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, Douglas Edward Wolfe, R. P. Howard

Research output: Contribution to conferencePaper

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
CountryUnited States
CityCleveland, OH
Period5/13/135/17/13

Fingerprint

Afterburners (engine)
Surface measurement
Temperature measurement
Phosphors
Stators
Turbines
Engines
NASA
Coatings
Physical vapor deposition
Temperature
Cooling
Imaging techniques

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Eldridge, J. I., Jenkins, T. P., Allison, S. W., Wolfe, D. E., & Howard, R. P. (2013). Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor. Paper presented at Joint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013, Cleveland, OH, United States.
Eldridge, J. I. ; Jenkins, T. P. ; Allison, S. W. ; Wolfe, Douglas Edward ; Howard, R. P. / Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor. Paper presented at Joint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013, Cleveland, OH, United States.
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Eldridge, JI, Jenkins, TP, Allison, SW, Wolfe, DE & Howard, RP 2013, 'Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor' Paper presented at Joint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013, Cleveland, OH, United States, 5/13/13 - 5/17/13, .

Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor. / Eldridge, J. I.; Jenkins, T. P.; Allison, S. W.; Wolfe, Douglas Edward; Howard, R. P.

2013. Paper presented at Joint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013, Cleveland, OH, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor

AU - Eldridge, J. I.

AU - Jenkins, T. P.

AU - Allison, S. W.

AU - Wolfe, Douglas Edward

AU - Howard, R. P.

PY - 2013/9/25

Y1 - 2013/9/25

N2 - • 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.

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Eldridge JI, Jenkins TP, Allison SW, Wolfe DE, Howard RP. Surface temperature measurements from a stator vane doublet in a turbine engine afterburner flame using an ultra-bright cr-doped GdAlO3 thermographic phosphor. 2013. Paper presented at Joint Conference on 67th Machinery Failure Prevention Technology, MFPT 2013 and 59th International Society of Automation, ISA 2013, Cleveland, OH, United States.