Thèses sur le sujet « Low pressure turbine material »
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He, Binyan. « Fatigue crack growth behaviour in a shot peened low pressure steam turbine blade material ». Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/388077/.
Texte intégralWilliams, Charles P. « Low Pressure Turbine Flow Control with Vortex Generator Jets ». University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470741489.
Texte intégralVerona, Claire L. « Stress corrosion cracking of low pressure steam turbine blade and rotor materials ». Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10165.
Texte intégralSeumangal, Nicole. « Influence of the heat treatment procedure on the stress corrosion cracking behaviour of low pressure turbine blade material FV566 ». Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/27427.
Texte intégralVon, Hagen William J. « Analysis of the L1A, L1M, L2A, and L2F Low-Pressure Turbine Blades Using Large-Eddy Simulation ». University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1470045392.
Texte intégralNaicker, Leebashen. « Influence of heat treatment condition on the stress corrosion cracking properties of low pressure turbine blade steel FV520B ». Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25377.
Texte intégralGompertz, Kyle Adler. « Separation Flow Control with Vortex Generator Jets Employed in an Aft-Loaded Low-Pressure Turbine Cascade with Simulated Upstream Wakes ». The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1243990496.
Texte intégralTERNER, MATHIEU. « Innovative materials for high temperature structural applications : 3rd Generation γ-TiAl fabricated by Electron Beam Melting ». Doctoral thesis, Politecnico di Torino, 2014. http://hdl.handle.net/11583/2527509.
Texte intégralFlage, Alexander Paul. « Computational Investigation of Low-Pressure Turbine Aerodynamics ». Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27915.
Texte intégralSsebabi, Brian. « Experimental evaluation of a low temperature and low pressure turbine ». Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86563.
Texte intégralENGLISH ABSTRACT: The potential benefits from saving energy have driven most industrial processing facilities to pay more attention to reducing energy wastage. Because the industrial sector is the largest user of electricity in South Africa (37.7% of the generated electricity capacity), the application of waste heat recovery and utilisation (WHR&U) systems in this sector could lead to significant energy savings, a reduction in production costs and an increase in the efficiency of industrial processes. Turbines are critical components of WHR&U systems, and the choice of an efficient and low cost turbine is crucial for their successful implementation. The aim of this thesis project is therefore to validate the use of a turbine for application in a low grade energy WHR&U system. An experimental turbine kit (Infinity Turbine ITmini) was acquired, assembled and tested in a specially designed and built air test bench. The test data was used to characterise the turbine for low temperature (less than 120 Celsius) and pressure (less than 10 bar) conditions. A radial inflow turbine rotor was designed, manufactured and then tested with the same test bench, and its performance characteristics determined. In comparison with the ITmini rotor, the as-designed and manufactured rotor achieved a marginally better performance for the same test pressure ratio range. The as-designed turbine rotor performance characteristics for air were then used to scale the turbine for a refrigerant-123 application. Future work should entail integrating the turbine with a WHR&U system, and experimentally determining the system’s performance characteristics.
AFRIKAANSE OPSOMMING: Die potensiële voordele wat gepaard gaan met energiebesparing het die fokus van industrie laat val op die bekamping van energievermorsing. Die industriële sektor is die grootse verbruiker van elektrisiteit in Suid-Afrika (37.7% van die totale gegenereerde kapasiteit). Energiebesparing in die sektor deur die toepassing van afval-energie-herwinning en benutting (AEH&B) sisteme kan lei tot drastiese vermindering van energievermorsing, ‘n afname in produksie koste en ‘n toename in die doeltreffendheid van industriële prosesse. Turbines is kritiese komponente in AEH&B sisteme en die keuse van ‘n doeltreffende lae koste turbine is noodsaaklik in die suksesvolle implementering van dié sisteme. Die doelwit van hierdie tesisprojek is dus om die toepassing van ‘n turbine in ‘n lae graad energie AEH&B sisteem op die proef te stel. ‘n Eksperimentele turbine stel (“Infinity Turbine ITmini”) is aangeskaf, aanmekaargesit en getoets op ‘n pasgemaakte lugtoetsbank. Die toetsdata is gebruik om die turbine te karakteriseer by lae temperatuur (minder as 120 Celsius) en druk (minder as 10 bar) kondisies. ‘n Radiaalinvloeiturbinerotor is ook ontwerp, vervaardig en getoets op die lugtoetsbank om die rotor se karakteristieke te bepaal. In vergelyking met die ITmini-rotor het die radiaalinvloeiturbinerotor effens beter werkverrigting gelewer by diselfde toetsdruk verhoudings. Die werksverrigtingkarakteristieke met lug as vloeimedium van die radiaalinvloeiturbinerotor is gebruik om die rotor te skaleer vir ‘n R123 verkoelmiddel toepassing. Toekomstige werk sluit in om die turbine met ‘n AEH&B sisteem te integreer en die sisteem se werksverrigtingkarakteristieke te bepaal.
Ding, Bowen. « Aerodynamics of low pressure steam turbine exhaust systems ». Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290137.
Texte intégralSharpe, Jacob Andrew. « 3D CFD Investigation of Low Pressure Turbine Aerodynamics ». Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1495872867696744.
Texte intégralOtieno-Alego, Vincent. « Pitting corrosion of low alloy steels in simulated low pressure steam turbine environments ». Thesis, Queensland University of Technology, 1993. https://eprints.qut.edu.au/107093/1/T%28S%29%2014%20Pitting%20corrosion%20of%20low%20alloy%20steels%20in%20simulated%20low%20presuure%20steam%20turbine%20environments.pdf.
Texte intégralReichstein, Georg A. [Verfasser]. « Secondary Circulation in a Low-Pressure Turbine / Georg A. Reichstein ». München : Verlag Dr. Hut, 2014. http://d-nb.info/1064559948/34.
Texte intégralMarx, Martin [Verfasser]. « Unsteady Work Processes in a Low Pressure Turbine / Martin Marx ». München : Verlag Dr. Hut, 2016. http://d-nb.info/109781775X/34.
Texte intégralVogt, Damian. « Experimental Investigation of Three-Dimensional Mechanisms in Low-Pressure Turbine Flutter ». Doctoral thesis, KTH, Energy Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-205.
Texte intégralThe continuous trend in gas turbine design towards lighter, more powerful and more reliable engines on one side and use of alternative fuels on the other side renders flutter problems as one of the paramount challenges in engine design. Flutter denotes a self-excited and self-sustained aeroelastic instability phenomenon that can lead to material fatigue and eventually damage of structure in a short period of time unless properly damped. The design for flutter safety involves the prediction of unsteady aerodynamics as well as structural dynamics that is mostly based on in-house developed numerical tools. While high confidence has been gained on the structural side unanticipated flutter occurrences during engine design, testing and operation evidence a need for enhanced validation of aerodynamic models despite the degree of sophistication attained. The continuous development of these models can only be based on the deepened understanding of underlying physical mechanisms from test data.
As a matter of fact most flutter test cases treat the turbomachine flow in two-dimensional manner indicating that the problem is solved as plane representation at a certain radius rather than representing the complex annular geometry of a real engine. Such considerations do consequently not capture effects that are due to variations in the third dimension, i.e. in radial direction. In this light the present thesis has been formulated to study three-dimensional effects during flutter in the annular environment of a low-pressure turbine blade row and to describe the importance on prediction of flutter stability. The work has been conceived as compound experimental and computational work employing a new annular sector cascade test facility. The aeroelastic response phenomenon is studied in the influence coefficient domain having one blade oscillating in various three-dimensional rigid-body modes and measuring the unsteady response on several blades and at various radial positions. On the computational side a state-of-the-art industrial numerical prediction tool has been used that allowed for two-dimensional and three-dimensional linearized unsteady Euler analyses.
The results suggest that considerable three-dimensional effects are present, which are harming prediction accuracy for flutter stability when employing a two-dimensional plane model. These effects are mainly apparent as radial gradient in unsteady response magnitude from tip to hub indicating that the sections closer to the hub experience higher aeroelastic response than their equivalent plane representatives. Other effects are due to turbomachinery-typical three-dimensional flow features such as hub endwall and tip leakage vortices, which considerably affect aeroelastic prediction accuracy. Both effects are of the same order of magnitude as effects of design parameters such as reduced frequency, flow velocity level and incidence. Although the overall behavior is captured fairly well when using two-dimensional simulations notable improvement has been demonstrated when modeling fully three-dimensional and including tip clearance.
Burton, Zoe. « Analysis of low pressure steam turbine diffuser and exhaust hood systems ». Thesis, Durham University, 2014. http://etheses.dur.ac.uk/10531/.
Texte intégralSINGH, NAVTEJ. « A STUDY OF SEPARATED FLOW THROUGH A LOW-PRESSURE TURBINE CASCADE ». University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1109095348.
Texte intégralMcQuilling, Mark W. « DESIGN AND VALIDATION OF A HIGH-LIFT LOW-PRESSURE TURBINE BLADE ». Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1189792837.
Texte intégralAntinori, Giulia [Verfasser]. « Uncertainty analysis and robust optimization for low pressure turbine rotors / Giulia Antinori ». Aachen : Shaker, 2017. http://d-nb.info/1138179019/34.
Texte intégralHabermann, Jan [Verfasser]. « Reynolds Stress Anisotropy in a Two-Stage Low-Pressure Turbine / Jan Habermann ». München : Verlag Dr. Hut, 2018. http://d-nb.info/1172581606/34.
Texte intégralHollon, Brian. « EXPERIMENTAL INVESTIGATION OF SEPARATION IN A LOW PRESSURE TURBINE BLADE CASCADE MODEL ». UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_theses/304.
Texte intégralRamakumar, Karthik. « ACTIVE FLOW CONTROL OF LOW PRESSURE TURBINE BLADE SEPARATION USING PLASMA ACTUATORS ». UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/359.
Texte intégralBury, Mark Eric. « Influence of Reynolds number and blade geometry on low pressure turbine performance ». Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/50310.
Texte intégralCranstone, Alexander William. « Low pressure turbine design for a future high bypass ratio aero-engine ». Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610530.
Texte intégralАндріїшин, Mихайло Петрович, Костянтин Іванович Капітанчук, Назар Михайлович Андріїшин, Kostiantyn Kapitanchuk et Константин Иванович Капитанчук. « Natural gas turbine flow meters calibrations in low gas flow pressure situations ». Thesis, Національний авіаційний університет, 2018. http://er.nau.edu.ua/handle/NAU/39801.
Texte intégralУ статті визначено критерії калібрувань турбінних витратомірів природного газу. Запропоновано використовувати значення числа Рейнольдса як критерій, на який не впливає термодинамічні параметри та фізичні характеристики середовища, параметри турбінної решітки. модель і механічний стан витратоміра. Для експерименту використовували турбінний витратомір SM-RI-X-KG1000, DN200 з об'ємом потоку від 80 м3 / год до 1600 м3 / год, а тиск змінювався від 100 кПа до 700. Результати теоретичних розрахунків та даних експериментальних досліджень для числа Рейнольдса показано на графіку швидкості турбінного витратоміра на залежність від тиску. Встановлено, що витратомір, призначений для середовища низького тиску, повинен бути відкалібрований для фактичного діапазону тисків робочого середовища та значень температури
В статье определены критерии калибровок турбинных расходомеров природного газа. Предложено использовать значение числа Рейнольдса как критерий, на который не влияет термодинамические параметры и физические характеристики среды, параметры турбинной решетки. модель и механическое состояние расходомера. Для эксперимента использовали турбинный расходомер SM-RI-X-KG1000, DN200 с объемом потока от 80 м3 / ч до 1600 м3 / ч, а давление изменялось от 100 кПа до 700 Результаты теоретических расчетов и данных экспериментальных исследований для числа Рейнольдса показано на графике скорости турбинного расходомера в зависимости от давления. Установлено, что расходомер, предназначенный для среды низкого давления, должен быть откалиброван для фактического диапазона давлений рабочей среды и значений температуры
Ahmad, Mansoor. « Experimental assessment of droplet impact erosion of low pressure steam turbine blades ». Aachen Shaker, 2009. http://d-nb.info/998626953/04.
Texte intégralSchulze, Christian [Verfasser]. « Influence of Combined Inflow Distortions on a Low Pressure Turbine at Low Reynolds Numbers / Christian Schulze ». München : Verlag Dr. Hut, 2018. http://d-nb.info/1166482634/34.
Texte intégralSanders, Darius Demetri. « CFD Modeling of Separation and Transitional Flow in Low Pressure Turbine Blades at Low Reynolds Numbers ». Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/29303.
Texte intégralPh. D.
Green, Brian Richard. « Time-Averaged and Time-Accurate Aerodynamic Effects of Rotor Purge Flow for a Modern, Rotating, High-Pressure Turbine Stage and Low-Pressure Turbine Vane ». The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1322535026.
Texte intégralSchneider, Carsten [Verfasser]. « On the Unsteady Secondary Flow Inside a Low Pressure Turbine Stage / Carsten Schneider ». Aachen : Shaker, 2015. http://d-nb.info/1071527738/34.
Texte intégralKessar, Alexandros. « L2F measurements for low engine order excitations in a high pressure turbine stage / ». Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-376.
Texte intégralLipfert, Martin [Verfasser]. « Unsteady Aerodynamics of a Low Pressure Turbine at Off-Design Operation / Martin Lipfert ». München : Verlag Dr. Hut, 2015. http://d-nb.info/1079768971/34.
Texte intégralMurawski, Christopher G. « Unsteady flows in a two-dimensional linear cascade with low-pressure turbine blades / ». The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488192960170437.
Texte intégralFuhrer, Christopher [Verfasser]. « Numerical Investigation on Spontaneous Condensation in Low-Pressure Steam Turbine Aeroelasticity / Christopher Fuhrer ». Düren : Shaker, 2021. http://d-nb.info/1238497632/34.
Texte intégralJayasuriya, Jeevan. « Experimental Investigations of High Pressure Catalytic Combustion for Gas Turbine Applications ». Doctoral thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-134445.
Texte intégralQC 20131125
Ahmad, Mansoor [Verfasser]. « Experimental assessment of droplet impact erosion of low-pressure steam turbine blades / Mansoor Ahmad ». Aachen : Shaker, 2009. http://d-nb.info/1161302182/34.
Texte intégralMUTNURI, PAVAN KUMAR. « SIMULATION OF FLOW THROUGH LOW-PRESSURE LINEAR TURBINE CASCADE, USING MULTI-BLOCK STRUCTURED GRID ». University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1070493086.
Texte intégralKürner, Matthias [Verfasser]. « The Effect of low Reynolds Number on Transition and Unsteadiness in a Low Pressure Turbine Rig / Matthias Kürner ». München : Verlag Dr. Hut, 2014. http://d-nb.info/1052375707/34.
Texte intégralPOONDRU, SHIRDISH. « Large-Eddy Simulation and Active Flow Control of Low-Reynolds Number Flow through a Low-Pressure Turbine Cascade ». University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1204873699.
Texte intégralNessler, Chase A. « Characterization of Internal Wake Generator at Low Reynolds Number with a Linear Cascade of Low Pressure Turbine Blades ». Wright State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=wright1270749309.
Texte intégralCuthbertson, Grant. « An experimental investigation of dropwise and filmwise condensation of low pressure steam in tube banks ». Thesis, Heriot-Watt University, 1999. http://hdl.handle.net/10399/1246.
Texte intégralMcQuilling, Mark. « EXPERIMENTAL STUDY OF ACTIVE SEPARATION FLOW CONTROL IN A LOW PRESSURE TURBINE BLADE CASCADE MODEL ». UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/320.
Texte intégralSingh, Gursharanjit. « The study of the interactions between a low pressure steam turbine and axial-radial diffuser ». Thesis, Queen Mary, University of London, 2015. http://qmro.qmul.ac.uk/xmlui/handle/123456789/15029.
Texte intégralZhang, Xue Feng. « Separation and transition control on ultra-high-lift low pressure turbine blades in unsteady flow ». Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.613985.
Texte intégralMemory, Curtis L. « Turbulent Transition Behavior in a Low Pressure Turbine Subjected to Separated and Attached-Flow Conditions ». The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1290996104.
Texte intégralReimann, Daniel D. « Effects of Spanwise and Discrete Disturbances on Separating Boundary Layers on Low Pressure Turbine Blades ». Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1761.pdf.
Texte intégralBabajee, Jayson. « Detailed numerical characterization of the separation-induced transition, including bursting, in a low-pressure turbine environment ». Phd thesis, Ecole Centrale de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00984351.
Texte intégralDickel, Jacob Allen. « Design Optimization of a Non-Axisymmetric Endwall Contour for a High-Lift Low Pressure Turbine Blade ». Wright State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=wright1534980581177159.
Texte intégralPluim, Jonathon Douglas. « DESIGN OF A HIGH FIDELITY WAKE SIMULATOR FOR RESEARCH USING LINEAR CASCADES ». The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1244039010.
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