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Keywords: Sensors
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Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2018, 140(11): 112805.
Paper No: GTP-18-1131
Published Online: July 9, 2018
... react with ammonia (NH 3 ) to form nitrogen and water vapor. The reaction is influenced by several variables, including stored ammonia on the catalyst, exhaust gas composition, and catalyst temperature. Currently, measurements from NO x and/or NH 3 sensors upstream and downstream of the SCR are used...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2018, 140(9): 092605.
Paper No: GTP-17-1451
Published Online: June 15, 2018
... nonlinear dynamics of fluid flow. They found that the correlation method has the potential advantage over the travelling wave method because it uses a single sensor for detection of changes in the character of pressure traces for different high-speed compressor configurations. The generation...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2018, 140(7): 072506.
Paper No: GTP-17-1119
Published Online: April 16, 2018
... vibration parameters from BTT data is proposed. The proposed method requires only two BTT sensors and applies least mean square algorithm to identify frequency and amplitude of blade vibration. These parameters can be further used as blade health indicators to predict defect growth in the blades. Robustness...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052603.
Paper No: GTP-17-1406
Published Online: January 10, 2018
... is measured by noncontact sensors (NCSs) and strain gauges (SGs). The circumferential blade amplitude distribution is found to differ depending on vibration modes and nodal diameters (NDs), but the relative tendency is almost the same for all types of operation at each mode and all NDs. Therefore, the median...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 051601.
Paper No: GTP-17-1295
Published Online: December 27, 2017
... = signal generator voltage Z leak = leakage impedance Z load = load resistor impedance Z sensor = sensor electrode impedance Δ T = relative temperature difference In future work, using a calibration method such as a needle contact probe will improve the probes...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052503.
Paper No: GTP-17-1446
Published Online: November 28, 2017
... November 28, 2017. Editor: David Wisler. 09 08 2017 18 08 2017 Sensors Structural dynamics Vibration Vibration of a mistuned bladed rotor [ 1 – 3 ] is an important issue in the design and operation of a gas turbine engine. Mistuning is a unique problem in the sense that small...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2018, 140(5): 052401.
Paper No: GTP-17-1361
Published Online: November 21, 2017
...Giuseppe Fabio Ceschini; Nicolò Gatta; Mauro Venturini; Thomas Hubauer; Alin Murarasu The reliability of gas turbine (GT) health state monitoring and forecasting depends on the quality of sensor measurements directly taken from the unit. Outlier detection techniques have acquired a major importance...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2018, 140(4): 041507.
Paper No: GTP-17-1257
Published Online: November 7, 2017
... conversion Flame Fuel combustion Fuels Gas turbine technology Gaseous Measurement techniques Sensors Swirling Thermoacoustics Thermodynamics Turbulence Turbulent Unsteady Unsteady flows Visualization Wave propagation Coupled behavior Combustion Avoidance of thermoacoustically...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032402.
Paper No: GTP-17-1360
Published Online: October 25, 2017
...Giuseppe Fabio Ceschini; Nicolò Gatta; Mauro Venturini; Thomas Hubauer; Alin Murarasu Anomaly detection in sensor time series is a crucial aspect for raw data cleaning in gas turbine (GT) industry. In addition to efficiency, a successful methodology for industrial applications should be also...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032401.
Paper No: GTP-17-1359
Published Online: October 25, 2017
...Giuseppe Fabio Ceschini; Nicolò Gatta; Mauro Venturini; Thomas Hubauer; Alin Murarasu Statistical parametric methodologies are widely employed in the analysis of time series of gas turbine (GT) sensor readings. These methodologies identify outliers as a consequence of excessive deviation from...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. March 2018, 140(3): 032505.
Paper No: GTP-17-1376
Published Online: October 17, 2017
...: 1.5 μ m). The shaft is rigidly mounted on a radial force sensor equipped with strain gauges (sensitivity: 99.6255 mV/N). The relative motion between bearing and shaft is measured by two perpendicular eddy current sensors (sensitivity: 10.5972 V/mm, 10.1533 V/mm). Fig. 3 Device...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102810.
Paper No: GTP-16-1541
Published Online: May 16, 2017
... of the ionized species formed in different zones in the fuel spray. A new approach of defining a number of virtual ion sensing probes was introduced to the model to determine the influence of sensor design and location relative to the spray axis on the signal characteristics. The contribution of the premixed...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102603.
Paper No: GTP-16-1450
Published Online: May 9, 2017
... control Measurement techniques Component maintenance Sensors Combustion Component operations Gas turbine electrostatic monitoring technology, which employs electrostatic sensors to detect the debris in gas path, is an on-line health monitoring technique [ 1 ]. The principle of gas path...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2017, 139(10): 102806.
Paper No: GTP-17-1079
Published Online: May 2, 2017
... estimation methodologies generally depend upon either a mass air flow (MAF) sensor or a manifold absolute pressure (MAP) sensor individually. Methods based on either sensor have their own advantages and disadvantages. Some production vehicles are equipped with both MAF and MAP sensors to offer air charge...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2017, 139(9): 091601.
Paper No: GTP-16-1364
Published Online: April 11, 2017
... and validation. 26 07 2016 15 02 2017 Aerodynamics Droplet Experimental Measurement techniques Sensors Turbines Unsteady Unsteady flows References [1] Haraguchi , M. , Nakamura , T. , Yoda , H. , Kudo , T. , and Senoo , S. , 2013 , “ Nuclear Steam...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. July 2017, 139(7): 072605.
Paper No: GTP-16-1395
Published Online: March 7, 2017
... . [8] Hölle , M. , Bartsch , C. , Hönen , H. , Fröbel , T. , Metzler , T. , and Jeschke , P. , 2015 , “ Measurement Uncertainty Analysis for Multi-Hole Pressure Probes Combined With a Temperature Sensor ,” International Gas Turbine Congress 2015 , pp. 1527 – 1538 . [9...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. April 2017, 139(4): 041503.
Paper No: GTP-16-1350
Published Online: October 18, 2016
... OURNAL OF E NGINEERING FOR G AS T URBINES AND P OWER . Manuscript received July 19, 2016; final manuscript received July 21, 2016; published online October 18, 2016. Editor: David Wisler. 19 07 2016 21 07 2016 Combustion Combustors Flow induced vibration Sensors...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2016, 138(11): 111601.
Paper No: GTP-15-1466
Published Online: May 17, 2016
... with the end goal of producing an onboard aircraft diagnostic sensor. By measuring the amount of light that is transmitted due to the effects of scattering and absorption in the presence of particles over a range of concentrations, a relationship between particle diameters and the laser light extinction...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. November 2016, 138(11): 112801.
Paper No: GTP-16-1051
Published Online: May 3, 2016
... not have any related feedback. Recently, explicit torque feedback control has been proposed in the literature using either estimated or measured torques as feedback to control the torque using the slow torque path only. We propose the usage of a surface acoustic wave (SAW) torque sensor to measure...
Journal Articles
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2016, 138(8): 081601.
Paper No: GTP-15-1536
Published Online: March 15, 2016
... of the thermocouple diameter has been studied for both conventional nickel-based thermocouples and the new nickel-based thermocouple. The new nickel-based thermocouple experiences a much reduced drift compared to conventional sensors. Tests in thermal cyclic conditions have been undertaken on conventional and new...
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