Numerical simulations show that this concept enables controlled and optimized microwave processing.
This is made possible by our previously reported research on the successful synthesis of AMP nanospheres via microwave processing.
As microwave processing offers uniform heating at a lower temperature, it is being successively utilized in the fabrication of ceramics as well as carbon fibers at low temperature and time (Reddy et al. 2009; Chae et al. 2010).
This paper is the outcome of an extensive and comprehensive literature review in the area and mainly summarises several microwave processing aspects and its usefulness in understanding the microwave material interaction and the role of dielectric properties.
Fundamental knowledge of the dielectric properties of vermiculite, its interaction with electromagnetic fields and bulk materials handling technology was used to design and construct a continuous high throughput microwave processing system operating at 2.45 GHz.
The current work also highlights the possible identification of efficient microwave processing via forecasting of heating dynamics (heating rates and hot spot formations) for a few test materials, based on the material invariant analysis as a function of Nw, fp and fw.
Based on the concept that the hydration reaction of cementitious materials comprises three main periods a dormant period, an acceleration period, and a deceleration period process parameters were determined for the most effective period (acceleration) for producing paste via microwave processing.
The lack of dielectric properties data has often been named as one of the reasons that has hampered the simulation of microwave processing of biomass feedstock and process design.
The microwave processing of a material is non-trivial due to the highly nonlinear process dynamics associated with the occurrence of constructive and destructive interferences, based on the sample dimension and material dielectric properties.
Energy efficient microwave processing is important for enhanced material processing.
