... . Manuscript received March 13, 2018; final manuscript received April 12, 2018; published online June 19, 2018. Editor: David Wisler. 13 03 2018 12 04 2018 Combustion Flame Gas turbine technology Modeling Reliability Thermocouples The penetration of intermittent renewable...

... and the HP compressor. Figure 2 shows three thermocouples located close to the ball–raceway interfaces. Each discrete point represents a group of thermocouples which have the same longitudinal and radial positions but are evenly split in the circumferential direction. With multiple thermocouples...

... of sensors and actuators of the system. In this study, in order to measure the transfer function, physical and actual characteristics of the system were applied. Depending on the type of thermocouples (TCs) used, their activation time was eliminated using a lead compensator. In modeling of the system...

... Thermocouples Unsteady flows Prior research has demonstrated a fundamental link between in-cylinder surface temperature and the thermal composition of the trapped mass [ 1 , 2 ]. The turbulent entrainment of “cool” eddies derived from the near-wall layer at the gas–wall interface have a significant...

...; published online October 4, 2016. Editor: David Wisler. 20 06 2016 19 07 2016 Aerodynamics Computational fluid dynamics Convection Convective heat transfer Experimental Forced convection Heat transfer Natural convection Radiation Thermal Thermocouples Modern steam...

... of the Institute of Jet Propulsion and Turbomachinery—TU Braunschweig, Germany, enabling temperature measurements in the rotor body under stationary and transient operation in steam by using rotor-integrated thermocouples. Within this paper, the development of the instrumented new rotor design and all relevant...

...Michele Scervini Recent progress on the new nickel-based thermocouples for high-temperature applications developed at the Department of Materials Science and Metallurgy in the University of Cambridge is described in this paper. Isothermal drift at temperatures above 1000 °C as a function...

... fuel gas is simulated using air jets with temperatures of about 25 °C. Temperature has been used as a scalar to measure the mixing of the jets with the cross-flow. The mixture temperatures were measured using thermocouples while Pitot probes were used to obtain local velocity measurements...

... module. This assessment required measurements be taken within the engine, during operation up to maximum power, using rotor mounted thermocouples and strain gauges. The acquisition of this data necessitated the use of a telemetry system that could be integrated into the existing engine architecture...

... 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...

..., direct-injection spark-ignition engine, with the fuel injector located between the two intake valves. Negative temperature swings were observed at three piston locations during early injection, thus confirming the ability of fast-response thermocouples to capture the effects of impingement and heat loss...

... of an aeroengine. Three-component laser Doppler velocimeter measurements were made to quantify the velocity field while a rake of thermocouples was used to quantify the thermal field. The results indicate large penetration depths for the high momentum dilution jets, which result in a highly turbulent flow field...

..., Re ϕ , between 4 × 10 5 and 3.2 × 10 6 . Velocity measurements inside the rotating cavity were made using laser Doppler anemometry, and temperatures and heat flux measurements on the heated disk were made using thermocouples and fluxmeters. The velocity measurements were consistent with a three...

... when compared with present sensor technology. These stabilized type K and E thermocouples are superior to existing standard non-stabilized thermocouples because they are not prone to the typical aging effects in the 400 to 600°C (752 to 1112°F) temperature range that can result in measurements errors...