Re: Wonderful Fans/extra water

[kenboak@stirlingservice.freeserve.co.uk]

Stovers,

Despite a period of absence from the list, I have been following your discussion regarding fans.

Might I suggest a simple idea using a jet of steam to entrap a greater volume of air up through a chimney and thus creating a forced draft using the steam ejector principle. 

Alternatively using 2 computer fans mounted on a common shaft, one being driven by the jet of steam in turbine mode, the other used as a fan to create the draft.  We used to make steam turbines as kids from old cocoa cans - before we had the luxury of computer fans with precision bearings.

On a completely different subject,  when bone dry wood is "roasted"  in an oxygen depleted atmosphere, and begins to pyrolise - will some of the byproducts of pyrolysis break down to create additional water vapour as a results of the chemical cracking of the cellulose material?  

I recently observed a great deal of water vapour released from a "dry" wood sample - much more than I expected, and I wondered if other Stovers had had experience of this.


regards,


Ken Boak  




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