much liquid is in a heatpipe? Is it half full? 90% full? I MUST KNOW!?
 
guy making very long heatpipe:
http://www.youtube.com/watch?v=LU4eynU6R-8

he used 8ml acetone in that thing.

edit: they definitly don't use anywwhere near 50%. The tube needs just enough liquid to fill the inside with the vapor of the liquid and also dampen the entire inner surface of it (the inner surface should be covered with a "wicking" material)
 
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