This paper reviews work performed in applying advanced electromagnetics techniques in the development of coal-derived energy sources and associated conversion processes. Attention is focused in the investigations related to the electrical properties of coal at radio frequencies, and in the modeling and design of electromagnetic systems (both reflection and transmission type) for the remote detection, monitoring, and mapping of coal conversion processes. Specific applications include underground coal gasification (UCG) processes and fluidized-bed combustors (FBC). Recommendations are made of applications where electromagnetic methods should play a prominent role in the future.
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