🚀 go-pugleaf

rbw3q@rayleigh.mech.Virginia.EDU (Brad Whitehurst) writes:
>>
>	Quite a lot of solar heating systems were/are set up that
>way.  They are not as high performance as forced circulation, but
>then, they don't have all the hardware, either.  The cooling systems
>in some old engines were thermosyphon also.  And any process where you
>are heating a vessel from the bottom could exhibit this behavior,
>couldn't they?  (you'd have convection cells, rather than water
>running in a pipe, though)

>-- 

>Brad Whitehurst    |   Aerospace Research Lab
>rbw3q@Virginia.EDU |   We like it hot...and fast.


A couple of fairly recent applications include some very inexpensive solar
hot water systems, that circulate heated water from the collector to the 
storage tank by virtue of the convective effect.

There is a device that uses heat from a wood stove to heat water in a coil
 that rises to a special condenser above the stove.  The heated water then 
circulates around a closed heating loop and back to the coil in the stove.

Its all 'passive'.  Is not the old coffee percolator an example of this effect?

allen
-- 
Allen Gordon 		         *If the folly of but one of us was changed to*
Research Associate         	 *intelligence, and divided amongst a thousand*
gordon@tramp.colorado.edu   	 *toads, each would be more intelligent than  *
				 *Aristotle				      *