Details:
Multi Fuel Operated Integrated Clean Energy Process: Thermal Desorption 3R (Recycle-Reduce-Reuse) Technology (TDT-3R MULTIFUEL)
Funding
EUFP5(NNE5/363/2001)
Participants
Terra Humana (HU), ECN (NL), Rostock University (DE), Aristotle University of Thessaloniki (GR), CERTH/CSFTA (GR), CEREOL (HU), Latvian State Institute of Wood (LA), United European Environment Controls (UK)
Technology Used
Ansys Fluent
Challenge:
Simtec developed of a mathematical model for the simulation of low–temperature solid fuel carbonization in an industrial, heated rotary kiln reactor. A simple, yet comprehensive, chemical model was proposed, accounting for fuel drying, devolatilization, and char gasification.
Solution:
The model solves for the heterogeneous reactions between gaseous and solid species and is incorporated in the general Eulerian multiphase framework. Computations were performed in a three-dimensional geometry of an industrial scale rotating kiln and in a two-dimensional cross section. The Ansys Fluent CFD code was appropriately customized to incorporate the features of the proposed model.
Results contained the gaseous and solids phase velocities, solid volume fractions, residence times, reaction rates, and reactant and product concentrations as a function of the gasification temperature. The simulations were complemented by additional parametric studies.
