SCALE FORMATION IN TURBOJET ENGINES (NAGAROOBRAZOVANIE V VOZDUSHNO- READTIVNYKH DVIGATELYAKH)
AIR FORCE SYSTEMS COMMAND WRIGHT-PATTERSON AFB OH FOREIGN TECHNOLOGY DIVISION
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Scale formation in jet engines was studied and the particular purpose of the present work is a study of some of these problems. It was concluded that scaling in turbojet combustion chambers is formed in zones having inadequate temperature 250-400C and too low oxygen concentration for adequate combustion. The scale was found to consist of multistage, consecutive, deep-destruction products of the organic molecule with considerable enrichment of carbon in the final product. The deposit also consisted of oxidizable hydrocarbons and nonhydrocarbon organic compounds with sulfur, oxygen and nitrogen contents. At temperatures of 200-400C in an oxygen environment, oxidizing processes transform nonhydrocarbon compounds into resins and ultimately into scale.
- Combustion and Ignition
- Jet and Gas Turbine Engines