Developement of a Detailed Particle Model for Biomass Pyrolysis

Abstract

Goals:

  • Literature study regarding the thermo-chemcal conversion of biomass
  • Implementing pyrolysis reactions into an existing single particle model
  • Validation of the new model

Results:

  • A validated detailed particle model for thermo-chemical biomass conversion

Description:

Computational fluid dynamics (CFD) is a versatile tool. Not only can large-scale processes be investigated, but it is also possible to depict processes on single-particle scale. In cooperation with K1-MET GmbH we explore the conversion behaviour of individual char particles. The scales for these particles are in the range of multiple micrometers up to a few centimeters. This investigation is based on a detailed particle model, which resolves not only the flow field around the particle but also the processes inside the particle. This detailed particle model was implemented in the CFD toolbox OpenFOAM.

The goal of this thesis is to extend the existing model for char conversion in such a way, that it is applicable to the thermo-chemical conversion of biomass. Therefore, in the first step, extensive literature research should be performed about existing biomass conversion models and the reaction mechanisms used therein. This knowledge should then be applied in order to implement the gas-solid reactions needed for biomass pyrolysis into OpenFOAM and to extend the existing model where necessary.

After the development and implementation of the new biomass particle model, experimental data is available for validation of the new model. At the end of this thesis, a validated detailed particle model for the thermo-chemical conversion of biomass particles should be implemented in OpenFOAM.

 

Prerequisites:

  • Basic knowledge in OpenFOAM (CFD-Software)
  • Basic knowledge in C++ and Python are of advantage
  • Sufficient knowledge of German or English

Start:

as of now

Contact:
DI Dr. Markus Bösenhofer
Matthias Kiss MSc.
Ao. Univ. Prof. DI Dr. Michael Harasek
Financial renumeration possible for excellent work