Accession Number : AD0749654

Title :   Air Cooling of Nozzle Blades with Deflectors,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Moslov,L. A. ; Ronkin,L. M.

Report Date : 25 AUG 1972

Pagination or Media Count : 10

Abstract : Consideration of an open air cooling system design with coolant air discharge through the leading nozzle vane edges as a means of increasing the reliability of deflector type gas turbine working elements when the inlet air flow temperature is elevated before injection. Criteria are given for estimating (1) the average nozzle vane profile perimeter temperature attainable at given coolant air flow rates and (2) the inhomogeneity of temperature distribution over this perimeter as basic characteristics of the cooling efficiency of the system. Experiments show that the cooling efficiency is increased appreciably when 15 percent of coolant air is discharged through additional outlets in the trailing edges of the deflectors. (Author)

Descriptors :   (*GAS TURBINE BLADES, *AIR COOLED), GAS FLOW, DEFLECTION, USSR

Subject Categories : Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE