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Dissertations / Theses on the topic 'HIGH-POWER APPLICATIONS'

Author: Grafiati

Published: 11 September 2023

Last updated: 25 July 2025

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1

Davari, Pooya. "High frequency high power converters for industrial applications." Thesis, Queensland University of Technology, 2013. https://eprints.qut.edu.au/62896/1/Pooya_Davari_Thesis.pdf.

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The main contribution of this project was to investigate power electronics technology in designing and developing high frequency high power converters for industrial applications. Therefore, the research was conducted at two levels; first at system level which mainly encapsulated the circuit topology and control scheme and second at application level which involves with real-world applications. Pursuing these objectives, varied topologies have been developed and proposed within this research. The main aim was to resolving solid-state switches limited power rating and operating speed while incr

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2

Choi, Joo-Young. "RF MEMS Switches for high power applications." Thesis, Imperial College London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501423.

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This thesis introduces a new concept in 3D RF MEMS switches intended for power applications. The novel switch architecture employs electrothermal hydraulic microactuators to provide mechanical actuation and 3D out-of-plane silicon cantilevers that have both spring action and latching mechanisms. This facilitates an OFF-state gap separation distance of -200 μLim between ohmic contacts, without the need for any hold power. Having simple assembly, many of the inherent problems associated with the more traditional suspension bridge and cantilever type beam architectures can be overcome. SPST switc

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3

Shrestha, Nabin Kumar. "High power IGBTs in soft switching applications." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614353.

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4

BRAGLIA, ANDREA. "High Power Fiber Lasers for Industrial Applications." Doctoral thesis, Politecnico di Torino, 2013. http://hdl.handle.net/11583/2506061.

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Fiber lasers can be considered a revolutionary technology in the laser field thanks to their unique properties, such as high efficiency, simplicity, compactness and robustness. These features have allowed in the last ten years their outstanding growth both in scientific and industrial applications, eroding the market share of traditional laser sources like solid-state and gas lasers. Fiber lasers power scaling to the kilowatt range is now well established and, thanks to the fiber confinement, excellent output beam quality can be obtained, with a remarkable benefit for applications. Today, high

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5

Kumar, Kundan. "High Efficiency Power Converters for Vehicular Applications." Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424474.

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The use of power electronics in the electrical propulsion systems leads to the optimal and efficient utilization of the traction motors and the energy sources (batteries and/or fuel cells) through the recourse to suitable power converters and their proper control. Power electronics is also used for implementing the multiple conversions of the energy delivered by the sources to feed the various loads, most of them requiring different waveforms of voltage (ac or dc) and/or different levels of voltage. This work focuses on the solutions aimed at improving the efficiency of power converters for ve

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6

Chen, Zheng. "Electrical Integration of SiC Power Devices for High-Power-Density Applications." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/23923.

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The trend of electrification in transportation applications has led to the fast development of high-power-density power electronics converters. High-switching-frequency and high-temperature operations are the two key factors towards this target. Both requirements, however, are challenging the fundamental limit of silicon (Si) based devices. The emerging wide-bandgap, silicon carbide (SiC) power devices have become the promising solution to meet these requirements. With these advanced devices, the technology barrier has now moved to the compatible integration technology that can make the best o

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7

Harrison, Paul Martin. "Industrial thin film processing applications of high peak power, high average power Nd:YAG laser systems." Thesis, Heriot-Watt University, 2012. http://hdl.handle.net/10399/2613.

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Three high speed thin film patterning applications have been investigated using a high average power, high peak power laser system. Throughout this work the spatial intensity profile of the laser output was tailored to produce more efficient results. The first application involved the development of rapid laser patterning of an indium tin oxide layer on a glass substrate in order to generate transparent electrodes for a flat panel display. This work showed that the stitch line that occurs in-between adjacent laser pulses was formed by redeposition of material via the plume generated by the sec

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8

Atkinson, Glynn James. "High power fault tolerant motors for aerospace applications." Thesis, University of Newcastle upon Tyne, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438035.

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9

Dixon, Juan W. (John Walterio). "Boost type PWM rectifiers for high power applications." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75864.

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The present industrial practice of ac to dc rectification uses diode or thyristor bridges which are harmonic polluters and poor power factor sources. The research of this thesis is directed towards exploiting fast, gate-turn-off semiconductor switching devices and PWM techniques in order to develop a new generation of rectifiers with nearly sinusoidal current waveforms operating at unity or even leading power factor. The scope of the investigation is restricted to the Boost rectifier (as opposed to Buck) which has bilateral power transfer capability through bidirectional current flow in the dc

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10

Fisher, Lorna. "Novel cavity design for high power microwave applications." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=18020.

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11

Vazquez, Zuniga Luis Alonso. "Ultrafast high power fiber lasers and their applications." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/340703/.

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In this thesis I report experimental studies toward developing versatile, compact, and reliable ultrafast sources in the 1.5 micron wavelength region, and their power scalability. The first part of the thesis reports on the development of a stable all-fiberized wavelength-tunable frequency-shifted feedback (FSF) picosecond laser. Stability of the passive mode-locking mechanism is achieved by combining the effects of nonlinear polarization evolution and a frequency shifting mechanism carried out by an acousto-optic modulator. The novel configuration generates pulses in the range of ~ 34 to 66 p

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12

Alexander, Eric Douglas. "Pulsed-Power Busbar Design for High-Powered Applications." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71329.

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The use of high-powered electrical energy systems requires an efficient and capable means to move electrical energy from one location to another while reducing energy losses. This paper describes the design and construction process of a high-powered busbar system that is to be implemented in pulsed-power applications. In order to obtain a robust system capable of handling in excess of 25kJ, both mechanical and electrical analyses were performed to verify a capable design. The following methodology describes how the Lorentz force was balanced with mechanical forces during the design process and

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13

Nilsson, Klas. "Industrial applications of high power CO2-laser welding." Licentiate thesis, Luleå, 1994. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-18201.

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14

Senior, Benjamin Seth. "Optimized network topologies for high power filter applications." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400859.

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15

Jankovic, Marija. "High power modular converters for grid interface applications." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/40017/.

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Scientists at European Organization for Nuclear Research (CERN) are currently conducting feasibility studies for the Compact linear collider (CLIC); their proposed next experimental setup for gathering information on the fundamental particles of matter. This experiment will involve the simultaneous pulsing of 1300 klystron modulators to produce a 140us, 39GW pulse with a 50 Hz repetition rate. This proposal presents many demands for the connected power system as an effort is made to "hide" this pulse from the local distribution network - instead drawing only the constant average power of appro

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16

Wang, Ruxi. "High Power Density and High Temperature Converter Design for Transportation Applications." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28264.

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The continual development of high-power-density power electronic converters is driven particularly by modern transportation applications like electrical vehicles and more electric aircraft where the space and carrier capability is limited. However, there are several challenges related to transportation applications such as fault tolerance for safety concern, high temperature operation in extreme environments and more strict electromagnetic compatibility requirement. These challenges will increase difficulties for more electrical system adoption in the transportation applications. In this dis

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17

Nami, Alireza. "A new multilevel converter configuration for high power and high quality applications." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33216/1/Alireza_Nami_Thesis.pdf.

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The Queensland University of Technology (QUT) allows the presentation of theses for the Degree of Doctor of Philosophy in the format of published or submitted papers, where such papers have been published, accepted or submitted during the period of candidature. This thesis is composed of ten published /submitted papers and book chapters of which nine have been published and one is under review. This project is financially supported by an Australian Research Council (ARC) Discovery Grant with the aim of investigating multilevel topologies for high quality and high power applications, with speci

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18

Pang, Lisa Yee San. "Thin film diamond : electronic devices for high temperature, high power and high radiation applications." Thesis, University College London (University of London), 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313317.

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19

Shafiei, Navid. "High-order resonant power converters for battery charger applications." Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/61375.

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The demand for electric vehicles has expanded rapidly for both industrial and transportation applications. In parallel, new battery technologies have been introduced which are capable of deep-discharge and powering electric vehicles for long periods of time. Due to the increasing complexity of charging algorithms, battery chargers are exposed to demanding operating requirements. In battery charger applications, power converters should not only regulate the battery voltage and power over a wide range, all the way from complete discharge up to the charged floating voltage but also respond to the

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20

Naylor, Matthew J. "Development of high temperature superconducting materials for power applications." Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301420.

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21

Lee, Shinwook. "HIGH POWER MODE-LOCKED SEMICONDUCTOR LASERS AND THEIR APPLICATIONS." Doctoral diss., University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3195.

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In this dissertation, a novel semiconductor mode-locked oscillator which is an extension of eXtreme Chirped Pulse Amplification (XCPA) is investigated. An eXtreme Chirped Pulse Oscillator (XCPO) implemented with a Theta cavity also based on a semiconductor gain is presented for generating more than 30ns frequency-swept pulses with more than 100pJ of pulse energy and 3.6ps compressed pulses directly from the oscillator. The XCPO shows the two distinct characteristics which are the scalability of the output energy and the mode-locked spectrum with respect to repetition rate. The laser cavity des

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22

Cook, D. J. "A direct resonant converter for high power RF applications." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438305.

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23

Zhang, Yi. "Modelling of photoconductive switches in high voltage power applications." Thesis, University of Brighton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239720.

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24

Trubitsyn, Aleksey. "High efficiency DC/AC power converter for photovoltaic applications." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60190.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>Includes bibliographical references (p. 217-218).<br>This thesis presents the development of a microinverter for single-phase photovoltaic applications that is suitable for conversion from low-voltage (25-40V) DC to high voltage AC (e.g. 240VAC,RMS). The circuit topology is based on a full-bridge series resonant inverter, a high-frequency transformer, and a novel half-wave cyclo-converter. The operational characteristics are analyzed, and a multidimensional control technique is

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25

Banerjee, Arijit Ph D. Massachusetts Institute of Technology. "Switched-doubly-fed-machine drive for high power applications." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/105650.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 202-207).<br>Converting electricity to mechanical motion is a foundation of modern civilization. A controllable "knob" is often necessary in these electromechanical energy conversion systems to achieve adjustable motion or a process control. An energy-efficient approach to realize this "knob" is through variable-speed drives (VSD), which are power-electronic based converters with associated

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26

Hassan, Bakri. "Current fed multilevel converters for high current power applications." Thesis, University of Newcastle upon Tyne, 2016. http://hdl.handle.net/10443/3267.

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The majority of the worldwide installed power inverters today are voltage source inverters followed by current source inverters where the concluding decision lies with the performance of the applications besides the usual economic reasons. Recent active development in the current source inverter areas has seen the emerging of various generalized multilevel current source inverter topologies analogous to the existing multilevel voltage source inverter families. To date, the multilevel current source inverter families have been classified principally by the physical appearance of their basic str

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27

Do, Manh Cuong. "Piezoelectric Transformer Integration Possibility in High Power Density Applications." Doctoral thesis, Technische Universität Dresden, 2007. https://tud.qucosa.de/id/qucosa%3A23676.

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The contents of this work investigate the capability of integrating the PT in applications by invoking the ratio of the throughput power to volume represented by the term: power density. The fundamentals of the PT are introduced in chapter two. In chapter three, the fundamental limitations of the PT's capability of transferring power to the load are studied. There are three major limitations: temperature rise due to losses during operation, electromechanical limits of material, and interactions with output rectifier. The analysis and estimation are then verified by experiments and calculations

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28

Do, Manh Cuong. "Piezoelectric transformer integration possibility in high power density applications." Doctoral thesis, Dresden : TUDpress Verl. der Wiss, 2008. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1214984646187-55994.

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29

Miran, Seyed Mehdi. "Switches for pulsed-power conditioning in high energy applications." Thesis, Loughborough University, 1997. https://dspace.lboro.ac.uk/2134/10616.

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This dissertation presents theoretical and experimental results from a research program that was aimed at finding practical ways of transferring energy to various loads, mainly from an inductive energy store fluxed by a primary store such as a capacitor bank. The main obj ecti ves of the work were to investigate and develop high power opening and closing switches, together with the transfer circuits needed to generate the fast (less than lOOns duration) high energy, pulses required in many applications. The study was to include a feasibility study of the use of the Plasma Erosion Opening Switc

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30

Yang, Rachel S. (Rachel Shanting). "Low-loss inductor design for high-frequency power applications." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/123006.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 72-74).<br>Miniaturization of power electronics can improve the performance of many applications, such as renewable energy systems, data centers, and aerospace systems. Operation in the high frequency (HF) regime (3{ 30 MHz) h

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31

Zabihi, Sasan. "Flexible high voltage pulsed power supply for plasma applications." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48137/1/Sasan_Zabihi_Sheykhrajeh_Thesis.pdf.

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Demands for delivering high instantaneous power in a compressed form (pulse shape) have widely increased during recent decades. The flexible shapes with variable pulse specifications offered by pulsed power have made it a practical and effective supply method for an extensive range of applications. In particular, the release of basic subatomic particles (i.e. electron, proton and neutron) in an atom (ionization process) and the synthesizing of molecules to form ions or other molecules are among those reactions that necessitate large amount of instantaneous power. In addition to the decompositi

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32

Petkov, Roumen Dimitrov. "High power switched mode magnetron power supply systems for industrial microwave heating applications." Thesis, Teesside University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259645.

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33

Sundar, Siddharth. "A low power high power supply rejection ratio bandgap reference for portable applications." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/46517.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.<br>Includes bibliographical references (p. 86-87).<br>A multistage bandgap circuit with very high power supply rejection ratio was designed and simulated. The key features of this bandgap include multiple power modes, low power consumption and a novel resistor trimming strategy. This design was completed in deep submicron CMOS technology, and is especially suited for portable applications. The bandgap designed achieves over 90 dB of power supply rejection and less than 17 microv

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34

Rutan, Ronald J. (Ronald James) 1965. "Marine applications of power supply and conditioning interfaces for high power pulse devices." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/91374.

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Thesis (S.M. in Naval Architecture and Marine Engineering)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.<br>Includes bibliographical references (leaves 96-102).<br>by Ronald J. Rutan.<br>S.M.in Naval Architecture and Marine Engineering<br>S.M.

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35

Zhao, Xiaonan. "High-Efficiency and High-Power Density DC-DC Power Conversion Using Wide Bandgap Devices for Modular Photovoltaic Applications." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/89025.

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With the development of solar energy, power conversion systems responsible for energy delivering from photovoltaic (PV) modules to ac or dc grid attract wide attentions and have significantly increased installations worldwide. Modular power conversion system has the highest efficiency of maximum power point tacking (MPPT), which can transfer more solar power to electricity. However, this system suffers the drawbacks of low power conversion efficiency and high cost due to a large number of power electronics converters. High-power density can provide potentials to reduce cost through the reducti

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36

Deng, Junxiong. "High-efficiency and high-linearity SiGe BiCMOS power amplifiers for WCDMA handset applications /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3175277.

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37

Ciappa, Mauro P. M. "Some reliability aspects of IGBT modules for high-power applications /." Zürich, 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13790.

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38

Rong, Hua. "Development of 4H-SiC power MOSFETs for high voltage applications." Thesis, University of Warwick, 2015. http://wrap.warwick.ac.uk/79426/.

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Silicon carbide is a promising wide bandgap semiconductor for high-power, high-temperature and high frequency devices, owing to its high breakdown electric field strength, high thermal conductivity and ability to grow high quality SiO2 layers by thermal oxidation. Although the SiC power MOSFET (metal-oxide-semiconductor field effect transistor) is preferred as a power switch, it has suffered from low channel mobility with only single digit field effect mobility achieved using standard oxidation process (1200◦C thermal oxidation). As such, this thesis is focussed on the development of 4H-SiC MO

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39

Lehn, Peter W. "Modelling and control of switched circuits for high power applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0010/NQ41031.pdf.

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40

Sözer, Esin Bengisu Kirkici Hulya. "Gaseous discharges and their applications as high power plasma switches." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Electrical_and_Computer_Engineering/Thesis/Sozer_Esin_45.pdf.

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41

Ji, Chao. "High performance resonant pulsed power supply for radio frequency applications." Thesis, University of Nottingham, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.594395.

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In the past decade, there has been an increased demand to develop compact power supplies with high efficiency and high power density in order to revolutionise traditional approaches for high power radio frequency (RF) applications, such as long pulse modulators used for high energy physics acceleration experiments. Resonant technology has been considered to meet these challenges, due to its soft-switching characteristic at high operating frequency. The aim of this research project is to provide further knowledge in series resonant parallel loaded (SRPL) resonant converters for long pulse modul

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42

Jain, Apurva. "Applications of Volume Holographic Elements in High Power Fiber Lasers." Doctoral diss., University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5318.

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The main objective of this thesis is to explore the use of volume holographic elements recorded in photo-thermo-refractive (PTR) glass for power scaling of narrow linewidth diffraction-limited fiber lasers to harness high average power and high brightness beams. Single fiber lasers enable kW level output powers limited by optical damage, thermal effects and non-linear effects. Output powers can be further scaled using large mode area fibers, however, at the cost of beam quality and instabilities due to the presence of higher order modes. The mechanisms limiting the performance of narrow-li

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Jarvis, Scott D. "Towards high efficiency photovoltaics for applications in laser power beaming." Thesis, University of Surrey, 2017. http://epubs.surrey.ac.uk/841789/.

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This work describes the design, development and characterisation of high efficiency photovoltaics (laser power converters) for the conversion of monochromatic light from a laser source into electrical energy. The technology provides a means of transmitting power wirelessly through free-space, for applications in the remote powering of electrical devices and systems. It also provides a means of efficiently transmitting power though fibre-optic cables, allowing electrical power to be delivered free from electromagnetic interference. The design of the laser power converter is considered for effic

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44

Inam, Wardah. "High efficiency resonant dc/dc converter for solar power applications." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79153.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 109).<br>This thesis presents a new topology for a high efficiency dc/dc resonant power converter that utilizes a resistance compression network to provide simultaneous zero voltage switching and near zero current switching across a w

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45

Legg, Thomas. "Development of high power fibre amplifier components, systems and applications." Thesis, University of Strathclyde, 2012. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=25959.

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This thesis contains two projects - the development of a Raman fibre amplifier system for gas sensing and the development of a fibre-in beam-out isolator for use with fibre lasers. The first project developed a fibre Raman amplifier which amplified a 10mW narrow linewidth DFB laser at 1651nm to an output power of over 2W. To achieve this high output power from a narrow linewidth Raman amplifier mechanisms to suppress stimulated Brillouin scattering had to be employed. This amplifier system was packaged into a portable 19” rack enclosure and used to demonstrate remote, single-end, tuneable diod

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46

Taghizadeh, Esfanjani Hassan. "Switched capacitor converters : a new approach for high power applications." Thesis, Aston University, 2016. http://publications.aston.ac.uk/37495/.

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High-power, high-voltage and high voltage-conversion ratio DC-DC converters are an enabling technology for offshore DC grids of the future. These converters are required to interface between offshore wind farms and an offshore DC grid and a key design issue is the size and weight of the converter, which significantly impacts the cost of the associated off-shore platform. In addition to this application, some rural communities, particularly in Canada, Australia and South Africa,which are located far away from the electrical power generators, can take the advantages of this technology by tapping

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47

Dupriez, Pascal. "Advanced high-power pulsed fibre laser systems and their applications." Thesis, University of Southampton, 2007. https://eprints.soton.ac.uk/65498/.

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In this thesis, I report experimental studies towards power scaling of ultrashort fibre-based sources designed for applications including high average power femtosecond pulse generation and nonlinear frequency conversion. While the power produced by rare-earth doped fibre lasers operating in continuous-wave has dramatically increased within a few years to exceed the kilowatt level, pulsed fibre sources have been limited to tens of watts due to the onset of nonlinearities in fibre amplifiers. Therefore the aim is to manage fibre nonlinearities to achieve specific output properties at high avera

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48

Cooper, Laurence James. "Fabrication of novel geometry fibre lasers for high power applications." Thesis, University of Southampton, 2005. https://eprints.soton.ac.uk/38958/.

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This thesis details my work on the development of fabrication techniques for high power doped fibre lasers, using novel fibre geometries, and their demonstration. The main methods for increasing output power were using helical cores, multiple cores and large cores. A method for fabricating helical core fibres was proposed and implemented. Core and cladding pumped devices were successfully constructed, and were then tested in collaboration. A cladding pumped helical core fibre laser improved the beam from a 30μm core from an M2 of 3.3 to < 1.4, with a maximum output power of 64W and slope effic

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49

Chen, Kang Kang. "High power pulsed ytterbium doped fibre lasers and their applications." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/207735/.

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The aim of my project is to develop pulsed Ytterbium (Yb) doped fibre master oscillator power amplifier (MOPA) systems seeded by semiconductor lasers. I was principally focused on two specific projects aligned to sponsored programs of research within the ORC pulsed fibre laser group: the first project, TSB funded project LAMPS, aimed to develop an important class of next generation laser system capable of average output powers of more than 100 W when operating in both the nanosecond and picosecond regimes. The goal was to develop a fully fiberized, polarisation maintaining, single transverse m

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50

Rouse, James Paul. "Computational component analysis techniques for high temperature power plant applications." Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/30659/.

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Abstract:

There is a trend in the power industry for high temperature components (such as steam pipe work) to be operated in an increasingly arduous fashion. This would involve the use of elevated steam temperatures/pressures and a greater frequency of start up/shut down cycles. Such generation strategies are being adopted due to the need for thermally efficient power supply that can match fluctuating market demands. If these generation strategies are to be implemented safely it is critical that careful analysis of the system components is conducted in order to ensure that premature failure does not occ

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