PLUGGING OF COOLING HOLES IN FILM-COOLED TURBINE VANES

The plugging of vane cooling holes by impurities in a marine gas turbine was closely simulated in burner rig tests where dopants were added to the combustion products of a clean fuel (Jet-A). Hole plugging occurred when liquid phases, resulting from the dopants, were present in the combustion products. Increasing flame temperature and dopant concentration resulted in an increased rate of deposition and hole plugging.

• Corporate Authors:

  Department of the Navy

  The Pentagon
  Washington, DC  United States  20350
• Authors:
  • Deadmore, D L
  • Lowell, C E
• Publication Date: 1977-4

Media Info

• Pagination: 23 p.

Subject/Index Terms

• TRT Terms: Blades (Machinery); Combustion; Cooling; Films (Coatings); Fuel additives; Gas turbines; Liquids; Marine diesel engines; Phase transitions
• Old TRIS Terms: Combustion products; Combustion technology; Film cooling; Liquid phases; Marine propulsion
• Subject Areas: Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00166672
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: NASA-TM-X-73661
• Files: TRIS
• Created Date: Oct 29 1978 12:00AM