Industrial heating technologies: an overview?

This data-file summarizes different heating technologies, predominantly electric heating technologies, used to supply process heat within industry.

The file covers convection heating, infrared radiant heat, immersion coils, electric ovens and furnaces, industrial microwaves and di-electric heating, induction and electric-arc.

In each case, we summarize the technology, typical temperature ranges, efficiencies, exergy, advantages and disadvantages.

Generally process heat is 90% efficient at converting incoming energy to heat and c40% efficient in achieving useful exergetic output from the heat.  But the ranges very broadly from 10-90%, depending on the system.