Abstract
The use of exhaust gas heat exchangers to preheat combustion air in forge and heat treat furnaces is discussed. The temperature range of the applications are 1200o -2400o F. The installations discussed involve both new and retrofit construction. Cost and performance data are presented as the various case histories are discussed. The effects of the hot air installations on equipment operations and temperature uniformity are discussed.
McMann, F. C.; Thurman, J. (1983). Waste Heat Recovery in the Metal Working Industry. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from
https : / /hdl .handle .net /1969 .1 /94608.