GAS-L: Re: Pulse Burners?

[VHarris001@aol.com]

In a message dated 08/24/2001 2:57:19 AM Eastern Daylight Time, 
piolenc@mozcom.com writes:


> You weren't suggesting pulsating gasifiers - only
> pulse burners operating on gaseous fuel!
>
> The main advantage of pulse furnaces is rapid combustion of liquid and
> powdered fuels - seems superfluous for fuel already in gaseous form.
>
> Marc de Piolenc


Hi Marc,

The advantage(s) of valveless pulse burners that I had in mind relative to 
gasification (or gasifier stoves) might include 1) generate vacuum to draw 
gas through a negative pressure system, 2) generate exhaust pressure to 
improve heat transfer and/or pumping exhaust out a vent tube, 3) efficiently 
and thoroughly burn even tar-laden gas, and 4) simplicity in construction 
(although apparently technically challenging to get the dimensions right).  
Of course, I'm not even sure whether or not a pulse burner will run on a 
low-BTU gas.  Hence my initial query.

Other than work that the Lennox Company did on valved pulse furnaces, I'm not 
aware of much activity on pulse burners.  There is some small scale work 
being done on pulse-jet engines designed to develop thrust (rather than 
heat), but they are geared almost exclusively to refined liquid or gaseous 
fuels.  Check out:
>www.pulse-jets.com<
>www.aardvark.co.nz<

Vernon Harris