Design of Waste Heat Boiler for Scranton Army Ammunition Plant
MECHANICAL TECHNOLOGY INC LATHAM NY
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The Army Ammunition Plant at Scranton, Pennsylvania, has rotary hearth furnaces to heat billets for the forging operation. Mechanical Technology Incorporated established the economic and operational feasibility of waste heat recovery from the most used furnaces. The flue gas flow and temperature were measured, and an energy balance was performed. Gas flow and temperature were found suitable for a small waste heat boiler. During the course of testing a flow control problem was discovered. MTI suggests that this defect be corrected before the installation of a waste heat recovery system. After exploring several concepts, MTI designed a waste heat recovery system having minimal influence on the forging operation. The payback period of 1.54 years is attractive. Also, a rigorous economic evaluation the present worth analysis, indicates that a waste heat recovery system would be a valuable addition to the Scranton plant.
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