Relevant bibliographies by topics / Thermal Power Engineering / Dissertations / Theses
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Dissertations / Theses on the topic 'Thermal Power Engineering'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Rahmqvist, Elin. "On stochastic unit commitment for thermal power plants." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285519.

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Climate change is a fact, a crisis threatening every country, economy and human. Toprevent this crisis, the emission of greenhouse gases needs to decrease dramatically. 72%of global greenhouse gas emissions in 2016 came from energy production where electricityand heat account for 42% of the 72%. Nevertheless, coal power grew with 28% in2018 to meet the increased demand of electricity. It is therefore of utmost importancethat the resources used in power plants are distributed as efficiently as possible. Unitcommitment is a short-term planning formulation which is part of the planning chain forp
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2

Otiaba, Kenny C. "Thermal and thermo-mechanical performance of voided lead-free solder thermal interface materials for chip-scale packaged power device." Thesis, University of Greenwich, 2013. http://gala.gre.ac.uk/11391/.

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The need to maximise thermal performance of electronic devices coupled with the continuing trends on miniaturization of electronic packages require innovative package designs for power devices and modules such as Electronic Control Unit (ECU). Chip scale packaging (CSP) technology offer promising solution for packaging power electronics. This is as a result of the technology’s relatively improved thermal performance and inherent size advantage. In CSP technology, heat removal from the device could be enhanced through the backside of the chip. Heat dissipating units such as heat spreader
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Swan, Ian R. "3-D thermal modelling of power device packaging." Thesis, University of Warwick, 2010. http://wrap.warwick.ac.uk/35619/.

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Power converters enable e±cient conversion of electric power, thereby reducing power consumption and cost. The key enabling technologies inside power converters, typically used in hybrid electric vehicles, are the semiconductor devices. Device reliability is of high priority because they generate heat from the dissipation of electric power which can lead to failure if the device maximum junction temperature is exceeded. Furthermore, device temperatures can vary largely in switching applications, leading to thermal-mechanical fatigue failure. As electronic designers are pushed to deliver smalle
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4

Federspiel, Clifford Conrad. "User-adaptable and minimum-power thermal comfort control." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/13223.

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5

Lin, Cynthia S. B. Massachusetts Institute of Technology. "Feasibility of using power steering pumps in small-scale solar thermal electric power systems." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/43016.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.<br>Includes bibliographical references (leaves 59-60).<br>The goal of this study was to determine performance curves for a variety of positive displacement pumps in order to select an efficient and low cost option for use as a boiler feed pump in a 1-kWe organic Rankine cycle (ORC) system built by the Solar Turbine Group in Lesotho. The pumps tested included OEM plunger and piston pumps, and rotary vane-type power steering pumps purchased from a junk yard. Motor speed and torque were measured at differ
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Borchard, Philipp Michael. "Thermal and mechanical analysis of high power microwave windows." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/38069.

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7

El, Khaja Ragheb Mohamad Fawaz. "Solar-thermal hybridization of Advanced Zero Emissions Power Plants." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74434.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 43-44).<br>Carbon Dioxide emissions from power production are believed to have significant contributions to the greenhouse effect and global warming. Alternative energy resources, such as solar radiation, may help abate emissions but suffer from high costs of power production and temporal variations. On the other hand, Carbon Capture and Sequestration allows the continued use of fossil fuels without the CO2 emissions bu
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8

DeSomma, Andrew K. "Power/Thermal Interaction within an Adaptive Turbine Engine." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1552918656351752.

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9

Allen, Kenneth Guy. "Performance characteristics of packed bed thermal energy storage for solar thermal power plants." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4329.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: Solar energy is by far the greatest energy resource available to generate power. One of the difficulties of using solar energy is that it is not available 24 hours per day - some form of storage is required if electricity generation at night or during cloudy periods is necessary. If a combined cycle power plant is used to obtain higher efficiencies, and reduce the cost of electricity, storage will allow the secondary cycle to operate independently of the primary cycle. This stu
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10

Zhuang, Fulin 1956. "Optimal generation unit commitment in thermal electric power systems." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=75896.

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This thesis is devoted to the optimal commitment of generation units in an all-thermal, single or multiple area, power system. The problem, known as unit commitment, is a nonlinear mixed program typically with thousands of 0-1 integer variables and diverse constraints. An exact optimal solution to the problem is only possible via (explicit or implicit) enumeration, which requires a prohibitively long computation time for large problem instances.<br>Two optimization approaches, Lagrangian relaxation and simulated annealing, are explored in this thesis for efficient and near-optimal unit commitm
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11

Xia, Wenbo. "Power and thermal modeling for the proto-VIPRAM chip." Thesis, Southern Methodist University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1569659.

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<p> As the power densities increase in integrated circuits (IC) nowadays, especially in 3 dimensional IC (3D-IC), power-induced thermal effects become more and more severe. Therefore, thermal analysis is becoming increasingly important for IC design. The aim of this thesis is to develop power and thermal modeling techniques and the verification method to address the power and thermal challenges in IC designs. The work of this thesis is done by the support of the Vertical Integrated Pattern Recognition Associated Memory (VIPRAM) project from Fermilab. Using the proposed techniques, a power and
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12

Bierman, David M. (David Matthew). "Where solar thermal meets photovoltaic for high-efficiency power conversion." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/93859.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 71-73).<br>To develop disruptive techniques which generate power from the Sun, one must understand the aspects of existing technologies that limit performance. Solar thermal and solar photovoltaic schemes dominate today's solar market but both bring intrinsic and practical constraints. What will tomorrow's solar market look like? Third generation solar power generation techniques to utilize a larger portion of th
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Mayer, Peter (Peter Matthew) 1978. "High-density thermoelectric power generation and nanoscale thermal metrology." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40503.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>Includes bibliographical references (p. 299-305).<br>Thermoelectric power generation has been around for over 50 years but has seen very little large scale implementation due to the inherently low efficiencies and powers available from known materials. Recent material advances appear to have improved the technology's prospects. In this work we show that significantly increased generated power densities are possible even for established material technologies provided that paras
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14

Rizea, Steven Emanoel. "Optimization of Ocean Thermal Energy Conversion Power Plants." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5462.

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A proprietary Ocean Thermal Energy Conversion (OTEC) modeling tool, the Makai OTEC Thermodynamic and Economic Model (MOTEM), is leveraged to evaluate the accuracy of finite-time thermodynamic OTEC optimization methods. MOTEM is a full OTEC system simulator capable of evaluating the effects of variation in heat exchanger operating temperatures and seawater flow rates. The evaluation is based on a comparison of the net power output of an OTEC plant with a fixed configuration. Select optimization methods from the literature are shown to produce between 93% and 99% of the maximum possible amount o
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ORBADIA, BUKENYA RICHARD. "Improvement of the performance of a Demonstration Thermal Power Plant." Thesis, Högskolan i Gävle, Energisystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-24042.

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Power generation with steam as the working fluid has been proven technology in many developed countries around the world. The advantages in using this technology include its ability to use a wide range of fuel and using the cheapest material (water) as a working fluid. This means that if this technology is invested in it can boost the levels of power generation especially in developing countries where only the minority of the population has access to electricity. Currently there is no power plant in Uganda which uses steam technology despite Uganda being endowed with vast sources of fuel rangi
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Oberdorf, Michael Craig. "Power losses and thermal modeling of a voltage source inverter." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Mar%5FOberdorf.pdf.

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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, March 2006.<br>Thesis Advisor(s): Alexander Julian. "March 2006." Includes bibliographical references (p. 103-104). Also available online.
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17

Zak, Gina Marie. "Thermal desalination : structural optimization and integration in clean power and water." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74955.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 131-144).<br>A large number of resources are dedicated to seawater desalination and will only grow as world-wide water scarcity increases. In arid areas with high temperature and salinity seawater, thermal desalination and power plants (dual-purpose/co-generation plants) are often employed for the production of power and water. In other areas, reverse osmosis is commonly employed. However, both technologies are inherent
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18

Al-Hamood, Amjad. "Friction and thermal behaviour in elastohydrodynamic lubrication power transmission contacts." Thesis, Cardiff University, 2015. http://orca.cf.ac.uk/74240/.

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This thesis reports experimental and theoretical analyses to study the heat generation and partition between contacting bodies under rolling/sliding elastohydrodynamic (EHL) point contact. A twin disk test rig was re-commissioned and used for the experimental work. 76 mm diameter crowned, super-finished test disks, fixed on parallel shafts, were used in the experimental EHL tests. In each disk, 6 thermocouples were installed to measure the temperature during sliding/rolling contact under EHL conditions. In addition, ceramic washers were fixed on the plane sides of each disk to minimize heat tr
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19

Kariuki, Kibaara Samuel. "Technical and economic analysis of parabolic trough concentrating solar thermal power plant." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/11929.

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Includes abstract.<br>Includes bibliographical references.<br>This thesis reports on the technical and economic analysis of wet and dry cooling technologies of parabolic trough CSTP plant. This was done through modelling and simulation of a standalone and grid connected parabolic trough using the System Advisor Model (SAM).
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20

Allen, Kenneth Guy. "Rock bed thermal storage for concentrating solar power plants." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86521.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Concentrating solar power plants are a promising means of generating electricity. However, they are dependent on the sun as a source of energy, and require thermal storage to supply power on demand. At present thermal storage – usually molten salt – although functional, is expensive, and a cheaper solution is desired. It is proposed that sensible heat storage in a packed bed of rock, with air as heat transfer medium, is suitable at temperatures of 500 – 600 °C. To determine if this concept is technically feasible and economicall
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21

Zhu, Lu. "Thermal and electrical modeling of power electronics devices with emphasis on heat generation /." The Ohio State University, 1997. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487948807588325.

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22

Yevalkar, Amol. "Integrated Combined Heat and Power Plant with Borehole Thermal Energy Storage." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-266787.

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Countries like Sweden, that experience temperatures below 0 𝑜C, have a high heating demand during winters. The heating demand in Sweden is satisfied through district heating, electric heating, heat pumps and biofuel boilers. The fossil fuels account for around 5 % of the heating market. Sweden is currently looking for alternative solutions in order to replace the fossil fuels. One of the solutions being studied is to have a Borehole Thermal Energy Storage (BTES) system that can store the excess heat produced from a Combined Heat and Power (CHP) plant during the summer. In previous studies, a d
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23

Dawson, Karen Margaret. "Advanced thermal hydraulic simulations for human reliability assessment of nuclear power plants." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/112392.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2017.<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 (pages 101-102).<br>Human Risk Assessment (HRA) in the nuclear power industry has advanced in the last two decades. However, there is a lack of understanding of the magnitude of the effect of thermal hydraulic (TH) uncertainties upon the failure
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24

de, Koninck David Andrew. "Thermal conductivity measurement using the 3-omega technique: applications to power harvesting microsystems." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22039.

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The optimal design of power generating microsystems requires accurate knowledge of the thermal properties of their constituent materials at the appropriate length scale. The goal of this thesis was to build an apparatus for measuring the thermal conductivity of thermally-insulating dielectric materials using the so-called 3-omega technique. This technique utilizes a microfabricated metal line deposited on the specimen to act as a resistive heater. When an alternating current (AC) voltage signal is used to excite the heater at a frequency ω, the periodic heating generates oscillations in the el
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Yu, Bo. "Power Factor Improvement and Thermal Conductivity Reduction -by Band Engineering and Modulation-doping in Nanocomposites." Thesis, Boston College, 2012. http://hdl.handle.net/2345/2623.

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Thesis advisor: Zhifeng Ren<br>Thermoelectrics, as one promising approach for solid-state energy conversion between heat and electricity, is becoming increasingly important within the last a couple of decades as the availability and negative environmental impact of fossil fuels draw increasing attention. Therefore, various thermoelectric materials in a wide working temperature range from room temperature to 1000 degrees Celsius for power generation or below zero for cooling applications have been intensively studied. In general, the efficiency of thermoelectric devices relies on the dimensionl
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26

Svensson, Oskar. "Electrohydraulic Power Steering Simulation : Dynamic, thermal and hydraulic modelling." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-265674.

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There are several benets of electrohydraulic power steering systems, as compared to hydraulicpower steering systems where the pump is driven directly by the engine of the vehicle. Someof these benets are increased eciency and improved steering performance. The purpose ofthis project is to create a simulation model of the electrohydraulic power steering system inSimulink, excluding the hydraulic circuit. The model should thus consist of the electric motor,the drive electronics, the control system, the hydraulic pump as well as the communication andinterface to the master simulation system in wh
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Linford, Patrick A. "Lithium ion power generator : a novel system for direct thermal to electric energy conversion." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111711.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 55-57).<br>Wireless sensing technology has advanced greatly, but a critical obstacle to miniaturization and true autonomy is how to power sensors. Lithium ion batteries have been ideal power sources due to their high power density, but autonomy requires some form of power generation. The unique demands of miniaturization require power generation that can be isothermal and have a small cross-section. Lithium ion b
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Williams, Daniel David. "Cold side thermal energy storage system for improved operation of air cooled power plants." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78194.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 81-82).<br>Air cooled power plants experience significant performance fluctuations as plant cooling capacity reduces due to higher daytime temperature than nighttime temperature. The purpose of this thesis is to simulate the detailed operation of a cold side thermal energy storage system in order to evaluate its potential. An organic Rankine cycle geothermal power station is used as an example application. Detailed sizi
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Conboy, Thomas M. "Thermal-hydraulic analysis of cross-shaped spiral fuel in high power density BWRs." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41309.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2007.<br>Includes bibliographical references (p. 199-201).<br>Preliminary analysis of the cross-shaped spiral (CSS) fuel assembly suggests great thermal-hydraulic upside. According to computational models, the increase in rod surface area, combined with an increase in coolant turbulence and inter-channel mixing will allow for a greater than 25% uprate in total core power, without loss of safety margin. Proper design of the rod dimensions can limit circumferential heat-flux to a peak-to-average ratio
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Lantz, Martin. "Azelio’s Thermal Battery for Combined Heat and Power : A Thermo-economic and Market Research Study." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280470.

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The objective of this thesis was to assess the market opportunities for two novel Carnot battery system solutions, one supplying power and low temperature heat as well as a system supplying medium temperature heat exclusively. To fulfill the objective, a methodology was developed and implemented to investigate the market potential, further two techno-economic models were developed and utilized to investigate the performance of such Carnot battery solutions. Based on the market review four industrial sectors were identified as most interesting and the geographical scope was confined to Europe.
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Roth, Michelle S. "Exploiting thermal effects for self-adaptive resonator stabilization and polarization mode engineering in high-power lasers /." [S.l.] : [s.n.], 2005. http://www.zb.unibe.ch/download/eldiss/05roth_m.pdf.

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32

FORSMAN, ERIK. "Carnot Batteries as a Power-to-X-to-Power Alternative : A Study on Optimization of Thermal Energy Storage Usage." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301849.

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The implementation of renewable energy sources continues the rise throughout the world as a means to combat the threats of climate change. This does however bring with it problems within the power sector. The intermittent nature of both solar and wind power means that the reliability in production that comes with many fossil-based power sources could be heavy reduced. With the addition of energy storage, the intermittency can be reduced as it allows for production to be shifted to better meet the demand. This thesis aims to evaluate how well the Carnot battery system can enable a more stable p
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Burton, Ludovic Nicolas. "Multi-Scale Thermal Modeling Methodology for High Power-Electronic Cabinets." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19808.

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Future generation of all-electric ships will be highly dependent on electric power, since every single system aboard such as the drive propulsion, the weapon system, the communication and navigation systems will be electrically powered. Power conversion modules (PCM) will be used to transform and distribute the power as desired in various zone within the ships. As power densities increase at both components and systems-levels, high-fidelity thermal models of those PCMs are indispensable to reach high performance and energy efficient designs. Efficient systems-level thermal management requires
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Molewyk, Mark Allen. "In situ control of lubricant properties for reduction of power cylinder friction through thermal barrier coating." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/92191.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 61-62).<br>Lowering lubricant viscosity to reduce friction generally carries a side effect of increased metal-metal contact in mixed or boundary lubrication, for example near top ring reversal along the engine cylinder liner. A strategy to reduce viscosity without increased metal-metal contact involves controlling the local viscosity away from top-ring-reversal locations. This paper discusses the implementation o
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Murrant, Daniel. "The water-energy nexus : quantifying the impact of water availability on future UK thermal power generation." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7212/.

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A future lack of available water may compromise the UK’s current energy policy to meet an increasing demand for electricity with more thermal generation. This research asks what impact a lack of available water will have on UK thermal generation by 2050 and aims to quantify this impact in terms of cost, generation technology, and cooling method. The UK’s future national water demand for nine electricity generation pathways was modelled. The regional water demand of one pathway; the Energy Technologies Institute’s ESME.MC pathway was then modelled. This identified how technology and cooling met
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Kretzschmar, Holger. "The Hybrid Pressurized Air Receiver (HPAR) for combined cycle solar thermal power plants." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/86377.

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Thesis (MScEng)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Concentrating solar power technology is a modern power generation technology in which central receiver systems play a significant role. For this technology a field of heliostats is used to reflect solar irradiation to the receiver located on top of the tower. An extensive review has shown that contemporary receiver designs face geometric complexities, lack of thermal efficiency as well as issues with durability and cost. The purpose of this study is to develop a new receiver concept that can potentially reduce these iss
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Otgonbaatar, Uuganbayar. "Methodology for characterization of representativeness uncertainty in performance indicator measurements of thermal and nuclear power plants." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/107279.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Nuclear Science and Engineering, 2016.<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 (pages 327-331).<br>In this thesis, a general Methodology framework to characterize, assess and quantify the representativeness uncertainty in performance indicator measurements in thermal and nuclear plants is presented. The representativeness
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Chaturvedi, Vivek. "Leakage Temperature Dependency Aware Real-Time Scheduling for Power and Thermal Optimization." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/870.

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Catering to society’s demand for high performance computing, billions of transistors are now integrated on IC chips to deliver unprecedented performances. With increasing transistor density, the power consumption/density is growing exponentially. The increasing power consumption directly translates to the high chip temperature, which not only raises the packaging/cooling costs, but also degrades the performance/reliability and life span of the computing systems. Moreover, high chip temperature also greatly increases the leakage power consumption, which is becoming more and more significant wit
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Pikčiūnas, Algirdas. "Vėjo elektrinių pagaminamos elektros enrgijos prognozavimo tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2006. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2006~D_20060621_004929-48043.

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Recently is topicality making wherewith more electrical energy from “clean” stockholding. Detractive hothouse gas exhaustion to the atmosphere. One “clean” energy is – wind power. Wind plans working in the commensurable electrical energy supply system, must “nuisance��. For this purpose essential wind electricity work forecast and respectively react to the situation. Wind power – station made electrical energy forecasting analysis I done sustaining by California experience. Forecasting is executable by wind forecast ground. Wind forecasts possible get from meteorological dimensional station or
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Blėdis, Tomas. "Sausų galios transformatorių panaudojimo tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040616_143628-98619.

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In this paper is present information about dry power transformers mechanical design, common electrical characteristics, and electrical characteristics. There compare oil transformers and dry power transformers. There are given conclusions about possible in practice use dry transformers and some to offer a suggestion how to pick and choose transformers.
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Rodríguez, Buño Mariana. "Near and far field models of external fluid mechanics of Ocean Thermal Energy Conversion (OTEC) power plants." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79495.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 126-130).<br>The world is facing the challenge of finding new renewable sources of energy - first, in response to fossil fuel reserve depletion, and second, to reduce greenhouse gas emissions. Ocean Thermal Energy Conversion (OTEC) can provide renewable energy by making use of the temperature difference between the surface ocean and deep ocean water in a Rankine cycle. An OTEC plant pumps huge volumes of wa
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Maidadi, Mohaman Bello. "Packed-bed rock thermal energy storage for concetrated solar power: enhancement of storage time and system efficiency." Thesis, Nelson Mandela Metropolitan University, 2013. http://hdl.handle.net/10948/d1020914.

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Solar thermal energy harvesting is a promising solution to offset the electricity demands of a growing population. The use of the technology is however still limited and this can most likely be attributed to the capital cost and also the intermittent nature of solar energy which requires incorporation of a storage system. To make the technology more attractive and effective, cheap means of harvesting solar energy and the development of efficient and inexpensive thermal energy storage devices will improve the performance of solar energy systems and the widespread use of solar energy. Heat stora
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Malmberg, Malin. "Transient modeling of a high temperature borehole thermal energy storage coupled with a combined heat and power plant." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-226160.

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Coupling High-Temperature Borehole Thermal Energy Storages (HT-BTES) with existing Combined Heat and Power (CHP) systems is a promising approach to increase energy efficiency of district energy systems through recovery of otherwise wasted heat. This solution is currently being discussed in Sweden by the company Tekniska Verken in Linköping AB, for storing waste heat from their CHP operation in summer in a HT-BTES and to utilize it during peaks in winter. This would increase the flexibility between energy supply and demand in one of their plants. The available supply temperature during charge o
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Francoeur, Mathieu. "NEAR-FIELD RADIATIVE TRANSFER: THERMAL RADIATION, THERMOPHOTOVOLTAIC POWER GENERATION AND OPTICAL CHARACTERIZATION." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_diss/58.

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This dissertation focuses on near-field radiative transfer, which can be defined as the discipline concerned with energy transfer via electromagnetic waves at sub-wavelength distances. Three specific subjects related to this discipline are investigated, namely nearfield thermal radiation, nanoscale-gap thermophotovoltaic (nano-TPV) power generation and optical characterization. An algorithm for the solution of near-field thermal radiation problems in one-dimensional layered media is developed, and several tests are performed showing the accuracy, consistency and versatility of the procedure. T
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Bikulčius, Ramūnas. "Elektros energijos gamybos valdymas restruktūrizuotose elektros energetikos sistemose." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2005. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2005~D_20050719_144126-69975.

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Purpose of this work is to propose and study new ways of automatic generation control (AGC) and ways for accounting of this service; formulate key methodology principles of payment for system services; estimate costs of automatic generation control.
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Quijada, Ezequiel. "Thermal Analysis of a Sea Wave Generator." Thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209197.

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Wave power has been increasing the interest of many researchers looking for alternative sustainable energy sources since the reserves have proved to be capable of satisfying a considerable percentage of the world´s energy demands. This option has not been adopted as a sustainable source since there are some challenges in the process of designing a low cost device that converts the kinetic energy of the waves into electric energy and that could still be efficient enough to be competitive against other options. A new proposal from Anders Hagnestål looks like a very promising way of moving forwar
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Kotze, Johannes Paulus. "Thermal energy storage in metallic phase change materials." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/96049.

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Thesis (PhD) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Currently the reduction of the levelised cost of electricity (LCOE) is the main goal of concentrating solar power (CSP) research. Central to a cost reduction strategy proposed by the American Department of Energy is the use of advanced power cycles like supercritical steam Rankine cycles to increase the efficiency of the CSP plant. A supercritical steam cycle requires source temperatures in excess of 620°C, which is above the maximum storage temperature of the current two-tank molten nitrate salt storage, which stores thermal
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Mahdavi, Mahboobe. "NUMERICAL AND EXPERIMENTAL ANALYSIS OF HEAT PIPES WITH APPLICATION IN CONCENTRATED SOLAR POWER SYSTEMS." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/400193.

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Mechanical Engineering<br>Ph.D.<br>Thermal energy storage systems as an integral part of concentrated solar power plants improve the performance of the system by mitigating the mismatch between the energy supply and the energy demand. Using a phase change material (PCM) to store energy increases the energy density, hence, reduces the size and cost of the system. However, the performance is limited by the low thermal conductivity of the PCM, which decreases the heat transfer rate between the heat source and PCM, which therefore prolongs the melting, or solidification process, and results in ove
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Miranda, Gilda. "Dispatch Optimizer for Concentrated Solar Power Plants." Thesis, Uppsala universitet, Byggteknik och byggd miljö, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402436.

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Concentrating solar power (CSP) plant is a promising technology that exploits direct normal irradiation (DNI) from the sun to be converted into thermal energy in the solar field. One of the advantages of CSP technology is the possibility to store thermal energy in thermal energy storage (TES) for later production of electricity. The integration of thermal storage allows the CSP plant to be a dispatchable system which is defined as having a capability to schedule its operation using an innovative dispatch planning tool. Considering weather forecast and electricity price profile in the market, d
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Das, Barun Kumar. "Optimisation of stand-alone hybrid energy systems for power and thermal loads." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2150.

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Stand-alone hybrid energy systems are an attractive option for remote communities without a connection to a main power grid. However, the intermittent nature of solar and other renewable sources adversely affects the reliability with which these systems respond to load demands. Hybridisation, achieved by combining renewables with combustion-based supplementary prime movers, improves the ability to meet electric load requirements. In addition, the waste heat generated from backup Internal Combustion Engines or Micro Gas Turbines can be used to satisfy local heating and cooling loads. As a resul
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