GAS-L: commercial furnace use of the pulse-jet concept

[Mike Norris <mnorris@dekaresearch.com>]

I was reviewing old e-mails and remembered that Lennox makes
a pulse jet furnace.

http://www.lennoxdavenet.com/product/residential/default.htm?/product/reside
ntial/how_pulse_furnace_works.htm

Mike Norris

> -----Original Message-----
> From:	VHarris001@aol.com [SMTP:VHarris001@aol.com]
> Sent:	Friday, September 21, 2001 10:10 AM
> To:	adkarve@pn2.vsnl.net.in
> Cc:	stoves@crest.org; gasification@crest.org
> Subject:	GAS-L: Re: Needed research
> 
> In a message dated 09/20/2001 7:56:09 AM Eastern Daylight Time,
> adkarve@pn2.vsnl.net.in writes: 
> 
> 
> 
> 
> 	Dear Vernon, 
> 	we too are working on stove designs that would provide secondary air
> to the burning biomass, without having to use a blower. From that point of
> view, we are interested in knowing even about your failures, so that we
> avoid making the same mistakes. One of our failures consisted of
> introducing into the stove firebox a set of tubes, which were supposed to
> draw outside air and introduce it into the flame. We expected this device
> to make use of the ventury effect of the air current going from the grate
> towards the pot. The air of course had no intention of doing anything of
> this sort. 
> 	A.D.Karve 
> 	
> 
> 
> 
> Unfortunately, there are many examples of failures in the pulse combustion
> field.  I'm reading with interest the ongoing testing of valveless pulse
> combustors being discussed at <www.pulse-jets.com> under the forum
> section.  There are also many plans for valved pulse-jets and a few plans
> for valveless pulse jets on the web site, and many valuable links. 
> 
> Of course, these pulse-jets are intended to be optimized for generation of
> thrust, so they are noisy and perhaps not particularly fuel efficient.
>  Still they demonstrate that the principle is sound and might be suitable
> for adaptation to stove and gasification.  In fact, it might eventually
> prove to be the case that pulse combustion is more suitable for blowing
> and burning than for generating thrust :-) 
> 
> It's worth taking a look at the technology.  As I come across relevant
> information, I'll be sure to post it here. 
> 
> Vernon Harris 
> 

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