[cinwendy]

Hi,

I was searching the web to find material for my project and I found this http://www.bakker.org/cfm/publicatio...p5finalweb.pdf , which is very similar to my project. I read through the slides, but the slides does not tell explicitly the method to incorporate those fermentation kinetics and phenomena into FLUENT. Besides the transport equation, they include rate of change, age distribution, adsorption and reaction source term.

Are they all UDS? Or Species Transport? And how to associate those with the different phase? I am deeply appreciate if anyone can tell me more about those in page 12, 18, 19, and 31.

Thank you very much in advance!

[cinwendy]

In page 31, there is a list of stuff inside, copied below:
- Lignocellulose particles (10 eqns.).
– Cellulose-enzyme complex. (10 eqns.).
– Cells.
– Ethanol.
– Glucose.
– Ammonia.
– Lignin.
– Enzymes (2 eqns.).
– Lignin-enzyme complex
– Cellobiose.
– CO2.
My interpretation:
- Lignocellulose particles ----------> solid
– Cellulose-enzyme complex. --------> soluble, big molecule
– Cells. --------------------------------------> insoluble but not solids
– Ethanol.------------------------------------> soluble, small molecule
– Glucose.-----------------------------------> soluble, small molecule
– Ammonia.---------------------------------> soluble, small molecule
– Lignin-------------------------------------> part of the solids
– Enzymes (2 eqns.) -------------------> should be soluble, one will adsorb onto the solids, one freely floating in water
– Lignin-enzyme complex ------------> ?? enzyme adsorb onto particulate
– Cellobiose.------------------------------> soluble, small molecule
– CO2.--------------------------------------> soluble, small gas molecule
My questions:
1, How to define these species, especially the soluble ones? They are so different!
2, What about the cells?
3, For the 2 enzymes, their mass conservation is
total_of_enzyme_1 = free_floating_enzyme_1 + enzyme_1_substrate_complex .
How to include this into FLUENT?
Thank you in advance!