ARNOLD AFB, Tenn.,
Military and commercial aircraft engine developers rely on simulated altitude testing conducted at
The large intercoolers, measuring 46 feet diameter at the widest section and 62 feet long, are an important configuration for handling large volumes of engine exhaust. When a turbine engine test is conducted inside the C-Plant test cells, the engine exhaust flowing from the engine can reach temperatures of approximately 850 degrees to 3,000 degrees Fahrenheit. To create the proper conditions and pressures for a test of up to 75,000 feet altitude and an engine capable of operating at 100,000 pounds of thrust, the C-Plant Exhaust System houses coolers and compressors that cool and draw the engine exhaust.
"The purpose of this project is to replace the aging cooling coils and demister pads in the WC11 and WC12 Intercoolers located in the C-Plant Exhaust yard area," Graves said. "Each intercooler, or cooler, has three banks of coils - bank A, B and C - with each bank housing 20 coils for a total of 60 coils to be replaced for each cooler.
"The intercoolers cool and dehumidify exhaust gas between stages of exhaust compression to improve compressor performance and efficiency and to keep the exhaust gas temperature within working limits of the equipment. The water-cooled coils currently located in coolers WC11 and WC12 have been in existence for the past 30 years. Leaks as well as damaged or sagging coils have reduced the efficiency of the coolers."
Planning for the project began in 2009 and involved considerations for conducting testing during the removal and installation upgrade process as well as safety in removing and handling the coils and demister pads.
Graves said, "There was a considerable amount of planning involved with the
"In addition, there was considerable planning regarding safety issues - what hazards would be encountered, what PPE [personal protective equipment] would be required, what equipment and skill level of worker was needed."
The expected completion date for the project is the summer of 2014.
TNS 30FurigayJane-140429-4717518 30FurigayJane
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