[Gasification] engine

[doug.williams]

Toby,

With respect for your ideas,but:

.>A stove/forge user insisted that a higher temperature bed, fed with high 
mc fuel (at a certain low rate) produced a better >gas of more h and lowered 
n, effectively increasing the power density delivered in the gas and a good 
thing for the internal >combustion engine.

I think you need to move this discussion to the stoves list, as it is 
clearly not a theory that will stand up as a clean gas making technology. I 
do not disagree with forge or stove combustion creating H2 in certain 
conditions, but to try and say that based on someone's else's experience, 
you could run an engine on this gas, really stretches credibility. More 
importantly, has your informant ever tried to implement their own advise?

> After seeing a German post that claimed 70% hydrogen, I am convinced there 
> is an opportunity to get more efficiency at >the gasification stage, if a 
> higher temperature were created as a close coupled second level gasifier, 
> fed with 50-80% mc >chips.

I have no idea if you have any experience with just an ordinary basic gas 
making gasifier, and I do not mean a stove or forge. One thing is for sure, 
you cannot take some written report from any source reporting research 
projects, and take it to be gospel truth. A very large amount of this type 
of reporting is an attempt to capture attention and funding, from the 
panicking EU administrations now forced to confront the issues of global 
warming.

>Both aspects of the water component (creating steam and thermal 
>disassociation) have advantage in conveying energy for >cogeneration.  They 
>would be recovered in reverse however and the lower grade heat used for 
>avoided cost in the energy >system.

All you describe takes place in a working gasifier that creates tar free 
gas. There is no advantage to make H2 over CO, as their energy is just the 
same. You cannot create disassociating temperatures without using air and 
it's nitrogen, unless you use oxygen, and create syngas. So we are back to 
were this discussion began, with how to get rid of the nitrogen, not really 
how to increase H2.

Waste heat collection from gasifiers for other use will certainly be a 
valuable resource if you have a need, but it too has a cost of collection, 
so nothing in the end is free or cheap. Certainly you can make it all out of 
scrap, and should do to develop your ideas.

> I intend on making a prototype and then remaking it as required with a 
> long term goal of a farm size unit.
>Only thing that would make it better would be getting $.10/kwh instead of 
>wholesale for the green power.

Now you reveal the true intent of your endeavour, to make money, not to 
become self sufficient!!! Good luck.

I do have end my contributions at this point.

Regards,
Doug Williams,
Fluidyne.