FDTD simulation of microwave heating of variable feed

Probing multimode applicator of microwave heating system for E‐field distribution using a silicon carbide sensor and a shielded thermocouple

“…20,21 With no simple guidelines to go by, the multimode applicators are designed with heavy dependence on multi-physicsbased advanced software programs like HFSS, COMSOL, or CST with standard simulation methods such as FEM or FDTD. [22][23][24] In spite of its size limitation, currently there is increasing use of a single mode applicator in developing different types of microwave heating systems. The recently reported work on experimental and numerical thermal analysis of heating of SiC 25 in a single mode microwave applicator system is a good step ahead in carrying out field monitoring in conjunction with validating numerical modeling results.…”

“…With field conditions less predictable, the task of field measurements becomes more complex with a need to keep track of its temporal behavior as well 20,21 . With no simple guidelines to go by, the multimode applicators are designed with heavy dependence on multi‐physics‐based advanced software programs like HFSS, COMSOL, or CST with standard simulation methods such as FEM or FDTD 22–24 . In spite of its size limitation, currently there is increasing use of a single mode applicator in developing different types of microwave heating systems.…”

Pilot scale microwave sorting of porphyry copper ores: Part 1 – Laboratory investigations

“…Investigations combining microwave heating with infrared thermal imaging (MW-IRT) have been carried out since the 1980s by a number of authors on lead-zinc sulphide, gold, copper sulphide, molybdenum sulphide and iron ores (Berglund and Forssberg, 1980;Ghosh et al, 2013;Ghosh et al, 2014;John et al, 2015;Jokovic et al, 2014;Rizmanoski and Jokovic, 2016;Sivamohan and Forssberg, 1991;Van Weert and Kondos, 2007;Van Weert et al, 2009;Wotruba and Scharrenbach, 2007). The authors reported varying degrees of sortability performance related to the mineralogy of the samples and the distribution of valuable minerals throughout the individual fragments analysed, demonstrating the applicability of microwave treatment to sorting applications.…”

Synthetic ore samples to test microwave/RF applicators and processes

“…Evaluating applicators before they are commissioned can be performed theoretically and experimentally. Jokovic et al (2014) used a theoretical approach and introduced a parameter (known as the "new smoothness parameter") for quantifying the uniformity of heating for continuously operated (non-batch) applicators. Methlouthi et al (2010) used Comsol to simulate the behaviour of the electric field inside a microwave applicator with an internal conveyor belt system.…”