Dissertations / Theses on the topic 'Turbocharger Turbine'
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Dale, Adrian Peter. "Radial, vaneless, turbocharger turbine performance." Thesis, Imperial College London, 1990. http://hdl.handle.net/10044/1/11363.
Full textPesiridis, Apostolos. "Turbocharger turbine unsteady aerodynamics with active control." Thesis, Imperial College London, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.498148.
Full textCao, Teng. "Pulsating flow effects on turbocharger turbine performance." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708901.
Full textFutoryanova, Valentina. "Radial-turbine mistuning." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/270194.
Full textNishimoto, Keane T. (Keane Takeshi) 1981. "Design of an automobile turbocharger gas turbine engine." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/41810.
Full textIncludes bibliographical references (leaf 24).
The turbocharger gas turbine engine was designed with the intent of being built as a demonstration for the Massachusetts Institute of Technology Department of Mechanical Engineering courses 2.005 and 2.006 to supplement material covered. A gas turbine operates on an open version of the Brayton cycle and consists of a compressor, a combustion chamber and a turbine. An automobile turbocharger was chosen because it contains a compressor and turbine on a common shaft. Designs for the combustion chamber, oil system, fuel system, and ignition system were created based on research of similar projects. Many of the necessary parts were also specified.
by Keane T. Nishimoto.
S.B.
Savoulides, Nicholas 1978. "Development of a MEMS turbocharger and gas turbine engine." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/17815.
Full textIncludes bibliographical references.
As portable electronic devices proliferate (laptops, GPS, radios etc.), the demand for compact energy sources to power them increases. Primary (non-rechargeable) batteries now provide energy densities upwards of 180 W-hr/kg, secondary (rechargeable) batteries offer about 1/2 that level. Hydrocarbon fuels have a chemical energy density of 13,000-14,000 W-hr/kg. A power source using hydrocarbon fuels with an electric power conversion efficiency of order 10% would be revolutionary. This promise has driven the development of the MIT micro gas turbine generator concept. The first engine design measures 23 x 23 x 0.3 mm and is fabricated from single crystal silicon using MEMS micro-fabrication techniques so as to offer the promise of low cost in large production. This thesis describes the development and testing of a MEMS turbocharger. This is a version of a simple cycle, single spool gas turbine engine with compressor and turbine flow paths separated for diagnostic purposes, intended for turbomachinery and rotordynamic development. The turbocharger design described herein was evolved from an earlier, unsuccessful design (Protz 2000) to satisfy rotordynamic and fabrication constraints. The turbochargers consist of a back-to-back centrifugal compressor and radial inflow turbine supported on gas bearings with a design rotating speed of 1.2 Mrpm. This design speed is many times the natural frequency of the radial bearing system. Primarily due to the exacting requirements of the micron scale bearings, these devices have proven very difficult to manufacture to design, with only six near specification units produced over the course of three years. Six proved to be a small number for this development program since these silicon devices are brittle
(cont.) and do not survive bearing crashes at speeds much above a few tens of thousands of rpm. The primary focus of this thesis has been the theoretical and empirical determination of strategies for the starting and acceleration of the turbocharger and engine and evolution of the design to that end. Experiments identified phenomena governing rotordynamics, which were compared to model predictions. During these tests, the turbocharger reached 40% design speed (480,000 rpm). Rotordynamics were the limiting factor. The turbomachinery performance was characterized during these experiments. At 40% design speed, the compressor developed a pressure ratio of 1.21 at a flow rate of 0.13 g/s, values in agreement with CFD predictions. At this operating point the turbine pressure ratio was 1.7 with a flow rate of 0.26 g/s resulting in an overall spool efficiency of 19%. To assess ignition strategies for the gas turbine, a lumped parameter model was developed to examine the transient behavior of the engine as dictated by the turbomachinery fluid mechanics, heat transfer, structural deformations from centrifugal and thermal loading and rotordynamics. The model shows that transients are dominated by three time constants - rotor inertial (10⁻¹ sec), rotor thermal (lsec), and static structure thermal (10sec). The model suggests that the engine requires modified bearing dimensions relative to the turbocharger and that it might be necessary to pre-heat the structure prior to ignition ...
by Nicholas Savoulides.
Ph.D.
Wang, Xu. "A study into vibrations of turbocharger blading with a lacing wire." Thesis, Loughborough University, 1994. https://dspace.lboro.ac.uk/2134/10754.
Full textLymberopoulos, N. "Flow in single and twin-entry radial turbocharger turbine volutes." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/47159.
Full textCarrasco, Mora Enrique. "Variable Stator Nozzle Angle Control in a Turbocharger Inlet." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-174345.
Full textAbdullah, Abu Hasan. "The application of high inlet swirl angles for broad operating range turbocharger compressor." Thesis, University of Bath, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.320555.
Full textLee, Samuel P. "Mixed flow turbine housing development for a fixed geometry turbocharger application." Thesis, University of Huddersfield, 2018. http://eprints.hud.ac.uk/id/eprint/34776/.
Full textRajoo, Srithar. "Steady and pulsating performance of a variable geometry mixed flow turbocharger turbine." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/39159.
Full textGoussakov, Alex, and Alin Dumitru Durac. "Tribological characterisation of turbocharger turbine sealing rings in heavy duty diesel engines." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-67300.
Full textTsai, Lauren (Lauren Elizabeth). "Design and performance of a gas-turbine engine from an automobile turbocharger." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32971.
Full textIncludes bibliographical references (leaves 31-32).
The Massachusetts Institute of Technology Department of Mechanical Engineering teaches thermodynamics and fluid mechanics through a pair of classes, Thermal Fluids Engineering I & II. The purpose of this project was to design and fabricate a gas-turbine engine for demonstration use in these two classes. The engine was built from an automobile turbocharger with a combustion chamber connected between its compressor and turbine. Pressure and temperature sensors at different points of the engine cycle allow students to monitor the performance of the individual engine components and the complete engine cycle.
by Lauren Tsai.
S.B.
Padilla, Jorge 1983. "Design, fabrication, and performance of a gas-turbine engine from an automobile turbocharger." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32958.
Full textIncludes bibliographical references (leaf 50).
Thermal-Fluids Engineering is taught in two semesters in the Department of Mechanical Engineering at the Massachusetts Institute of Technology. To emphasize the course material, running experiments of thermodynamic plants are integrated into the course as demonstrations. The aim of this thesis is to supplement the course demonstrations of thermodynamic plants through the design and fabrication of a gas-turbine engine. The engine operates on an open version of the Brayton cycle. Students will be able to evaluate the energy conversion efficiency and net work ratio from air temperature measurements in three stages of the cycle. The gas-turbine engine is made from an automobile turbocharger for its common shaft turbine and compressor. A combustion chamber was placed between the outlet of the compressor and the inlet of the turbine. The temperature measurement system was designed from the placement of thermocouples on the outside wall of a pipe leading from the compressor to the combustor, on the outside wall of a pipe leading from the combustor to the turbine, and on the outside wall of the turbine exhaust pipe. As the temperature measured by the thermocouple will be that of the outside walls of the engine, the model will depict the cross-sectional temperature profile so the students will know the actual bulk temperature of the working fluid, air.
by Jorge Padilla, Jr.
S.B.
Copeland, Colin D. "Evaluation of steady and pulsating flow performance of a double-entry turbocharger turbine." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5635.
Full textŽatko, Miroslav. "Optimization of the Stator Vane Aerodynamic Loading for a Turbocharger with a Variable Nozzle Turbine." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-234359.
Full textPerez, Zuñiga Yoshio Samaizu. "Design of an axial turbine and thermodynamic analysis and testing of a K03 turbocharger." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68540.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 65-66).
A novel humidification dehumidification desalination system was developed at the Rohseneow Kendall Heat Transfer Laboratory. The HDH system runs by having different pressures in the humidifier and dehumidifier. One of the components that will keep the different pressures is an expander. The expander specification is to work with a pressure ratio of 1.2 while having a high efficiency. Two approaches were developed to achieve this result, one was through the design of a turbine and the second was through the selection and testing of a car turbocharger. The design of a turbine is given in detail and follows the process given in "Design of High- Efficiency Turbomachinery and Gas Turbines" by David Wilson. The final design of the turbine blades was sand cast. Due to the sand casting process, cavitation on the blade material was shown and testing of the blades was not pursued for fear of fast fracturing. The second option of selecting a turbocharger is shown and the process which led to its selection is explained. Through such process a K03 turbocharger was selected to be suitable to run at the low pressure ratios with a moderate efficiency. Testing of the K03 was conducted. The static-to-static isentropic efficiency calculated was 53% ± 11% for a pressure ratio of 1.2 while the total-to-total isentropic efficiency 60% ± 14% at a pressure ratio of 1.2. The high error associated with the efficiencies are due to the turbine experiencing small temperature drops in the order of 10°C or less. The K03 turbocharger is meant to run at higher pressure ratios, in the order of 2 with a manufacturer specified efficiency of 70%. Running the K03 at a pressure ratio of 1.2 decreases the efficiency since its not specified to run at those low pressure ratios. If a turbine or a turbocharger is designed for the exact specifications of the desalination system, it can work with low pressure ratios and be highly efficient.
by Yoshio Samaizu Perez Zuniga.
S.B.
Cao, Kun. "The development of a pulse-optimized flow control method for turbocharger turbine performance improvement." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/44972.
Full textZdunek, Agnieszka Izabela. "Prediction of natural frequencies of turbine blades for turbocharger application : an investigation of the finite element method, mathematical modelling and frequency survey methods applied to turbocharger blade vibration in order to predict natural frequencies of turbocharger blades." Thesis, University of Bradford, 2014. http://hdl.handle.net/10454/7328.
Full textFogarty, Kevin John. "Turbocharger Turbines: An Experimental Study on the Effects of Wastegate Size and Flow Passage Design." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1357305273.
Full textNwagoum, Idriss Chatrian. "aerodynamic performance improvement of a twin scroll turbocharger turbine using the design of experiments method." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.
Find full textBoyd, Michael. "Design and analysis of a viscous film dynamometer for wide range turbocharger turbine performance mapping." Thesis, Queen's University Belfast, 2018. https://pure.qub.ac.uk/portal/en/theses/design-and-analysis-of-a-viscous-film-dynamometer-for-wide-range-turbocharger-turbine-performance-mapping(a5c21425-5cca-4fb3-b4e0-d3976e28ab7c).html.
Full textPadzillah, Muhamad Hasbullah. "Experimental and numerical investigation of an automotive mixed flow turbocharger turbine under pulsating flow conditions." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/26136.
Full textStreďanská, Alexandra. "Návrh turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417802.
Full textSzymko, Shinri. "The development of an eddy current dynamometer for evaluation of steady and pulsating turbocharger turbine performance." Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/11925.
Full textNoor, Alias Bin Mohd. "An experimental and theoretical investigation of the design of single entry radial inflow turbocharger turbine volutes." Thesis, University of Bath, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.235566.
Full textSoler, Blanco Pablo. "Simulation and modelling of the performance of radial turbochargers under unsteady flow." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/141609.
Full text[CAT] Està fora de tot dubte que la indústria de l'automòbil està vivint una profunda transformació que, durant els últims anys, ha progressat a un ritme accelerat. A causa de la creixentment estricta regulació sobre emissions contaminants i la necessitat de satisfer la sempre creixent demanda de mobilitat sostenible, és necessari que els motors de combustió moderns reduïsquen el seu consum i emissions mantenint el rendiment del motor. Per a enfrontar-se a aquest desafiament, els enginyers de recerca i desenvolupament han redoblat els seus esforços a l'hora de dissenyar i millorar els models unidimensionals, fins al punt en el qual el desenvolupament de models 1D així com la simulació juguen un paper fonamental en les primeres etapes de disseny de nous motors i tecnologies. Al mateix temps, la tecnologia de turbosobrealimentación s'ha consolidat com una de les més efectives a l'hora de construir motors d'alta eficiència, la qual cosa ha fet evident la importància de comprendre i modelar correctament els efectes associats als turbogrupos. Particularment, els fenòmens que ocorren en la turbina en condicions de flux fortament polsant han demostrat ser complicades de modelar i no obstant això decisives, ja que els codis de simulació són especialment útils quan són dissenyats per a treballar en condicions realistes. Aquest treball se centra en millorar els models unidimensionals actuals així com a desenvolupar noves solucions amb l'objectiu de contribuir a una millor predicció del comportament de la turbina sotmesa a condicions de flux polsant. Tant els esforços realitzats en els treballs experimentals com en els de modelatge s'han produït per a poder proporcionar mètodes que siguen fàcils d'adaptar a les diferents configuracions de turbogrupo usades en l'indústria, per això, poden ser aplicats per exemple en turbines d'entrada simple i també en les cada vegada més usades turbines d'entrada doble. Pel que fa al treball de modelatge en la part de turbina d'entrada simple, el focus s'ha posat a presentar una versió millorada d'un codi quasi-2D. La validació del model es basa en les dades experimentals que estan disponibles de treballs anteriors de la literatura, proporcionant una comparació completa entre els models quasi-2D i el clàssic model 1D. La pressió a l'entrada i eixida de la turbina s'ha descompost en ones que viatgen cap avant i cap enrere per mitjà de la descomposició de pressions, emprant la component reflectida i transmesa per a verificar la bondat del model. El treball experimental d'aquesta tesi se centra en desenvolupar un nou mètode per a assajar qualsevol turbina de doble entrada sotmesa a condicions de flux fortament pulsante. La configuració del banc de gas s'ha dissenyat per a ser prou flexible com per a realitzar polsos en les dues branques d'entrada per separat, així com per a usar condicions de flux calent o condicions ambient amb mínims canvis en la instal·lació. La campanya experimental s'usa per a validar un model integrat unidimensional de turbina tipus twin-scroll amb especial focus en les components reflectida i transmesa per a analitzar l'acompliment del model la seua capacitat de predicció de l'acústica no lineal. Finalment, després de desenvolupar el treball experimental i de modelatge, es presenta un procediment per a caracteritzar el so i soroll de la turbina per mitjà de matrius de transferència acústica que és comparat amb el codi unidimensional complet. En aquest sentit, el mètode proporciona una eina útil i fàcil d'implementar per a simulacions en temps real que aplica d'una manera pràctica el treball de modelatge exposat al llarg d'aquesta tesi.
[EN] It is beyond all doubt that the automotive industry is living a deep transformation that, during the last years, has progressed at an ever accelerating rate. Due to the increasingly stringent pollutant emission regulations and the necessity to fulfil an ever growing demand for sustainable mobility, the modern internal combustion engines are required to strongly reduce the fuel consumption and emissions, while keeping the engine performance. In order to confront this challenge, engine research and development engineers have redoubled their efforts in designing and improving one-dimensional codes, to the point that the development of 1D models and simulation campaigns play a major role in the early steps of designing new engines or technologies. At the same time as the turbocharging technology has arisen as one of the most effective and extended solutions for building high efficient engines, the importance of understanding and modelling correctly the turbocharger effects has become evident. In particular, the phenomena that occurs in the turbine under highly pulsating conditions have proven to be challenging to model and yet decisive, as simulation codes are especially useful when they are designed to work under realistic conditions. This work focusses on the improvement of current one-dimensional models as well as in the development of new solutions with the aim of contributing to a better prediction of the turbine performance under pulsating conditions. Both experimental and modelling efforts have been made in order to provide methods that are easily adaptable to different turbocharger configurations used in the industry, so they can be applied for example in single turbines and also in the increasingly used two-scroll turbine technology. Regarding the modelling work of the single entry turbine part, the work has been focused in presenting an improved version of a quasi-2D code. The validation of the model is based on the experimental data available from previous works of the literature, providing a complete comparison between the quasi-2D and a classic 1D model. By means of a pressure decomposition, the pressure at the turbine inlet and outlet has been split into forward and backward travelling waves, employing the reflected and transmitted components to verify the goodness of the model. The experimental work of the thesis is centred in developing a new method in order to test any two-scroll turbine under highly pulsating flow conditions. The gas stand setup has been designed to be flexible enough to perform pulses in both inlet branches separately as well as to use hot or ambient conditions with minimal changes in the installation. The experimental campaign is used to fully validate an integrated 1D twin-scroll turbine model with special focus in the reflected and transmitted components for analysing the performance of the model and its non-linear acoustics prediction capabilities. Finally, after the experiment and modelling work is developed, a procedure to characterise the turbine sound and noise by means of acoustic transfer matrices is presented and tested against the fully one-dimensional code. In this sense, this method provides a useful and easily-implementable tool for fast and real time simulations that applies in a practical way the modelling work exposed along this thesis.
Soler Blanco, P. (2020). Simulation and modelling of the performance of radial turbochargers under unsteady flow [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/141609
TESIS
Palfreyman, Dean Daniel. "Aerodynamics of a a mixed flow turbocharger turbine under steady and pulse flow conditions : a numerical study." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417077.
Full textBin, Wan Salim Wan. "Study of externally waste-gated turbine performance under steady and pulsating inlet conditions for improved turbocharger matching." Thesis, Imperial College London, 2014. http://hdl.handle.net/10044/1/25287.
Full textSchrimpel, Michal. "Parovzduchová turbína s využitím přeplňovacích turbodmychadel PBS Turbo." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-227963.
Full textAspinwall, Jacob Raleigh. "Design of an Improved Moisture Separator in a Turbocharger System for Fuel Cells." Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4976.
Full textO'Neill, J. W. "An experimental and numerical investigation of the flow field in the turbine stator of a variable geometry turbocharger." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403436.
Full textGurunathan, Balamurugan A. "Experimental evaluation of steady and pulsating flow performance of an asymmetric double entry turbine for an automotive turbocharger." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/48470.
Full textWadner, Martin. "Co-Simulation of Engine Model and Control System with focus on Turbocharger Model." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-81059.
Full textDrdla, Adam. "CFD simulace proudění rozváděcím mechanismem turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229246.
Full textLandsberg, David Tertius. "Investigation into the thermodynamic suitability of a commercial turbocharger for use in a micro gas-turbine / David T. Landsberg." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1413.
Full textOboňa, Matúš. "Šroubové spojení turbínového kola s hřídelem turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417513.
Full textAcheson, S. K. "An experimental investigation of the flow field in the turbine stator of a variable geometry turbocharger using laser Doppler velocimetry." Thesis, Queen's University Belfast, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403440.
Full textNotarianni, Gianmarco. "Analysis and modelling of the turbocharger behavior of an internal combustion engine for aeronautical application." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.
Find full textTomanec, Filip. "Kinematický model mechanismu natáčení lopatek turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229182.
Full textZygmont, Martin. "Reverzační turbokompresor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229815.
Full textŠebesta, Filip. "Zkušební stanoviště pro zkoušení turbodmychadel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231832.
Full textTiikoja, Heiki. "Acoustic Characterization of Turbochargers and Pipe Terminations." Licentiate thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-92648.
Full textЮкало, Дмитро Миколайович, and Dmytro Yukalo. "Розробка біогазової енергетичної газотурбінної установки." Bachelor's thesis, Тернопільський національний технічний університет імені Івана Пулюя, кафедра електричної інженерії,Тернопіль, Україна, 2021. http://elartu.tntu.edu.ua/handle/lib/35319.
Full textЕкономія традиційних видів палива є актуальною у наш час. Завдяки використанню біогазових установок отриманий біогаз ми можемо витратити на виробництво теплової і електричної енергії. Виходячи зі зробленого аналізу існуючих конструкторських рішень газотурбінних установок і мікро газотурбінних установок найбільш придатною є радіальна доцентрова турбіна. У роботі проведено огляд і аналіз існуючих систем енергопостачання на основі газотурбінних технологій. Проаналізовано та вибрано методики розрахунку для створення мікро- газотурбінної електростанції, що використовує турбокомпресор двигуна внутрішнього згорання з можливістю роботи на різних видах газоподібного палива. Запропоновано систему автоматичного управління, що дозволяє здійснювати регулювання всіх необхідних параметрів в потрібній заданій послідовності з дотриманням заданого режиму горіння.
Saving traditional fuels is relevant today. Due to the use of biogas plants, the obtained biogas can be spent on the production of heat and electricity. Based on the analysis of existing design solutions of gas turbines and micro gas turbines, the most suitable is a radial centrifugal turbine. The paper reviews and analyzes the existing power supply systems based on gas turbine technologies. The calculation methods for the creation of a micro-gas turbine power plant using a turbocharger of an internal combustion engine with the ability to work on different types of gaseous fuel are analyzed and selected. An automatic control system is proposed, which allows to adjust all the necessary parameters in the desired set sequence in compliance with the set combustion mode
ВСТУП 1 АНАЛІТИЧНИЙ РОЗДІЛ 8 1.1 Області застосування й існуючі системи автономного енергопостачання 8 1.2 Переваги та недоліки газотурбінних генераторів 10 1.3 Висновки до розділу 15 2 ПРОЕКТНО-КОНСТРУКТОРСЬКИЙ РОЗДІЛ 16 2.1 Принцип роботи газотурбінних установок 16 2.2 Методика підбору турбокомпресора ДВЗ, для використання в МГТУ в якості головного робочого органу двигуна 20 2.3 Методика розрахунку термодинамічних параметрів газового потоку в жарову трубу МГТУ 30 2.4 Висновки до розділу 42 3 РОЗРАХУНКОВИЙ РОЗДІЛ 43 3.1 Розрахунок параметрів камери згоряння при використанні різних видів палива на газотурбінній установці 43 3.2 Методика розрахунку камери згоряння для багатопаливної МГТУ 46 3.2.1 Розрахунок паливної форсунки і тиску подачі пропан-бутану або біогазу в камеру згоряння 46 3.2.2 Розрахунок геометричних параметрів жарової труби камери згоряння 58 3.2.3 Розрахунок геометричних параметрів камери згоряння 64 3.3 Розрахунок параметрів силової турбіни 69 3.4 Розробка системи управління 70 3.5 Розрахунок ККД газотурбінної установки 74 3.6 Висновки до розділу 75 4 БЕЗПЕКА ЖИТТЄДІЯЛЬНОСТІ ТА ОСНОВИ ОХОРОНИ ПРАЦІ 76 4.1 Основні вимоги безпеки до улаштування та експлуатації технологічного обладнання 76 4.2 Особливості електротравматизму, електричний струм як чинник небезпек 80 ЗАГАЛЬНІ ВИСНОВКИ 81 ПЕРЕЛІК ПОСИЛАНЬ 82
Fjällman, Johan. "Large Eddy Simulations of Complex Flows in IC-Engine's Exhaust Manifold and Turbine." Doctoral thesis, KTH, Strömningsfysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-151399.
Full textDenna avhandling behandlar flödet i rörkrökar och radiella turbiner som vanligtvis återfinns i en förbränningsmotor. Utvecklingsfasen av förbränningsmotorer bygger mer och mer på att simuleringar är ett viktigt komplement till experiment. Detta beror delvis på minskade utvecklingskostnader men även på kortare utevklningstider. Detta är en av anledningarna till att man behöver mer exakta och prediktiva simuleringsmetoder. Genom att använda mer komplexa beräkningsmetoder så kan både nogrannheten och prediktiviteten öka. Nackdelen med att använda mer sofistikerade metoder är att beräkningstiden ökar, vilket medför att sådana verktyg är mindre attraktiva för standardiserade design ändamål. Härav, ett av målen med projektet har varit att bidra med att bedöma och förbättra de enklare metodernas prediktionsförmåga som används utav industrin. Genom att jämföra resultat från experiment, Reynolds Averaged Navier-Stokes (RANS) och Large Eddy Simulations (LES) så kan nogrannheten hos de olika simuleringsmetoderna fastställas. Fördelarna med att använda LES istället för RANS när det gäller de undersökta flödena kommer ifrån det instationära flödet i grenröret. När denna instationäritet överlappar den naturligt förekommande turbulensen så saknar modellen en rationell grund. Denna avhandling behandlar effekten av de cykliska flöderna på de valda numeriska modellerna. LES beräkningarna har bevisats kunna förutsäga medelfältet och fluktuationerna väldigt väl när man jämför med experimentell data. Effekterna som den pulserande avgasströmning har på turboladdarens turbin prestanda har också kunnat fastställas. Både konstant och pulserande inlopps randvillkor har används för turbinfallet, där det senare är ett mer realistiskt representation av den riktiga strömningsbilden innuti avgasgrenröret och turbinen. Resultaten har analyserats på flera olika sätt: snabba Fourier transformer (FFT) i enskilda punkter, medelvärden och statistik på problinjer, area och volumsbaserade metoder så som Proper Orthogonal Decomposition (POD) samt Dynamic Mode Decomposition (DMD).
QC 20140919
Votava, Ondřej. "Návrh oběžného kola radiální turbíny se sníženým momentem setrvačnosti." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-432805.
Full textSalameh, Georges. "Caractérisation expérimentale d’une turbine de suralimentation automobile et modélisation de ses courbes caractéristiques de fonctionnement." Thesis, Ecole centrale de Nantes, 2016. http://www.theses.fr/2016ECDN0006/document.
Full textEngine downsizing is potentially one of the most effective strategies being explored to improve fuel economy and reduce emissions. In the field of turbocharging,simulation is limited by the operating characteristics of turbines supplied by the manufacturers. An accurate and precise extrapolation of the turbine performance maps is the main aim of this study. An experimental study was done on a radial turbine of a turbocharger with different techniques to measure the wider turbine performance map possible. Measurements were done on a classic turbocharger test bench with different turbine inlet temperatures. Then air was blown to the compressor inlet and exit: it is the compressor “gavage”. The compressor is then replaced with another one with are versed rotor: this compressor can help the turbine turn and even drive it itself. The lowest mass flow rates are measured even the negative ones. An electromechanical turbine test bench was developed but did not work correctly because of technical problems but future developments are promising. The various experimental techniques used allowed also the measurement of the turbine isentropic efficiency and the turbocharger mechanical efficiency. Finally, many extrapolation models of the turbine performance maps were tested and compared to the experimental results
Diango, Kouadio Alphonse. "Influence des pertes thermiques sur les performances des turbomachines." Phd thesis, Conservatoire national des arts et metiers - CNAM, 2010. http://tel.archives-ouvertes.fr/tel-00598488.
Full textNovotný, Pavel. "Zážehový motor s Millerovým cyklem optimalizace provozu turbodmychadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-449786.
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