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Dissertations / Theses on the topic 'Thermal power plants'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Cottam, P. J. "Innovation in solar thermal chimney power plants." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10045417/.

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This thesis analyses novel technology for renewable electricity generation: the solar thermal chimney (STC) power plant and the suspended chimney (SC) as a plant component. The STC consists of a solar collector, a tall chimney located at the centre of the collector, and turbines and generators at the base of the chimney. Air heated in the collector rises up the chimney under buoyancy and generates power in the turbines. STCs have the potential to generate large amounts of power, but research is required to improve their economic viability. A state-of-the-art STC model was developed, focussing

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2

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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3

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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4

Assémat, Céline. "Management of thermal power plants through use values." Thesis, KTH, Elektriska energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-175811.

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Electricity is an essential good, which can hardly be replaced. It can be produced thanks to a wide rangeof sources, from coal to nuclear, not to mention renewables such as wind and solar. In order to meetdemand at the lowest cost, an optimisation is made on electricity markets between the differentproduction plants. This optimisation mainly relies on the electricity production cost of each technology.In order to include long-term constraints in the short-term optimisation, a so-called use value (oropportunity cost) can be computed and added to the production cost. One long-term constraint tha

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5

Rennie, Eleanor Jane. "Thermal performance of power station cooling towers." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335762.

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6

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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7

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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8

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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9

Darwish, Mazen. "Modular Hybridization of Solar Thermal Power Plants For Developing Nations." Thesis, KTH, Kraft- och värmeteknologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-104456.

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The current energy scenario in the developing nations with abundant sun resource (e.g. southern Mediterranean countries of Europe, Middle-East & North Africa) relies mainly on fossil fuels to supply the increasing energy demand. Although this long adopted pattern ensures electricity availability on demand at all times through the least cost proven technology, it is highly unsustainable due to its drastic impacts on depletion of resources, environmental emissions and electricity prices. Solar thermal Hybrid power plants among all other renewable energy technologies have the potential of rep

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10

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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11

Edwards, Jacob N. "Thermal energy storage for nuclear power applications." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/36238.

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Master of Science<br>Department of Mechanical and Nuclear Engineering<br>Hitesh Bindra<br>Storing excess thermal energy in a storage media that can later be extracted during peak-load times is one of the better economical options for nuclear power in future. Thermal energy storage integration with light water-cooled and advanced nuclear power plants is analyzed to assess technical feasibility of different storage media options. Various choices are considered in this study; molten salts, synthetic heat transfer fluids, and packed beds of solid rocks or ceramics. In-depth quantitative assessment

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12

Fernandez-Munoz, Raul. "Design of solar power plant with coupled thermal storage." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/16722.

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13

Palu, Ivo. "Impact of wind parks on power system containing thermal power plants = Tuuleparkide mõju soojuselektrijaamadega energiasüsteemile /." Tallinn : TUI Press, 2009. http://digi.lib.ttu.ee/i/?443.

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14

NASCIMENTO, WALLACE JOSE DAMASCENO DO. "BIFUEL CONVERSION OF THERMAL POWER PLANTS UNDER UNCERTAINTY: A REAL OPTIONS APPROACH." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2008. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=13379@1.

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FUNDAÇÃO DE APOIO À ESCOLA TÉCNICA<br>No Brasil, apesar da predominência da participação de usinas hidrelétricas no parque gerador, há alguns anos, devido ao Programa Prioritário de Termeletricidade (PPT), foram implantadas diversas centrais termelétricas movidas a Gás Natural. Muitas são as incertezas apresentadas aos agentes do Setor de Energia Elétrica no Brasil, e mais um risco tem ameaçado estas usinas: a oferta de Gás Natural. A conversão das usinas para bicombustível, possibilitando a utilização de Óleo Diesel como combustível alternativo, surgiu como opção para eliminar este risco. Fa

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15

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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16

Memon, Ejaz. "Environmental effects of thermal power plant emissions : a case study /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0016/MQ55524.pdf.

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17

George, K. V. "Source apportionment of particulate matter pollution around a pit head thermal power station." Thesis, IIT Delhi, 2016. http://localhost:8080/iit/handle/2074/7042.

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18

Spelling, James. "Hybrid Solar Gas-Turbine Power Plants : A Thermoeconomic Analysis." Doctoral thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121315.

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The provision of a sustainable energy supply is one of the most importantissues facing humanity at the current time, and solar thermal power hasestablished itself as one of the more viable sources of renewable energy. Thedispatchable nature of this technology makes it ideally suited to forming thebackbone of a future low-carbon electricity system.However, the cost of electricity from contemporary solar thermal power plantsremains high, despite several decades of development, and a step-change intechnology is needed to drive down costs. Solar gas-turbine power plants are apromising new alternat

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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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20

Wagner, Sharon J. "Environmental and Economic Implications of Thermal Energy Storage for Concentrated Solar Power Plants." Research Showcase @ CMU, 2011. http://repository.cmu.edu/dissertations/682.

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21

Nixon, Jonathan. "Solar thermal collectors for use in hybrid solar-biomass power plants in India." Thesis, Aston University, 2012. http://publications.aston.ac.uk/18722/.

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This thesis examined solar thermal collectors for use in alternative hybrid solar-biomass power plant applications in Gujarat, India. Following a preliminary review, the cost-effective selection and design of the solar thermal field were identified as critical factors underlying the success of hybrid plants. Consequently, the existing solar thermal technologies were reviewed and ranked for use in India by means of a multi-criteria decision-making method, the Analytical Hierarchy Process (AHP). Informed by the outcome of the AHP, the thesis went on to pursue the Linear Fresnel Reflector (LFR),

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22

Rawat, Anubhav. "Flow characteristics of high concentration fly ash slurries through pipelines." Thesis, IIT Delhi, 2016. http://localhost:8080/xmlui/handle/12345678/7100.

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23

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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24

Bruce, Robert Alasdair Wilson. "Impacts of variable renewable generation on thermal power plant operating regimes." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/20387.

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The integration of variable renewable energy sources (VRE) is likely to cause fundamental and structural changes to the operation of future power systems. In the United Kingdom (UK), large amounts of price-insensitive and variable-output wind generation is expected to be deployed to contribute towards renewable energy and carbon dioxide (CO2) emission targets. Wind generation, with near-zero marginal costs, limited predictability, and a limited ability to provide upward dispatch, displaces price-setting thermal power plants, with higher marginal costs, changing flexibility and reserve requirem

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25

Rader, Jordan D. "Loss of normal feedwater ATWS for Vogtle Electric Generating Plant using RETRAN-02." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31741.

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Thesis (M. S.)--Nuclear Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Abdel-Khalik, Said I.; Committee Member: Ghiaasiaan, S. Mostafa; Committee Member: Hertel, Nolan E. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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26

Howard, Dustin F. "Modeling, simulation, and analysis of grid connected dish-stirling solar power plants." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34832.

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The percentage of renewable energy within the global electric power generation portfolio is expected to increase rapidly over the next few decades due to increasing concerns about climate change, fossil fuel costs, and energy security. Solar thermal energy, also known as concentrating solar power (CSP), is emerging as an important solution to new demands for clean, renewable electricity generation. Dish-Stirling (DS) technology, a form of CSP, is a relatively new player in the renewable energy market, although research in the technology has been ongoing now for nearly thirty years. The firs

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Анкудинов, А. А., В. А. Васин, Л. А. Ермилов та Б. Б. Пайчадзе. "Опыт ОАО КТЗ в разработке и эксплуатации насосов для тепловых электростанций". Thesis, Изд-во СумГУ, 2002. http://essuir.sumdu.edu.ua/handle/123456789/21247.

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28

Ruiz-Cabañas, F. Javier. "Corrosion evaluation of molten salts thermal energy storage (TES) systems in concentrated solar power plants (CSP)." Doctoral thesis, Universitat de Lleida, 2020. http://hdl.handle.net/10803/671680.

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El protagonisme creixent de la tecnologia solar termoelèctrica entre el ventall de les energies renovables es centra en la seva capacitat d’adaptar la seva producció a la demanda energètica exigida. La gestionabilitat d’aquest tipus de centrals s’ha aconseguit amb la integració de sistemes d’emmagatzematge tèrmic en les mateixes. La major part dels sistemes d’emmagatzematge tèrmic, ja sigui els que s’utilitzen a nivell comercial com aquells que es troben en fase de desenvolupament proposen l’ús de sals inorgàniques foses com a medi d’emmagatzematge. Aquestes sals presenten l’inconvenient de

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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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30

Manente, Giovanni. "Analysis and Development of Innovative Binary Cycle Power Plants for Geothermal and Combined Geo-Solar Thermal Resources." Doctoral thesis, Università degli studi di Padova, 2011. http://hdl.handle.net/11577/3421590.

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This thesis analyzes binary cycle power plants (Organic Rankine Cycles) for electricity generation from low enthalpy geothermal resources. The objective is the maximization of the net power output by means of the proper selection of the working fluid and cycle parameters. A critical review of many studies on ORCs in the scientific literature is carried out to provide a basis for an optimization study having the exergy recovery efficiency as objective function. Two working fluids are analyzed taking into account both supercritical and subcritical pressures and different temperatures of the geot

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31

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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Guédez, Rafael. "A Techno-Economic Framework for the Analysis of Concentrating Solar Power Plants with Storage." Doctoral thesis, KTH, Kraft- och värmeteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-191339.

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Concentrating solar power plants can integrate cost-effective thermal energy storage systems and thereby supply controllable power on demand, an advantage against other renewable technologies. Storage integration allows a solar thermal power plant to increase its load factor and to shift production to periods of peak demand. It also enables output firmness, providing stability to the power block and to the grid. Thus, despite the additional investment, storage can enhance the performance and economic viability of the plants. However, the levelized cost of electricity of these plants yet remain

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Richter, Pascal [Verfasser], Martin Akademischer Betreuer] Frank, Siegfried [Akademischer Betreuer] [Müller, and Diaz Manuel J. [Akademischer Betreuer] Castro. "Simulation and optimization of solar thermal power plants / Pascal Richter ; Martin Frank, Siegfried Müller, Manuel J. Castro Diaz." Aachen : Universitätsbibliothek der RWTH Aachen, 2017. http://d-nb.info/1162498692/34.

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Bachelier, Camille [Verfasser], and R. [Akademischer Betreuer] Stieglitz. "Techno-economical analyses of linear solar thermal electric plants for dispatchable power generation / Camille Bachelier ; Betreuer: R. Stieglitz." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/1238148115/34.

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Beviss-Challinor, Lauren Margaret. "Design, build and test a passive thermal system for a loft : a roof solar chimney application for South African weather conditions." Thesis, Stellenbosch : Stellenbosch University, 2007. http://hdl.handle.net/10019.1/348.

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Thesis (MEng (Mechanical and Mechatronic Engineering))--Stellenbosch University, 2007.<br>ENGLISH: The design, construction and testing of a passive thermal system, a roof solar chimney, for a loft is considered. Unlike conventional solar chimneys the solar collector is constructed from corrugated iron roof sheets with the aim that it can be integrated into existing buildings at a lower cost or used in low cost housing developments. The main objective of the study was to determine the feasibility of such low-cost design to regulate thermal conditions in a loft, that is heating the loft du

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Dolek, Emre. "Comparison Of Iscst3 And Aermod Air Dispersion Models: Case Study Of Cayirhan Thermal Power Plant." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12609207/index.pdf.

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In this study, emission inventory was prepared and pollutant dispersion studies were carried out for the area around &Ccedil<br>ayirhan Thermal Power Plant to determine the effects of the plant on the environment. Stack gas measurement results were used for the emissions from the power plant and emission factors were used for calculating the emissions from residential sources and coal stockpiles in the study region. Ground level concentrations of SO2, NOx and PM10 were estimated by using EPA approved dispersion models<br>namely ISCST3 and AERMOD. The ground level concentrations predicted by t

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Ehtiwesh, Ismael Alagili Sassi. "Exergetic, energetic, economic and environmental evaluation of concentrated solar power plants in Libya." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/15882.

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Doutoramento em Engenharia Mecânica<br>The PhD project addresses the potential of using concentrating solar power (CSP) plants as a viable alternative energy producing system in Libya. Exergetic, energetic, economic and environmental analyses are carried out for a particular type of CSP plants. The study, although it aims a particular type of CSP plant – 50 MW parabolic trough-CSP plant, it is sufficiently general to be applied to other configurations. The novelty of the study, in addition to modeling and analyzing the selected configuration, lies in the use of a state-of-the-art exerge

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RIBEIRO, JUNIOR JOAQUIM A. "Um estudo simplificado da percepção pública dos benefícios e riscos de centrais termonucleares - sugestões para a comunicação de valor com o público." reponame:Repositório Institucional do IPEN, 2007. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11504.

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Made available in DSpace on 2014-10-09T12:52:37Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:25Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Rizzi, M. "HIGH TEMPERATURE OXIDATION PHENOMENA'S STUDY OF HIGH ALLOYED MATERIALS FOR POWER GENERATION PLANTS." Doctoral thesis, Università degli Studi di Milano, 2012. http://hdl.handle.net/2434/168364.

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The aim of the doctorate project is the study of the corrosion and oxidation behavior of some commercial and more recent SS and Ni based alloys for high temperature applications in order to verify their possible use either at operative conditions higher than conventional (temperature up to 900°C) or in different environment (oxygen, air, carburizing atmospheres). During the first year, the following aspects were investigated: - Microstructural characterization of solution annealed AISI 310N, 347HFG and 304 HCu (the latter supplied also in the shoot peened condition) was carried out. An homog

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Pragada, Gandhi, and Nitish Perisetla. "Utility-Scale Solar Power Plants with Storage : Cost Comparison and Growth Forecast Analysis." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301838.

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Renewable energy for energy production, like Solar, is turning out to be very pertinent in today's world [1]. It is very clear that Solar Energy is going to emerge as one of the key sources of energy in future. Moreover, the storage option is going to play an essential role to the future deployment of solar power plants. Concentrated solar power plants with thermal storage, photovoltaic plants integrated with battery energy storage, and hybrid plants are attractive solutions to obtain a stable and dispatchable energy production. Investors or policymakers usually find it challenging to come up

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Llovera, Bonmatí Albert. "Market role, profitability and competitive features of thermal power plants in the Swedish future electricity market with high renewable integration." Thesis, Uppsala universitet, Elektricitetslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-330392.

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The Swedish energy market is currently undergoing a transition from fossil fuels to renewable energy sources, including a potential phase-out of nuclear power. The combination of a phase-out with expansion of intermittent renewable energy leads to the issue of increased fluctuations in electricity production. Energy-related organizations and institutions are projecting future Swedish energy scenarios with different possible transition pathways. In this study the market role of thermal power plants is assessed in two future scenarios. The fast start-up time of gas turbines means that they can b

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Lundholm, Diana. "Thirsty coal: Assessing climate change impacts on water availability and vulnerability of thermal power plants in Poland up to 2050." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-445133.

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This thesis identifies the potential threats and impacts posed by climate change on the relationship between water availability and the Polish energy transformation sector. In doing so, the objective is to uncover and assess how vulnerable these components are to climate change. Poland provides an interesting case in a European context as the country’s energy sector is largely fueled by hard coal, and its established thermal power plant fleet requires large volumes of water at particular temperatures to operate at full capacity (Kosowski et al. 2019). Climate change is predicted to cause varia

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Nahhas, Tamar. "Materials and thermal storage systems by sensible heat for thermodynamic electro-solar plants." Thesis, Perpignan, 2017. http://www.theses.fr/2017PERP0027.

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L'énergie solaire est connue pour sa nature intermittente par rapport aux ressources d’énergie fossile. Cette observation souligne la nécessité d'utilisation d’un système de stockage d'énergie thermique. Le système de stockage thermocline est considéré comme un système de stockage rentable. La présente thèse vise à étudier le potentiel des roches basaltiques et siliceuses comme des candidates matériaux de stockage pour les centrales solaires concentrées. Les études expérimentales des propriétés thermo-physiques et thermomécaniques de ces roches à des températures allant jusqu'à 1000°C montrent

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Santos, Vitor Emanoel Siqueira. "Gás natural e carvão na geração termelétrica: reflexões sobre a competição/complementação das fontes na região sul do Brasil." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/106/106131/tde-12072017-144726/.

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Na expansão da geração termelétrica brasileira predominam como combustíveis o gás natural, os óleos combustíveis, a biomassa e o carvão mineral. A concentração das reservas nacionais de carvão no Sul provoca situação peculiar na entrada de novas fontes. Se por um lado a expansão privilegia o carvão e a consequente indústria extrativa local, por outro abre mão de tecnologias mais eficientes e limpas. Esta pesquisa apresenta os principais fatores que influenciam no desempenho dessas usinas e na contratação de geradores, caracterizando a expansão termelétrica. Posteriormente são criados quatro ce

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Eze, Chuks Paul. "Chemical, physical and morphological changes in weathered coal fly ash : a case study of brine impacted wet ash dump." University of the Western Cape, 2011. http://hdl.handle.net/11394/5420.

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>Magister Scientiae - MSc<br>Fly ash is the major waste material produced by power plants in the combustion of coal to generate electricity. The main constituents of fly ash are Si, Al, Fe and Ca with smaller amount of S, Mn, Na, K, and traces of many other elements such as Co, Cd, As, Se, Zn, Mo, Pb, B, Cu and Ni. Fly ash is usually disposed either by dry or wet disposal methods. These disposal methods have raised major environmental concerns due to the potential leaching of chemical species from the ash heap by ingress of rainfall and brine used to transport the fly ash to the dam. This stu

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Qiu, Bin. "Simulating Thermal and Chemical Spills in Coupled Cooling Reservoirs." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc279271/.

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Hot water discharges and potential chemical spills are factors that threaten water quality in cooling reservoirs of chemical and power plants. In this thesis, three models are used to analyze the impact of these factors in a particular case study.

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Nuutinen, Antti, and Giovanni Graziano. "Towards Flexible Cogeneration: Techno-economic Optimization of Advanced Combined Cycle Combined Heat and Power Plants integrated with Heat Pumps and Thermal Energy Storage." Thesis, KTH, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235820.

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The liberalization of electricity markets and a growing penetration of renewables is changing operation of electrical grids. The boundary conditions for the operation of conventional power plants are changing and, as such, an improved understanding of the varying loads and prices on the electricity grid is required to assess the performance of emerging combined cycle gas turbine (CCGT) concepts and to further optimize their design for these new markets in the pursuit of increasing their profitability, especially when considering combined heat and power (CHP). To increase the flexibility of CCG

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Trahan, Jamie. "A Technical and Economic Comparative Analysis of Sensible and Latent Heat Packed Bed Storage Systems for Concentrating Solar Thermal Power Plants." Scholar Commons, 2015. https://scholarcommons.usf.edu/etd/5598.

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Though economically favorable when compared to other renewable energy storage technologies, thermal energy storage systems for concentrating solar thermal power (CSP) plants require additional cost reduction measures to help transition CSP plants to the point of grid-parity. Thermocline packed bed storage is regarded as one potential low cost solution due to the single tank requirement and low cost storage media. Thus sensible heat storage (SHS) and latent heat storage (LHS) packed bed systems, which are two thermocline varieties, are frequently investigated. LHS systems can be further classif

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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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Pernpeintner, Johannes [Verfasser], Robert [Akademischer Betreuer] Pitz-Paal, and Stephan [Akademischer Betreuer] Kabelac. "Optical efficiency measurement of receivers for parabolic trough solar thermal power plants in solar simulators / Johannes Pernpeintner ; Robert Pitz-Paal, Stephan Kabelac." Aachen : Universitätsbibliothek der RWTH Aachen, 2018. http://d-nb.info/1191375315/34.

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