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Dissertations / Theses on the topic 'Turbine pump'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Walmsley, Nigel. "The numerical representation of pump-turbine performance characteristics." Thesis, University of Warwick, 1986. http://wrap.warwick.ac.uk/36663/.

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This thesis investigates the hydraulic transient analysis of hydro-power plants with particular emphasis being placed on the turbine and pump-turbine boundary conditions. A lack of suitable data, in the form of the machine performance characteristics, during the early stages of a hydro-power station's development led to the investigation of alternative sources of performance characteristics, not based on the testing of a hydraulically similar model turbine. Two methods of obtaining turbine performance characteristics were developed, one based on the published performance characteristics of typ

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2

Yildiz, Mehmet. "Design And Performance Analysis Of A Pump-turbine System Using Computational Fluid Dynamics." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613761/index.pdf.

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In this thesis, a parametric methodology is investigated to design a Pump-Turbine system using Computational Fluid Dynamics ( CFD ). The parts of Pump-Turbine are created parametrically according to the experience curves and theoretical design methods. Then, these parts are modified to obtain 500 kW turbine working as a pump with 28.15 meters head. The final design of Pump-Turbine parts are obtained by adjusting parameters according to the results of the CFD simulations. The designed parts of the Pump-Turbine are spiral case, stay vanes, guide vanes, runner and draft tube. These parts are desi

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3

Jandourek, Pavel. "Ventil na principu vířivé turbiny." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-316400.

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The presented work deals with basic characteristics of the side-channel machines. The intention is to replace the pressure reducing valve by low-specific speed side-channel turbine. Thereby creating a kind of turbine valve using energy, which would otherwise be dissipated in the valve. Pressure reducing valves are the source of large hydraulic losses and their replacement is possible, because the same resistance characteristics side-channel turbine and a pressure reducing valve.

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4

Davoodi, Mehdi. "High performance repair materials in hydraulic structures and machines." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285358.

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5

Ješe, Uroš. "Numerical study of pump-turbine instabilities : pumping mode off-design conditions." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAI090/document.

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Actuellement, la flexibilité et le stockage de l'énergie sont parmi les principaux défis de l'industrie de l'énergie. Les stations de transfert d'énergie par pompage (STEP), en utilisant des turbines-pompes réversibles, comptent parmi les solutions les plus rentables pour répondre à ces besoins. Pour assurer un réglage rapide du réseau électrique, les turbines-pompes sont sujettes à de rapides changements entre modes pompage et turbinage. Elles sont souvent exposées à un fonctionnement prolongé dans des conditions hors nominal. Pour assurer la stabilité du réseau, la zone d'exploitation contin

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6

Teuteberg, B. H. "Design of a pump-as-turbine microhydro system for an abalone farm." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4400.

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ENGLISH ABSTRACT: This document details the design process of a 97 kW microhydro system for Roman Bay Sea Farm in Gansbaai in the Western Cape Province of South Africa. It contains a literature study of microhydro power, with a focus on the use of Pump-as-Turbine technology and direct-drive systems. The literature study leads to several possible concepts for the project, which are then evaluated and the most suitable design is found to be a reverse running pump that powers a different pump through a direct drive system. Experimental data from KSB is used to test the accuracy of various c

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7

Wilkes, Kevin Wood. "Rotordynamic analysis of circumferentially grooved annular pump seals with turbulent flow and inlet swirl /." This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-12302008-063353/.

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8

Knebl, Viktor. "Termodynamické tepelné čerpadlo." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417536.

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This diploma thesis deals with the design of thermodynamic heat pump, used to utilize thermal energy of flue gases arised from the combustion of natural gas in a heat exchanger. The flow rates of the compader compressor, bypass compressor and turbine are calculated. Part of this thesis is simplified design of gearbox and economical evaluation of heat pump installation. The appendix of the thesis contains technical documentation.

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9

Hliboký, Samuel. "Studie nestacionárních jevů čerpadla v turbínovém režimu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444276.

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This diploma thesis deals with centrifugal pump running as a turbine. Basic working principles of a pump are included, both in pump and turbine regime. Experimental data obtained from laboratory test bed are compared with CFD simulation on slightly simplified geometry. Obtained results are then processed using spectrogram. Influence of time step and mesh size on results is also researched.

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10

Ozgen, Onur. "Design Improvements On Mixed Flow Pumps By Means Of Computational Fluid Dynamics." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/2/12608093/index.pdf.

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The demand on high efficiency pumps leads the manufacturers to develop new design and manufacturing techniques for rotodynamic pumps. Computational Fluid Dynamics (CFD) software are started to be used during the design periods for this reason in order to validate the designs before the pumps are produced. However the integration process of CFD software into the design procedure should be made carefully in order to improve the designs. In this thesis, the CFD software is aimed to be integrated into the pump design procedure. In this frame, a vertical turbine type mixed flow pump is aimed to be

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11

Tomšej, Radek. "CFD simulace odstředivého čerpadla pracujícího v turbínovém chodu – vliv mezery mezi oběžným kolem a statorem na výsledky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416650.

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This master‘s thesis deals with a centrifugal pump running in reverse (turbine) mode, often called “pump-as-turbine”. The introduction lists basic principles and information about the direct (pump) and reverse modes. Several methodologies for predicting reverse operating point and efficiency evolution are used and compared with simulation results. Using CFD simulations, results obtained with simplified (excluding impeller side wall gaps) and complete geometry (including impeller side wall gaps) are assessed. Furthermore, the results of impeller trimming are evaluated with an aim to find the ma

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12

Le, Fur Thierry. "Computational study of 3D turbulent air flow in a helical rocket pump inducer." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/43093.

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<p>A computational study of the air flow in a helical rocket pump inducer has been performed using a 3-D elliptic flow procedure including viscous effects. The inlet flow is considered turbulent and fully developed. The geometric, definition of the inducer blade shape and the calculation grid are first presented, followed by a discussion of the flow calculation results displayed in various new graphical representations.</p> <p> The general characteristics expected from previous experimental and analytical work appear in the simulation and were quantitatively studied. The tip leakage flow obser

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13

Clark, John Shaun. "Low load operation of turbine-driven boiler feed pumps." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/31576.

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Boiler feed pump turbines (BFPTs) are in use at a number of Eskom power stations. They utilise bled steam extracted from the main turbine in order to drive multistage centrifugal pumps which supply the boilers with feedwater. With an increase of renewables in the energy mix, the need for Eskom’s coal-fired power stations to run for extended periods at very low loads has arguably never been this great. Various systems affect the ability of these generation units to run economically at low loads. One such system is the boiler feed pump turbine and its associated pumps. A station was selected fro

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14

Jahn, Jan. "Úpravy čerpadla pro provoz v turbinovém režimu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401576.

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Hydraulic design of a hydrodynamic machine is designed to achieve a high value of energy transformation efficiency. Pumps and turbines have some different typical features in hydraulic design. With the aid of computational fluid dynamics, adjustments of the hydraulic parts of a standard centrifugal pump are assessed with the aim to increase hydraulic efficiency of the pump running as turbine. The impeller, volute casing and added draft tube are discussed.

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15

Rodrigues, Arnaldo. "Computational investigation of flow regimes and performance characteristics of a pump operating as a turbine." Thesis, Nottingham Trent University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442089.

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16

Ortego, Sampedro Egoï. "Étude d’un système hydropneumatique de stockage d’énergie utilisant une pompe/turbine rotodynamique." Thesis, Paris, ENSAM, 2013. http://www.theses.fr/2013ENAM0059/document.

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Le développement croissant de systèmes de stockages connectés au réseau électrique se voit stimulé par les problématiques de gestion de réseau liés entre autres à l'intégration croissante de technologies de production renouvelables. L'accumulation hydropneumatique d'énergie apparait comme une solution propre et économiquement intéressante dans le panel des technologies existantes. Cette étude analyse une configuration d'accumulation air-eau sans séparation, en cycle fermé et utilisant une pompe/turbine rotodynamique. Les principales problématiques en relation à ces choix techniques sont : les

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17

Wilkes, Kevin. "Rotordynamic analysis of circumferentially grooved annular pump seals with turbulent flow and inlet swirl." Thesis, Virginia Tech, 1991. http://hdl.handle.net/10919/46444.

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In this thesis an analysis is developed to predict the leakage and dynamic characteristics for circumferentially grooved turbulent annular seals used in turbopumps. The flow in the groove is modelled using turbulent shear layer theory and an entrance loss model is applied at the inlet and land regions of the seal. The governing equations are derived using Hirs’ turbulent lubrication theory. The equations are expanded to yield zeroth and first order perturbation equations for small rotor displacements about a centered position. The leakage and velocity distribution is obtained from a numerical

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18

Jandourek, Pavel. "Studie turbiny s vířivým oběžným kolem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230187.

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This thesis deals with proposal of constructional solving turbine with side channel. Basis for the design is lossy characteristics of the valve. The intention is to replace hydraulic closures by turbine with side channel runner. Hydraulic losses in the flow restriction in turn replaced by the electricity generation in the comparable characteristics of valve and turbine.

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19

Tyburec, Adam. "Zubové čerpadlo v turbinovém provozu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-416621.

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The objective of this diploma study is to develop and secure production of gear turbine with very low specific speed in comparison with conventional turbines. The first part of the work deals with already performed research of similar hydrostatic turbines. It is followed by construction design, including complete drawing documentation. The production of the prototype is secured by an external company. Finally, an experimental measurement of the characteristics of the designed turbine is performed in the laboratories of Fluid Engineering.

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20

Podešva, Adam. "Použití běžného odstředivého čerpadla jako turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444636.

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This work deals with the use of a centrifugal pump in turbine mode and control of the system where this machine is operated. The introduction describes and divides the various types of pumps and discusses the issue of Euler's pump and turbine equations. The flow control options are also described here. Part of the work is a research that examines the advantages and disadvantages of using a centrifugal pump in turbine mode, the possibilities of using this system and real applications in the Czech Republic and in the world. The main part is the design of a mathematical model in Microsoft Excel,

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21

Cirit, Ali. "Design And Performance Evaluation Of Mixed Flow Pumps By Numerical Experimentation And Axial Thrust Investigation." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608972/index.pdf.

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In this thesis a vertical turbine mixed flow pump that has a flow rate of 40 l/s and 16 mwc head at 2900 rpm is designed. Effect of design parameters are investigated and flow inside the pump is analyzed with the help of numerical experimentations. The designed pump is manufactured and tested in Layne Bowler Pumps Company and completed in T&Uuml<br>BiTAK - TEYDEB project. Pump is designed in the tolerance limits that are defined in the standard TS EN ISO 9906. Numerical experimentation results for performance charecteristics show the same trend with the test results. In addition, axial thrus

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22

Nilsson, Martin. "Expansionsmaskiner istället för strypventiler - en effektivisering." Thesis, Uppsala universitet, Institutionen för fysik och astronomi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-146322.

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In Uppsala CHP Plant, there are six pressure reducing valves to reduce the pressure from 15 to 3 bars, before six absorption heat pumps. During the process the energy is conserved but losses occur in form of exergy. The aim of this thesis is to reduce the losses of exergy. This can be done by letting turbines replace the pressure reducing valves. In this thesis an investigation has been done of the conditions today, the conditions after the change from pressure reducing valves to turbines and a comparison of three different types of turbine solutions. The three examined solutions are one turbi

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23

Mesnage, Hugo. "Modélisation et contrôle avancé pour les centrales de turbinage de moyenne et haute chute." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT025.

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L'intégration des énergies renouvelable à l'échelle du réseau provoque de nouveaux paradigmes : la première et plus importante modification provient du fait que la puissance électrique produite n'est plus maîtrisée mais dépendante de l'incontinence des sources renouvelables. Cette irrégularité de la production par rapport à la consommation nécessite le stockage de l'énergie lorsqu'elle est produite afin de la mettre à disposition pour plus tard. Les sites de transfert d'énergie par pompage (STEP), ou centrales de turbinage-pompage, sont, par leur vitesse d'action, capacité de stockage et aspec

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24

Mashkour, Mohammad. "Micro hydropower in water distribution systems." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17855/.

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Considering various applications of Pump as Turbine (PAT) as an effective source of reducing the equipment cost in small hydropower plants as well as the selecting process of appropriate location and suitable machinery are the main concerns of this study. Vary range of PAT settings criteria has been propound by taking into account the State-of-the-Art researches. The purpose of this study is to establish the effectiveness of pump as turbine, considering all the possible obstacles such as producer’s market interests, accessibility of technical information and mechanical limitation. Cuttin

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25

Koutecký, Vojtěch. "Hydraulický systém regulace vodní turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401001.

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The aim of this diploma thesis is to create a hydraulic system for water turbine control. The basic dimensioning of the hydraulic elements is included in order to build a functional hydraulic diagram.

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Kadlec, Stanislav. "Termodynamické tepelné čerpadlo." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-316916.

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The aim of the Diploma Thesis is to discuss the design and construction solution for circulation of the thermodynamic heat pump especially used in the heating industry with stoichiometric combustion of chosen natural gas. The basic components of the proposed heat pump are turbine, compressor and gearbox. To solve the presented aims, the thermodynamic calculation of the individual components, the determination of the efficiency of the whole equipment and the analysis of the physical properties of the natural gas with regard to the specified input and output parameters were considered. In additi

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27

Jacquet, Clément. "Investigation par Calcul numérique de la région en « S » des courbes caractéristiques d’une turbine-pompe réversible." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI055.

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Les Stations de Transfert de l’Énergie par Pompage (STEP) munies de turbines-pompes réversibles de type Francis (TP) permettent de stocker et de restituer de grandes quantités d’énergie avec des rendements très élevés. Celles-ci apparaissent comme un moyen viable d’assurer la réactivité et la stabilité du réseau électrique vis-à-vis de l’augmentation croissante des sources d’énergie renouvelables intermittentes. Pour répondre aux nouveaux besoins en régulation du réseau électrique, la technologie actuelle des STEP doit être adaptée. Accroître la réactivité requiert d’optimiser les procédures d

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28

Carlsson, Carin. "Modeling and Experimental Validation of a Rankine Cycle Based Exhaust WHR System for Heavy Duty Applications." Thesis, Linköpings universitet, Fordonssystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-81737.

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To increase the efficiency of the engine is one of the biggest challenges for heavy vehicles. One possible method is the Rankine based Waste Heat Recovery. Crucial for Rankine based Waste Heat Recovery is to model the temperature and the state of the working fluid. If the state of the working fluid is not determined, not only the efficiency of the system could be decreased, the components of thesystem might be damaged.A Simulink model based on the physical components in a system developed by Scania is proposed. The model for the complete system is validated against a reference model developed

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29

Moravec, Prokop. "Shape Optimization of the Hydraulic Machine Flow Passages." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-433572.

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Kordiovský, Jan. "Optimalizace průtoku vstřiků od KČ II° do systému SPP." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318675.

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The diploma thesis deals with the topic of the optimization calculation of the mass flow of injection from the condensing pumps of the second degree to the condensate of heating steam, flowing from the system of separation and reheating, with the main goal to achieve the maximum power of the block of the power plant. There is calculation of the secondary circuit of the nuclear power plant in Dukovany before and after the optimization. In the next part, there is calculated growth of electric power of the block, results are drawn in diagrams and technical solution is designed.

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Urbánek, Jaroslav. "Projekt modelu malé vodní elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221347.

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Master thesis consists of the construction of a small hydroelectric power play model for laboratory use. The first step is to calculate parameters required for the creation of the 2D model Banki turbine. Next part is a proposal and selection of individual components of the model, such as generator, turbine housing, water circuit, pump and alternator mounting. The last step is to launch the model and verify, if the model of a small hydroelectric power plant achieves the required parameters.

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Uherek, Jan. "Kondenzační parní turbína pro pohon napájecího čerpadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241704.

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This diploma thesis focuses on designing impulse stage steam turbine to be used as the feed pump drive. I consecutively carried out thermodynamic calculation, seals and bearings layouts, with the aim to determine the steam mass flow through the turbine. Furthermore, I conducted turbine blade toughness check-ups, determined the rotor critical rotational speed, check-up rotor critical place (bearing pin) for torsion, and created a clutch screws design. The final part of this thesis pursues the other operating states of the turbine. This thesis is amended by a mechanical drawing of the turbine tr

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Lopes, Luiz Carlos Nascimento. "AvaliaÃÃo de sistema eÃlio-elÃtrico de bombeamento de Ãgua." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6305.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>Esta dissertaÃÃo implementa uma planta de uma unidade de bombeamento suprida por eletricidade a partir da energia eÃlica, para viabilizar a extraÃÃo da Ãgua de poÃos. Instalada na EstaÃÃo de Engenharia de Pesca no Campus do Pici situado na Universidade Federal do CearÃ (UFC), em Fortaleza - CE, Brasil. A unidade dispÃe de um aerogerador (1 kW-220 Vca), um controlador de carga, um sistema de bombeamento de Ãgua a partir de poÃo atÃ um reservatÃrio elevado. A energia elÃtrica para o acionamento do sistema de bombeamento pode ser forn

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Pérez, Sánchez Modesto. "METHODOLOGY FOR ENERGY EFFICIENCY IMPROVEMENT ANALYSIS IN PRESSURIZED IRRIGATION NETWORKS. PRACTICAL APPLICATION." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/84012.

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Analyses of possible synergies between energy recovery and water management are essential for achieving sustainable improvements in the performance of pressurized irrigation networks. Improving the energy efficiency of water systems by hydraulic energy recovery is becoming an inevitable trend for energy conservation, emissions reduction, and increases in profit margins. This Ph.D. research is focused on the proposal and development of an optimization methodology that improves energy efficiency in pressurized irrigation networks. To develop this methodology, the main objective of this Ph.D. th

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Rondina, José Mateus. "Repotenciação de usinas hidrelétricas utilizando perfil alternativo de máquinas hidráulicas." Universidade Federal de Uberlândia, 2016. https://repositorio.ufu.br/handle/123456789/19670.

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A geração de energia limpa e sustentável ocupa, cada vez mais, lugar de destaque nas preocupações da humanidade. A otimização da utilização dos recursos naturais para essa finalidade, assim como para produção de alimentos, consumo de água, transportes e outras necessidades, torna-se a cada dia um desafio maior. Assim, a geração de energia elétrica, tendo como matriz os recursos hidrícos, ainda principal matriz energética instalada no Brasil, encontra-se no seu limiar de disponibilidade no que se refere a aproveitamentos por grandes plantas geradoras. A instalação de micro e miniprojetos de ger

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Olimstad, Grunde. "Characteristics of reversible-pump turbines." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19750.

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The primary goal for this PhD project has been to investigate instability of reversiblepump turbines (RPTs) as a phenomenon and to find remedies to solve it. The instability occurs for turbines with s-shaped characteristics, unfavourable waterways and limited rotating inertia. It is only observed for certain operation points at either high speed or low load. These correspond to either high values of Ned or low values of Qed. The work done in this PhD thesis can be divided into the three following categories. Investigate and understand the behaviour of a pump turbine: A model was designed in or

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Ellingsen, Rakel. "Stability Criteria of Reversible Pump Turbines." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26085.

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The objective in this Master's Thesis was to verify the stability criteria for a centrifugal pump. Operation of an unstable pump may lead to either exponential or oscillatory unstable behavior of both pressure and volume flow of the water in the conduit system. This is of course unwanted, and fulfilling the stability criteria is desirable. The idea is to test an unstable pump, which was done at the Technical University Berlin (TU) in Germany. Most of the test set-up was already installed, but a new pump and a pressure accumulator was inserted. Unfortunately the experiment was not able to

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Vidlák, David. "Využití absorpčních systémů v teplárenství." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378742.

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Main goal of this work is familiarization with basic features of absorption heat pumps and it’s growing importance on the market. In the first part of the work there is a research for clarifying facts associated with such pumps. In the introduction there are descriptions of basic information from the field of heating industry and its connections to our systems. Next there is a brief analysis of price changes in electricity and heat in the last five years. Main part of the analytical section is a description of the used absorption system. Second part of the work is focused on the calculation of

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39

Engin, Ertan. "Design, Construction And Performance Evaluation Of A Submersible Pump With Numerical Experimentation." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12606532/index.pdf.

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Due to the increasing demand, nonclog type sewage pumps are designed and manufactured in large amounts all over the world. However, a methodology on the design of these special duty pumps is not encountered in the literature. Therefore, the manufacturers tend to develop their own empirical methodologies. In this thesis, a nonclog pump is designed and constructed on the basis of suitable approaches of known centrifugal pump design methods. In this frame, a nonclog type submersible pump that is capable of handling solids, up to a diameter of 80 mm is aimed to be designed. The designed pump deli

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Peres, Gustavo Schultz. "Estudo experimental de uma bomba operando como turbina para acionamento de bombas centrífugas submersas." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/264641.

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Orientador: Antonio Carlos Bannwart<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-19T02:30:26Z (GMT). No. of bitstreams: 1 Peres_GustavoSchultz_M.pdf: 3246760 bytes, checksum: 3e597eb1e2f79e14822d3a7a24d80128 (MD5) Previous issue date: 2011<br>Resumo: O método de elevação artificial através do bombeio centrífugo submerso (BCS) é amplamente conhecido na produção de petróleo. Uma alternativa a este método é o hydraulic submersible pump (HSP) que consiste de uma bomba submersa aco

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Ma, Chenwen. "Retrofitting a Single-family Home with Increased Use of Renewable Energy." Thesis, KTH, Installations- och energisystem, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-215962.

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Buildings account for up to 40% of the total energy use in the world. Directives from the European Union have pointed out the significance of increasing the energy efficiency in buildings. New regulation in countries like Sweden has established that new buildings should fulfil regulations of Nearly Zero Energy Buildings (NZEB), providing the opportunity for renewable energy technologies to achieve these goals. In this paper, the retrofitting potential of renewable energy technologies for a single-family home in Sweden was investigated.The present work studied the characteristics of several ren

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Schober, Georg [Verfasser]. "Entwicklung eines Pump-Turbinen Konzeptes mit einer radial-axialen Beschaufelung / Georg Schober." München : Verlag Dr. Hut, 2016. http://d-nb.info/1106592514/34.

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Ramirez, Carlos. "Meso-machining of miniature space system components." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Morávek, Aleš. "Hydraulický agregát pro regulaci parní turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254353.

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This diploma thesis is focused on the design of high-pressure hydraulic unit to drive a regulation of condensation turbine. The aim is to calculate all the elements of the hydraulic system, piping design and the necessary drawings. The entire assembly consists of purchased parts from other manufacturers. Major oil tank and a safety catch tank is described in detail and will be made, not bought.

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Dudar, Stephen W. "Preliminary design study of an enhanced mixing eductor system for the LHA (R) gas turbine exhaust." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Dec%5FDudar.pdf.

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Wissinger, Gordon J. "Computational analysis of space transfer vehicle engine turbopump diffuser design for deep-throttling : by Gordon J. Wissinger /." Online version of thesis, 1991. http://hdl.handle.net/1850/11001.

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Yoshida, Brian Richard. "Compuational analysis of boundary layer control by suction in a space transfer vehicle engine turbopump diffuser /." Online version of thesis, 1992. http://hdl.handle.net/1850/11058.

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Bragantini, Mauro Fernando. "Estudo de uma bomba centrífuga submersa operando como turbina." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265657.

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Orientador: Antonio Carlos Bannwart<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências<br>Made available in DSpace on 2018-08-21T23:41:35Z (GMT). No. of bitstreams: 1 Bragantini_MauroFernando_M.pdf: 5693941 bytes, checksum: bef9d874ab134a24eff92a6991db0e51 (MD5) Previous issue date: 2012<br>Resumo: As bombas centrífugas submersas (BCS) são largamente empregadas para elevação artificial de petróleo, sendo, na sua configuração básica, acionadas por motores elétricos. Os motores elétricos são o elo mais sensível deste equip

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Alatorre-Frenk, Claudio. "Cost minimisation in micro-hydro systems using pumps-as-turbines." Thesis, University of Warwick, 1994. http://wrap.warwick.ac.uk/36099/.

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The use of reverse-running pumps as turbines (PATs) is a promising technology for small-scale hydropower. This thesis reviews the published knowledge about PATs and deals with some areas of uncertainty that have hampered their dissemination, especially in 'developing' countries. Two options for accommodating seasonal flow variations using PATs are examined and compared with using conventional turbines (that have flow control devices). This has been done using financial parameters, and it is shown' that, under typical conditions, PATs are more economic. The various published techniques for pred

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Mantilla, Gutierrez Weimar. "Towards Flexible Power Generation Short-term Optimization of a Combined Cycle Power Plant Integrated with an Inlet Air Conditioning Unit." Thesis, KTH, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263904.

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Combined cycle gas turbine power plants (CCGT), as part of the electricity generation fleet, are required to improve their flexibility to help balance the power system under new scenarios with high shares of variable renewable sources. Among the different possibilities to enhance the power plant performance, an inlet air conditioning unit offers the benefit of power augmentation and “minimum environmental load” reduction by controlling the gas turbine intake temperature using cold thermal energy storage and a heat pump. In this thesis, an evaluation of the conditioning unit impact over a power

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