2782Hammock Camping Re: Oh Boy, Cold Wars II, winding up!
- Sep 7, 2003Youngblood,
>Without the wind the convection heat transfer is by a process causedI understand that the wind removes the layer of air that is right
>natural convection, which occurs because the warm air rises and is
>displaced by cooler air. When the wind blows, the process is called
>forced convection and is a much more efficient means of heat
>transfer than natural convection because it moves more air and moves
>it quicker, effectively removing your layer of insulating 'dead air'.
next to the pad more quickly than it would be removed if there was no
wind. This effectively decreases the thickness of the insulation
created by the pad.
But, if the closed-cell foam pad is truly impervious to wind then the
insulation created by the pad itself would not be decreased at all by
The problem is that in my experience the loss of insulation created
by strong wind is very great. This indicates to me that more is going
on than just the loss of dead air that would otherwise surround the
Therefore, I am skeptical.
>the three primary types that we deal with when we try to stay warmWhat about evaporation?
>in our hammocks-- radiant heat transfer, conductive heat transfer
>and convective heat transfer.
Thanks for you response. --David
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