This paper describes a technique for the analysis of temperature measurement data obtained by using a radiation thermometer in a heavy duty gas turbine (PGT2 from Nuovo Pignone GE). The main sources of error are shown and analyzed and their influence on measurements and techniques used to correct data read. Success in significant error elimination in acquisition results in a more realistic and correct description of target temperature distribution

Issue Section:
Gas Turbines: Controls, Diagnostics, and Instrumentation
Keywords:
gas turbines, temperature measurement, temperature distribution, heat radiation, measurement errors, error analysis, bolometers
Topics:
Errors, Radiation (Physics), Temperature, Temperature distribution, Temperature measurement, Thermometers, Gas turbines, Blades, Signals, Emissivity
1.
Beynon, T. G. R., 1981, “Turbine Pyrometry-An Equipment Manufacturer’s Viewpoint,” ASME Paper 81-GT-136.
2.
Beynon, T. G. R., 1982, “Infrared Radiation Thermometry Applied to the Development and Control of Gas Turbine Engines,” Proceedings, International Conference on Infrared Technology, Butterworth Scientific, Ltd., Sevenoaks, U.K., pp. 3–16.
3.
DeWitt, P. D., and Incropera, F. P., 1988, “Physics of Thermal Radiation,” Theory and Practice of Radiation Thermometry, edited by P. D. DeWitt and G. Nutter, Wiley, New York, NY, pp. 21–89.
4.
Douglas, J., 1980, “High-Speed Turbine Pyrometry in Extreme Environments,” Proceedings, New Orleans Gas Turbine Conference, ASME, New York, NY, pp. 335–343.
5.
Kirby, P. J., Zachary, R. E., and Ruiz, F., 1986, “Infrared Thermometry for Control and Monitoring of Industrial Gas Turbines,” Proceedings, International Gas Turbine Conference and Exhibit, Duesseldorf, Germany, ASME Paper 86-GT-267.
6.
Schulemberg, T., and Bals, H., 1987, “Blade Temperature Measurements of Model V84.2 100 MW/60 Hz Gas Turbine,” Proceedings, International Gas Turbine Conference and Exhibit, Anaheim, CA, ASME Paper 87-GT-135.
7.
Scotto
,
M. J.
, and
Eismeier
,
M. E.
,
1980
, “
High-Speed Noncontacting Instrumentation for Jet Engine Testing
,”
ASME J. Eng. Power
,
102
, pp.
912
–
917
.
8.
De Lucia, M., and Lanfranchi, C., 1992, “An Infrared Pyrometry System for Monitoring Gas Turbine Blades: Development of a Computer Model and Experimental Results,” 1992, IGTI-92, Paper No. 92-GT-80. ASME, Journal of Engineering for Gas Turbines and Power, January 1994, Vol. 116, pp. 172–177.
9.
DeLucia, M., and Masotti, G., 1994, “A Multimeasurement Infrared Pyrometry System for Determining Temperature Distribution in Gas Turbines,” IGTI 94, Paper No. 94-GT-39, ASME, Journal of Engineering for Gas Turbines and Power, April 1995, Vol. 117, pp. 341–346.
10.
Love, T. J., 1988, “Environmental Effects on Radiation Thermometry,” Theory and Practice of Radiation Thermometry, edited by P. D. DeWitt and G. Nutter, Wiley, New York, NY, pp. 189–229.
11.
Ono, A., 1988, “Methods for Reducing Emissivity Effects,” Theory and Practice of Radiation Thermometry, edited by P. D. DeWitt and G. Nutter, Wiley, New York, NY, pp. 565–623.
Copyright © 2001
 by ASME
You do not currently have access to this content.