Experimental investigation of air-cooled turbine blades in turbojet engine IX : evaluation of the durability of noncritical rotor blades in engine operation

One of 5,163 reports in the series: NACA Research Memorandums available on this site.

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Description

The durability of five different structural or cooling configurations or combination of both of air-cooled blades made of noncritical materials was investigated in a modified turbojet engine. The greater part of the investigation was conducted at an engine speed of 11,500 rpm, a turbine-inlet temperature of approximately 1670 degrees F, and a cooling-air to combustion gas flow ratio per blade of 0.05. The results of the investigation indicated that air-cooled blades made of noncritical metals can be operated for extended periods of time in engines at current inlet temperatures; however, before these blades are considered completely satisfactory for gas-turbine application, ... continued below

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Stepka, Francis S & Hickel, Robert O December 5, 1951.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 144 times . More information about this report can be viewed below.

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  • Main Title: Experimental investigation of air-cooled turbine blades in turbojet engine IX : evaluation of the durability of noncritical rotor blades in engine operation
  • Series Title: NACA Research Memorandums

Description

The durability of five different structural or cooling configurations or combination of both of air-cooled blades made of noncritical materials was investigated in a modified turbojet engine. The greater part of the investigation was conducted at an engine speed of 11,500 rpm, a turbine-inlet temperature of approximately 1670 degrees F, and a cooling-air to combustion gas flow ratio per blade of 0.05. The results of the investigation indicated that air-cooled blades made of noncritical metals can be operated for extended periods of time in engines at current inlet temperatures; however, before these blades are considered completely satisfactory for gas-turbine application, some means such as coatings is required to inhibit the oxidation of the blades.

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  • : 93R16322
  • URL: http://hdl.handle.net/2060/19930087032 External Link
  • Report No.: NACA-RM-E51J10
  • Center for AeroSpace Information Number: 19930087032
  • Archival Resource Key: ark:/67531/metadc59175

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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  • December 5, 1951

Added to The UNT Digital Library

  • Nov. 17, 2011, 10:13 p.m.

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  • Jan. 27, 2017, 7:28 p.m.

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Stepka, Francis S & Hickel, Robert O. Experimental investigation of air-cooled turbine blades in turbojet engine IX : evaluation of the durability of noncritical rotor blades in engine operation, report, December 5, 1951; (digital.library.unt.edu/ark:/67531/metadc59175/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.