mathematical model for industrial scale downdraft gasifier

[revata]

Hi,
I am looking for a mathematical model which analyses a downdraft gasifier that I can use to model our industrial scale gasifier unit. I am specifically looking for a model which considers particle movement and gas flow down the gasifier (along the gasifier axis). Biomass (wood) would be the fuel source. The heat-transfer and mass conversion (during pyrolysis) should also be considered.

If you know of a suitable source from which I can obtain this information, I would be very grateful for your help.

 

[a31ford]

Revata,

Are you still in need of this information ??

I can find the worksheets, & simulation program I used.

Reply to this thread if you still need it.

I've set "e-mail notification" for the thread, I don't want to go through all of it, IF you no longer need it.....

Greg, Also called "Mr. Fusion" by the locals

 

[revata]

Thanks Greg,

I am still interested in obatining the information.

regards
Revata

 

[a31ford]

OK, give me a couple of days to find it..

Greg

Regards,
Greg,

Called "Mr. Fusion" by the Locals

 

[a31ford]

Hi !

In regards to the post in "Eng-Tips.com"

thread124-76082

Enclosed below is the page that I got the modeling software from.

Please, if you use this model, follow the guidelines.

http://bgg.mek.dtu.dk/research/modelling/systems/

The version I downloaded, sometimes, when you open it, will give an error on the first time you use the "recalculate" button (don't know if this is a software bug, or my computer) if this does happen to you, I found that even if you close and re-open the program, it will always give that error UNLESS you do a reboot, then try again (personally, I think it's my computer, simply because it's a clunker

As far as my worksheets, I don't know if they would apply, as what I'm doing is a "District Heating" type system, approx. 30kg/h of bio-mass (quite a small system, compared to what you want, and therefore the surface area of the unit would throw your calculations off).

Let Me know.

Regards, and Happy Holidays

Greg



Regards,
Greg,

Called "Mr. Fusion" by the Locals