Дисертації з теми "Gas temperature measurement"
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Stewart, Lloyd Dorton. "Gas turbine inlet duct air temperature measurement using CO[subscript]2 infrared absorption." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/17367.
Повний текст джерелаBrunner, Matthias Herbert. "In-situ measurement of blade heat transfer coefficients and gas recovery temperature." kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:29954.
Повний текст джерелаParmar, J. "Turbine inlet temperature measurement for control and diagnosis in combined cycle gas turbine." Thesis, Cranfield University, 2002. http://dspace.lib.cranfield.ac.uk/handle/1826/11053.
Повний текст джерелаSamuels, Gregory James. "Measurement of gas evolution from PUNB bonded sand as a function of temperature." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1260.
Повний текст джерелаRongchai, Kanchit. "The High Temperature Condensation Particle Counter (HT-CPC) : a new instrument for a measurement of solid particulate matter." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708259.
Повний текст джерелаAlaulamie, Arwa A. "Nanoscale Temperature Measurement of Phase Transition in Water Using Novel Optical Thermometry Techniques." Ohio University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1493904666617419.
Повний текст джерелаGu, Yuxing. "Measurements of temperature and density profiles of iodine vapor between parallel plates in the transition regime using laser induced fluorescence /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9974999.
Повний текст джерелаTootla, Naeem Ebrahim. "Investigation into methods for the calculation and measurement of pulverised coal boiler flue gas furnace exit temperature." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20562.
Повний текст джерелаTootla, Naeem Ebrahim. "Investigation into methods for the calculation and measurement of pulverised coal boiler flue gas furnace exit temperature." Master's thesis, University of Cape Town, 2007. http://hdl.handle.net/11427/20562.
Повний текст джерелаSaunders, James Edward Appleby. "The development of optical measurement techniques for gas species and surface temperature on a planar SOFC methane-steam reformer." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/33380.
Повний текст джерелаLeon, Marco E. "Diode laser measurement of H₂O, CO₂, and temperature in gas turbine exhaust through the application of wavelength modulation spectroscopy." Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p1447319.
Повний текст джерелаTitle from first page of PDF file (viewed Jan. 14, 2008). Available via ProQuest Digital Dissertations. Includes bibliographical references (p. 74-76).
Johansson, Anton, and Martin Drangel. "Measurements and Modelling for Heat Transfer Corrected Exhaust Gas Temperatures in a Gasoline Engine." Thesis, Linköpings universitet, Fordonssystem, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-157637.
Повний текст джерелаGatsa, Oleksandr. "Development of acoustic sensors for the extension of measurements to high temperature in the experimental reactors." Thesis, Montpellier, 2018. http://www.theses.fr/2018MONTS092/document.
Повний текст джерелаThis Ph.D. thesis is dedicated to the development of a new generation of ultrasonic sensors devoted to fission gas characterization. More generally, these studies concern the development of instrumentation for the Jules Horowitz material testing reactor (JHR) aiming to perform in-situ control of the released gas composition for optimization of burn-up rate and fuel rod lifetime. The operation temperature of this new reactor will be in the range of 200 °C - 400 °C. Hence, the main problem concerns the development of piezoelectric material, able to operate in the required temperature range, and its integration with a sensor device.To resolve this problem, we propose to use the sodium bismuth titanate (NBT) ceramic material developed by the screen-printing technique. Several versions of piezoelectric materials were produced during this research, with the purpose of optimizing material manufacturing conditions Each material was characterized (morphological, chemical, electric, dielectric, piezoelectric and electromechanical parameters) and “tests as a function of temperature” were carried out. After demonstrating repeatability in material fabrication, the protocol for NBT sensor production was determined and a prototype of the ultrasonic sensor was fabricated.The sensor was fabricated by deposition of an active material onto an alumina substrate. After characterization of sensor properties, acoustic tests showed a high sensitivity of measurements at ambient temperature (25 °C). Furthermore, by integration of sensors into a pressurized enclosure the possibility of gas detection in the range from 50 to 70 bars was demonstrated. To verify the sensor’s applicability to gas detection under harsh temperature environment, a theoretical model based on electromechanical properties and impedance matching equations was introduced. It was theoretically demonstrated that the sensor is able to perform gas measurements from ambient temperature up to 350 °C
Lubbock, Roderick. "Turbulent velocity and temperature measurements in gas turbine hot sections." Thesis, University of Oxford, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669796.
Повний текст джерелаNewton, Barry Edward. "Thermal profile of a near-adiabatic compression process in a cylindrical tube and establishment of critical control elements for repeatable process control." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48340/1/Barry_Newton_Thesis.pdf.
Повний текст джерелаLebel-Simon, Murielle. "Mesures simultanées par DRASC de température et de concentration de CO2 dans un moteur. Application à l'étude des variations cycle à cycle liées aux gaz résiduels." Rouen, 1994. http://www.theses.fr/1994ROUES010.
Повний текст джерелаRieker, Gregory Brian. "Wavelength-modulation spectroscopy for measurements of gas temperature and concentration in harsh environments /." May be available electronically:, 2009. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Повний текст джерелаBouhara, Ammar. "Etude theorique et experimentale de la mesure par thermocouples de la temperature dans un flux gazeux instationnaire : application aux gaz d'echappement d'un moteur." Paris 6, 1987. http://www.theses.fr/1987PA066149.
Повний текст джерелаFrattina, Valerio. "Development and application of simultaneous 2D flow velocity and gas temperature measurements using thermographic phosphors under engine-relevant conditions." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC073.
Повний текст джерелаA non-intrusive laser diagnostics technique has been developed for simultaneous measurements of velocity and gas temperature in optically accessible internal combustion en-gines. The technique, thermographic PIV (T-PIV) combines phosphor thermometry and particle image velocimetry (PIV) and offers the possibility of simultaneous measurement of gas temperature and velocity.Suitable phosphor materials were selected by testing three commercially available phosphors: BAM:Eu2+, ZnO and ZnO:Zn. The lumines-cence emission and the spectral response to var-ious parameters including temperature were measured yielding a temperature-dependent cal-ibration curve to be used for signal interpreta-tion in engine experiments. The ZnO:Zn phos-phor shows the highest sensitivity to tempera-ture allowing higher temperature precision. Therefore, ZnO:Zn phosphor was chosen as the suitable candidate for engine measurements.Measurements were performed in an internal combustion engine at a speed of 1200 rpm with a sampling rate of 10 Hz between 180 and 540°CA under motored conditions. The temper-ature and velocity fields were measured success-fully at various times throughout the compres-sion and the exhaust stroke. The obtained tem-perature fields are compared with simulated bulk-gas temperatures from a 0D model-based simulation showing a temperature deviation of around 1% (200°CA) to 14% (480°CA) from the model. The measurement accuracy was found to be 55 K (18%) at 300 K and 2 K (0.3%) at 614 K for the 200-cycles average.The potential of the diagnostics was tested also in in cylinder post-combustion gases. In this case, the diagnostics was failing probably due to the characteristics of the phosphor used, which does not seem to resist to high combustion tem-peratures degrading its luminescence properties. The potential of T-PIV in post-combustion gases remains under the conditions of finding more resistant phosphor particles
In der vorliegenden Arbeit wurde eine nicht-intrusive Methode der Laserdiagnostik zur simultanen Messung von Gasgeschwindigkeit und -temperatur in einem optisch zugänglichen Verbrennungsmotor entwickelt und getestet. Diese Messmethode der thermographischen PIV (T-PIV) kombiniert Phosphorthermometrie mit Particle Image Velocimetry (PIV) und ermöglicht die simultane Messung von Geschwindigkeit und Temperatur eines Gases.Im Verlauf der Arbeit wurden drei kommerziell verfügbare Phosphormaterialien für die Motorexperimente getestet: BAM:Eu2+, ZnO and ZnO:Zn. Die optischen Eigenschaften und die Spektralantwort des Phosphors auf Parametervariationen wie Temperaturänderungen wurden gemessen. Daraus wird eine temperaturabhängige Kalibrationskurve erstellt, die zur Temperaturmessung im Motor dient. Der Phosphor ZnO:Zn wurde für Temperaturmessungen im Motor ausgewählt, da die optischen Eigenschaften des Phosphors die größte Sensitivität zu Temperaturänderungen aufweisen.In einem Verbrennungsmotor wurden Temperaturmessungen bei 1200 U/min und 10 Hz unter geschleppten Bedingungen zwischen 180°KW und 540°KW durchgeführt. Geschwindigkeit und Temperatur des Gases wurden an mehreren Kurbelwinkeln während des Verdichtungs- und Expansionstaktes gemessen und die Gastemperatur mit der Restgastemperatur einer 0D Simulation verglichen. Die Abweichung zwischen Mess- und Simulationsergebnissen beträgt 1% (200°KW) und 14% (480°KW). Die Messgenauigkeit für den Mittelwert über 200 Messzyklen beträgt 55 K (18%) bei 300 K und 2 K (0.3%) bei 614 K.Die Messmethode wurde außerdem zur Restgastemperaturmessung im gefeuerten Betrieb des optischen Motors angewandt. Jedoch konnte unter diesen Bedingungen keine validen Messungen durchgeführt werden, da der Phosphor möglicherweise bei Verbrennungstemperaturen degradiert und die Lumineszenz-Eigenschaften verändert werden. Eine erfolgreiche Anwendung von T-PIV unter motorischen Bedingungen wird künftig unter der Voraussetzung möglich sein, dass verbrennungsresistente Phosphormaterialien gefunden werden
Leimkuehler, Thomas O. "Investigation of low-pressure laser induced fluorescence for measuring temperature profiles in a rarefied gas /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9999301.
Повний текст джерелаNeveu, Fabrice. "Mesures simultanées de la température et de la vitesse dans une flamme turbulente non prémélangée méthane-air, stabilisée par un bruleur de type Bluff-Body." Rouen, 1994. http://www.theses.fr/1994ROUES079.
Повний текст джерелаCeyhan, Ismail. "A quantitative study of the feasibility of oxygen laser induced fluorescence for engineering gas temperature measurements." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43322.
Повний текст джерелаNastic, Aleksandra. "Cold Gas Dynamic Spray Impact: Metallic Bonding Pre-Requisites and Experimental Particle In-Flight Temperature Measurements." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42086.
Повний текст джерелаLui, Samson Sze-Sang. "A Data Acquisition System Experiment for Gas Temperature and Pressure Measurements on a Liquid-Nitrogen-Powered Vehicle." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc278790/.
Повний текст джерелаPalaghita, Tudor I. "Combustor Exhaust Temperature Nonuniformity Sensing Using Diode Laser Absorption." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14574.
Повний текст джерелаChoi, Sukwon. "Stress metrology and thermometry of AlGaN/GaN HEMTs using optical methods." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49108.
Повний текст джерелаFrattina, Valerio [Verfasser], and Christof [Akademischer Betreuer] Schulz. "Development and application of simultaneous 2D flow velocity and gas temperature measurements using thermographic phosphors under engine-relevant conditions / Valerio Frattina ; Betreuer: Christof Schulz." Duisburg, 2020. http://d-nb.info/1215032358/34.
Повний текст джерелаAl-Ameer, A. S. "Some studies of the properties of high Tc superconductors and their use as bolometers at low temperatures in measurements of the sound velocity in '4He gas." Thesis, University of Kent, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.232895.
Повний текст джерелаBaylis, Charles Passant II. "Improved Techniques for Nonlinear Electrothermal FET Modeling and Measurement Validation." Scholar Commons, 2007. https://scholarcommons.usf.edu/etd/620.
Повний текст джерелаJunker, Hubertus Hartmut Robert [Verfasser], Bert [Akademischer Betreuer] Voigtländer, and Markus [Akademischer Betreuer] Morgenstern. "Charge transport measurements at GaAs-nanowires and development of a low-temperature four-tip scanning tunneling microscope / Hubertus Hartmut Robert Junker ; Bert Voigtländer, Markus Morgenstern." Aachen : Universitätsbibliothek der RWTH Aachen, 2016. http://d-nb.info/1130871657/34.
Повний текст джерелаMüller, Jan. "Kondenzační technika a odvody spalin." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226844.
Повний текст джерелаSimon, Tom. "Temperaturbestimmung an IGBTs und Dioden unter hohen Stoßstrombelastungen." Master's thesis, Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-166595.
Повний текст джерелаFakhfakh, Seifeddine. "Nouvelles méthodes de caractérisation et de modélisation non-linéaire électrothermique des effets de piège dans la technologie HEMT GaN pour l’étude de la stabilité pulse à pulse dans les applications radar." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0103/document.
Повний текст джерелаThe capability of a radar transmitter to ensure clutter rejection depends mainly on its pulse-to-pulse stability, which is affected by many factors such as mechanical, thermal, and electrical effects. However, the P2P stability of a pulsed radar transmitter is linked to that of its power amplifiers, and more specifically on the active device technology. In this context, thiswork presents the analysis of this radar criterion at device level (GaNHEMTtransistor) in the case of a radar burst of RF pulses. A new on-wafer time-domain envelope measurement setup based on a 4-channel THA receiver has been developed to characterize pulse-to-pulse stability and the low-frequency drain current. While this setup was originally developed to characterize the critical specification of pulse-to-pulse stability for radar applications, it demonstrated a great potential for trap modeling in addition to the different characterization techniques of traps (pulsed I-V, low-frequency dispersion of Y22)
Lewis, Elliott William. "Development and Application of a Method for Gas-phase Temperature Measurements in Particle-laden Flows." Thesis, 2022. https://hdl.handle.net/2440/136045.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Mechanical Engineering, 2022
Hsiao, Cheng-Chiu, and 蕭澄秋. "Observation of Gas Flow and Wafer Temperature Measurement in a Model Lamp Heated Vertical CVD Reactor." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/37631571590673157762.
Повний текст джерела國立交通大學
機械工程研究所
86
An experimental lamp heated, rapid thermal, vertical single-wafer reactor was established to study the gas flow and heat transfer driven by the inertia of the inlet flow and the buoyancy due to the wafer heating. Effects of placing a thick copper plate beneath the wafer on the uniformity of the wafer temperature and effects of the showerhead on the resulting flow in the reaction chamber were examined. In particular, the flow patterns in the reactor resulting from a vertical gas jet impinging on the wafer were examined in detail. The results indicated that adding the copper plate can effectively reduce the nonuniformity of the wafer temperature. Besides, using a showerhead with finer holes in it results in a better flow distribution in the reactor. For a jet impinging on the wafer, the buoyancy induces a circular vortex roll surrounding the axis of the chamber right on the wafer. At high buoyancy-to -inertia ratio the vortex roll is highly deformed and nonaxisymmetric. Finally, the generation of new roll by splitting from the original roll was noted during the transient roll formation processes.
Mulvaney-Johnson, Leigh, Elaine C. Brown, and Philip D. Coates. "Ultrasonic measurement of residual wall thickness during gas assisted injection moulding." 2007. http://hdl.handle.net/10454/3138.
Повний текст джерелаUltrasonic technology provides a powerful and noninvasive method of in-process measurement during injection molding and extrusion. Changes in the velocity, attenuation and reflection coefficients of high frequency sound waves can be related to the state and conditions of the materials through which they propagate. The velocity of an ultrasonic wave changes with density and elastic moduli; this allows information on solidification and material properties to be collected during the molding cycle. The time of flight of the wave is a function of velocity and path length. This paper shows that it can be correlated with the residual wall thickness of polymer in the mold during gas assisted injection molding.
"High frequency gas temperature and surface heat flux measurements." Université catholique de Louvain, 2005. http://edoc.bib.ucl.ac.be:81/ETD-db/collection/available/BelnUcetd-09132005-115726/.
Повний текст джерелаTseng, Cheng-Fong, and 曾建峰. "Temperature Dependence Hall Measurement and Deep Level Transient Spectroscopy Measurement of Low Temperature MOCVD GaAs." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/87777256483874982059.
Повний текст джерела國立交通大學
電子物理學系
83
We use Temperature Dependence Hall (TDH)measurement and Deep Level Transient Spectroscopy(DLTS) measurement to investigate t- he properties of the low temperature(~500℃) MOCVD GaAs films(LT -GaAs). Using TDH measurement,we can find the concentration and act- ivation energy of the deep level trap。A sample grown at 500℃, using TEGa and TBAs as source precursors ,It is find that the h- igh concentration 3.25×1015 cm-3,trap center located at 0.485 eV below conduction band has a dramatic influence on the electr- ical properties of LT-GaAs samples. In DLTS measurement ,two deep level traps ,peaked at ~0.55 eV and ~0.8 eV below conduction band ,are observed in LT- GaAs s- amples. They are identified as oxygen trap and EL2 trap respect- ively. It is found that the concentration of oxygen trap became larger as the V/III ratio is decreased, no matter of TBAs or As- H3 being used. On the other hand ,the occurrence of EL2 is very sensitive to the growth temperature .The concentration become l- arger at low temperature .We believed that such phenomenon is m- ainly caused by the shortage of reactive Ga atom on the growing surface, resulted from a low temperature growth environment.
Li, Yen-Chi, and 李彥其. "Temperature-dependent Hall measurement on undoped GaN epilayer." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/98405530657372519600.
Повний текст джерела國立中山大學
物理學系研究所
92
The temperature-dependent Hall measurement was performed on the undoped GaN thin films grown by molecular beam epitaxy. The mobility and electron density were obtained by the T-dependent ( 4.2K~300K ) Hall measurement at magnetic field 300mT. Since the Hall coefficient is the ratio of the perpendicular electric field to the product of current density and magnetic field, we calculate the mobility and electron density to get the temperature-dependent mobility and electron density curves. We change the N/Ga ratio on the epilayer of two samples and analysis the mobility and carrier density against temperature. The sample growth procedure were (1)nitridation for 60 min, with ,at .(2) low temperature GaN buffer layer growth for 2 min, with ,at , and (3)high temperature GaN epilayer growth for 3hr, at . The N/Ga ratio of the samples are 30 and 35.
Owens, Owen C. "Wintertime measurements of pCO2 in Arctic landfast sea ice." 2008. http://hdl.handle.net/1993/3093.
Повний текст джерелаOctober 2008
Jones, Robert Carl. "Analytical Corrections to a Numerical Procedure for Estimating Gas Stagnation Temperature fromThermocouple Measurements." 2008. http://trace.tennessee.edu/utk_gradthes/430.
Повний текст джерелаJones, Robert Carl. "Analytical corrections to a numerical procedure for estimating gas stagnation temperature from thermocouple measurements." 2008. http://etd.utk.edu/2008/December2008MastersTheses/JonesRobertCarl.pdf.
Повний текст джерелаChu, Hae-Nuh. "The measurements of gas kinetic temperature during plasma assisted chemical vapor deposition of diamond films." 1991. http://catalog.hathitrust.org/api/volumes/oclc/25734859.html.
Повний текст джерелаTypescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 105-109).
Meyers, Bronwyn Clara. "The experimental flowfield and thermal measurements in an experimental can-type gas turbine combustor." Diss., 2010. http://hdl.handle.net/2263/27538.
Повний текст джерелаDissertation (MEng)--University of Pretoria, 2010.
Mechanical and Aeronautical Engineering
unrestricted
Kamar, Ramsey I. "Measurements of the interactions in a paired zero temperature lithium-6 gas throughout the BEC-BCS crossover." Thesis, 2006. http://hdl.handle.net/1911/17887.
Повний текст джерелаTaylor, Craig J., Laura E. Dieker, Kelly T. Miller, Carolyn A. Koh, and E. Dendy Sloan. "HYDRATE PARTICLES ADHESION FORCE MEASUREMENTS: EFFECTS OF TEMPERATURE, LOW DOSAGE INHIBITORS, AND INTERFACIAL ENERGY." 2008. http://hdl.handle.net/2429/1138.
Повний текст джерелаWilliams, Randall Paul. "Experimental measurement of overall effectiveness and internal coolant temperatures for a film cooled gas turbine airfoil with internal impingement cooling." 2012. http://hdl.handle.net/2152/20016.
Повний текст джерелаtext
Bharadwaj, Sudarshan P. "Medium resolution transmission measurements of CO₂ and H₂0 at high temperature and a multiscale malkmus model for treatment of inhomogeneous gas paths." 2005. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-857/index.html.
Повний текст джерела