... induced by a different choice of the total temperature measurement section. With this goal in mind, the study focused on the analysis of a commonly found discrepancy between the measurements at the impeller outlet section and at the stage exit section. Based on the experimental data collected...

...Tae Ho Kim; Jin Woo Song; Yong-Bok Lee; Kyuho Sim Identifying thermal characteristics of gas foil bearings (GFBs) provides an insight for successful implementation into high speed oil-free turbomachinery. The paper presents temperature measurements of a bump type GFB floating on a hollow shaft...

... condition of 463 km/h (250 kn) at 7620 m (25,000 ft) by matching Mach number, equivalence ratio, and Sauter mean diameter of the fuel spray. Using a thermocouple rake, high resolution temperature measurements were obtained in the combustion chamber exit plane. Following the previously published procedures...

... any longer with time (steady state). Schematic view of GFB rotordynamic test rig with cartridge heater. T 1 – T 16 , T amb , and T h represent locations of temperature measurement. Figure 3 shows a schematic view of the high temperature GFB...

.../S0022112071002088 , 49 , pp. 319 – 326 . 12 06 2006 28 06 2006 porous materials foams convection hydrodynamics pressure measurement temperature measurement Cast or foamed materials, such as porous carbon foam, typically have an open, interconnected void structure that enables...

... October 2002 01 March 2003 15 04 2005 gas turbines rotational flow swirling flow boundary layer turbulence rotors stators liquid crystals Fourier series heat transfer temperature measurement Preswirl nozzles are often used in gas turbines to deliver the cooling air...

..., 2003, Paper No. 2003-GT-38231. Manuscript received by IGTI, October 2002, final revision, March 2003. Associate Editor: H. R. Simmons. 16 June 2003 01 October 2002 01 March 2003 24 11 2004 cooling temperature measurement gas turbines swirling flow rotors stators...

... two-color thermometry principle. The technique utilized a charge coupled device camera and optical filters having either wide or narrow wavelength bandpass filters. The results obtained were compared to evaluate the accuracy of the temperature measurements. The 2D emissivity distributions were also...

... engine simulations. The quasilinear approach of nonlinear functions is used in the form of transfer functions. A simple engine controller was specially designed for these simulations. temperature distribution flames furnaces video cameras temperature measurement...

... temperature measurement pressure measurement Data analysis seeks to determine the health of an engine and, when a performance deficiency is found, to identify the cause(s) for that deficiency. Overall performance measures such as specific fuel consumption and exhaust gas temperature (EGT) are used...

... flame temperature and temperature fluctuations has been determined by analyzing the spectra of spontaneous emission from the C 2 radicals. Hancock , R. D. , Bertagnolli , K. E. , and Lucht , R. P. , 1997 , “ Nitrogen and Hydrogen CARS Temperature Measurements in a Hydrogen/Air...

...J. R. Markham; H. M. Latvakoski; S. L. F. Frank; M. Lu¨dtke Advanced thermal barrier coatings (TBCs) are increasingly being used in high-performance turbine engines. For optimized use of the coatings, accurate surface temperature measurements are required in the combustion environment. Current...

.... An experimental facility including a burner and thermal signature detection of flames at high frequencies was designed and built for this purpose. Compensated micro thermocouples were used for temperature measurements in order to provide detailed information on the thermal characteristics of the premixed swirling...

...M. De Lucia; R. De Sabato; P. Nava; S. Cioncolini 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...

... to almost 2.0 percent. This increase in output also translates into significant cost savings. In addition, the stabilized thermocouples have given the turbine maintenance technicians more confidence in the accuracy of their temperature measurements and resulted in improved troubleshooting and decision...