Tests have been carried out on a model rotary air heater in an attempt to study, on a laboratory scale, corrosion phenomena under conditions similar to those experienced in industrial practice.

The acid dew-point of the combustion gases used varied from 240 to 320 F and maximum corrosion occurred at surface temperatures within the range 215–240 F. The results confirm previous conclusions as to the influence of the acid dew-point and of the sulfur trioxide content of the gases on corrosion.

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Copyright 1955 by the National Association of Corrosion Engineers.
1955
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