Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor

J. I. Eldridge, T. P. Jenkins, S. W. Allison, D. E. Wolfe, R. P. Howard

Research output: Contribution to conferencePaperpeer-review

Abstract

• Successfully demonstrated temperature measurements from Cr:GAP coated Honeywell stator vane doublet in afterburner flame of the AEDC J85-GE-5 turbojet test stand located at UTSI. - Successful coating deposition onto complex stator doublet shape by EB-PVD. - Excellent emission intensity and temperature sensitivity from 25 μm thick surface coating. - Wide temperature range 550 °C to 1025 °C measured over range of afterburner conditions. - Engine-compatible probe design demonstrated - Integrated excitation and collection. - Thermal protection of probe. - Unintended cooling of measurement surface to be corrected in future. • Future Plans - Cr:GAP downselected as one of two thermographic phosphors for upcoming AFRL VAATE temperature measurements of high-pressure turbine stator in Honeywell TECH7000 demonstrator engine. - Cr:GAP downselected as one of three thermographic phosphors for upcoming NASA VIPR temperature measurements of rotating blade surfaces in Pratt & Whitney F117 engine. - 2D surface temperature mapping by gated imaging underway at NASA GRC.

Original languageEnglish (US)
StatePublished - Sep 25 2013
EventJoint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013 - Cleveland, OH, United States
Duration: May 13 2013May 17 2013

Other

OtherJoint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013
Country/TerritoryUnited States
CityCleveland, OH
Period5/13/135/17/13

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

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