Project Details
Projekt
Autonomous structure formation processes in spray fluidized bed agglomeration
Applicants
Professor Dr.-Ing. Andreas Bück; Professor Dr.-Ing. Achim Kienle; Professor Dr.-Ing. Evangelos Tsotsas
Subject Area
Mechanical Process Engineering
Term
since 2022
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 504524147
This joint project provides models, methods and implementations for realization of autonomous structure formation processes in spray fluidized beds. This will be achieved by a combination of novel multi-rate soft-sensors to assess the development of agglomerate structure online and advanced process control schemes that allow adjustment of defined agglomerate structures. Structural and morphological models are a key part towards this goal, providing the required links between process inputs, measurable quantities and agglomerate structure. By this approach, the project addresses all central research areas of the priority program. The first project period had a focus on structure formation of homo-agglomerates; i.e., agglomerates consisting of single-material primary particles. The second funding period sees extensions in the following directions: 1) Full consideration of a process chain by incorporation of further process steps (recycle with disintegration), widening the range of possible dynamic behavior and accessible agglomerate properties, and providing additional manipulated variables for process and property control; 2) Development of novel models to describe the temporal evolution of structure and morphology of homo-agglomerates in continuously-operated fluidized bed spray agglomeration along the process chain; 3) Development of novel models to describe the temporal evolution of structure and morphology of hetero-agglomerates in continuously-operated fluidized bed spray agglomeration along the process chain; 4) Investigation of structure formation dynamics, experimentally and in process simulations; 5) Elucidation of process-structure and material-structure relationships by comprehensive characterization of agglomerate structure and composition; 6) Development and implementation of online characterization of bulk properties, transitioning from particle to product properties; 7) Development and implementation of a novel multi-rate model-based soft sensor for assessment of structure and composition development during SFB agglomeration; 8) Development of control-oriented and real time capable process models; 9) Development, implementation and evaluation of different model-based process control schemes for autonomous structure formation of homo- and hetero-agglomerates in SFB agglomeration processes with disintegration recycle. Cooperation is sought throughout the partners of the priority program, especially in the areas of process modelling, online measurement methods, model order reduction, optimization and process control.
DFG Programme
Priority Programmes
