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Dissertations / Theses on the topic 'Farm power and machinery'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Boulanger, Isabelle. "Lillgrund Wind Farm Modelling and Reactive Power Control." Thesis, KTH, Elektriska energisystem, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-119256.

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The installation of wind power plant has significantly increased since several years due to the recent necessity of creating renewable and clean energy sources. Before the accomplishment of a wind power project many pre-studies are required in order to verify the possibility of integrating a wind power plant in the electrical network. The creation of models in different software and their simulation can bring the insurance of a secure operation that meets the numerous requirements imposed by the electrical system. Hence, this Master thesis work consists in the creation of a wind turbine model.

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2

Elshami, Omar Mohd Eltom. "A management information system for farm machinery management." Thesis, University of Newcastle Upon Tyne, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240836.

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3

Saadoun, Tahar. "Agricultural machinery selection and scheduling of farm operations." Thesis, University of Edinburgh, 1989. http://hdl.handle.net/1842/27322.

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The procedure of calculating annual machinery ownership costs from the discounted cash flows of the mortgaged capital cost, the repair and insurance charges and the resale income is extended to include the effect of loan rate and loan period on interest charges, the effect of capital allowances taking account of the actual balancing charges at the end of the period of ownership, and the effect of tax relief on the interest charges, repair costs and insurance premiums. The concept of marginal holding cost is applied to determine the optimum ownership period. The selection of tractor- plough com

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4

Bell, Paul Kevin Thomas. "The estimation of economic depreciation for Canadian farm machinery." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24475.

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The objective of this thesis was to estimate the rate at which four types of farm machinery lose value in Canada. Specifically, Canadian data on used machinery prices was utilized to produce estimates of economic depreciation for two-wheel-drive tractors, combines, square balers and large round balers. The data used in this thesis to make these estimates are special for two reasons. First of all, they represent the only extensive record of Canadian used farm equipment prices available. Most previous studies have based their estimates on American data, assuming that they apply equally well to

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5

Yule, Ian J. "A decision support system for farm machinery budgeting and selection." Thesis, University of Newcastle Upon Tyne, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242352.

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6

Nagaoka, Alberto Kazushi [UNESP]. "Desenvolvimento e avaliação do desempenho de um equipamento para ensaio dinâmico de rodado agrícola individual." Universidade Estadual Paulista (UNESP), 2001. http://hdl.handle.net/11449/101930.

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Made available in DSpace on 2014-06-11T19:31:39Z (GMT). No. of bitstreams: 0 Previous issue date: 2001-02-05Bitstream added on 2014-06-13T20:22:38Z : No. of bitstreams: 1 nagaoka_ak_dr_botfca.pdf: 2279820 bytes, checksum: 149eef5c845342281d3c5d15503e3456 (MD5)<br>O principal objetivo deste trabalho foi desenvolver, instrumentar e avaliar o desempenho de um equipamento para ensaio de pneus agrícolas acoplado a um trator, acionado pela sua tomada de potência, com a finalidade de ensaiar dinâmica e individualmente pneus em condição de campo e avaliar o efeito da passagem do pneu no solo. O equi

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7

Faller, Douglas. "Degradation of farm work and resistance to deskilling in the Canadian prairies, the case of farm machinery." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0010/MQ35834.pdf.

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8

Worley, Stacy K. "Bearing failure detection in farm machinery using low-cost acoustic techniques." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06302009-040529/.

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9

Nagaoka, Alberto Kazushi. "Desenvolvimento e avaliação do desempenho de um equipamento para ensaio dinâmico de rodado agrícola individual /." Botucatu : [s.n.], 2001. http://hdl.handle.net/11449/101930.

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Orientador: Kléber Pereira Lanças<br>Banca: Ulisses Rocha Antuniassi<br>Banca: João Eduardo Guarnetti Santos<br>Banca: Marcos Milan<br>Banca: Haroldo Carlos Fernandes<br>Resumo: O principal objetivo deste trabalho foi desenvolver, instrumentar e avaliar o desempenho de um equipamento para ensaio de pneus agrícolas acoplado a um trator, acionado pela sua tomada de potência, com a finalidade de ensaiar dinâmica e individualmente pneus em condição de campo e avaliar o efeito da passagem do pneu no solo. O equipamento foi desenvolvido no Núcleo de Ensaios de Máquinas e Pneus Agrícolas (NEMPA), per

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10

Mohammadi, Mohammad Mehdi. "PREDICTION OF WIND TURBINE BLADE FATIGUE LOADS USING FEED-FORWARD NEURAL NETWORKS." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444115.

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In recent years, machine learning applications have gained great attention in the wind power industry. Among these, artificial neural networks have been utilized to predict the fatigue loads of wind turbine components such as rotor blades. However, the limited number of contributions and differences in the used databases give rise to several questions which this study has aimed to answer. Therefore, in this study, 5-min SCADA data from the Lillgrund wind farm has been used to train two feed-forward neural networks to predict the fatigue loads at the blade root in flapwise and edgewise directio

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11

Al-Mimar, Samer. "Integration of solar and wind power at Lillgrundwind farm. : Wind turbine shadow effect on solar farm atLillgrund wind farm." Thesis, Högskolan i Halmstad, Energivetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28428.

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The supply of energy is a key factor in modern societies. As the old fossil sources for energy are dwindling, conflicts arise between competing nations and regions. Fossil energy sources also contribute to the pollution of the environment and emission of greenhouse gases. With renewable energy sources many of these drawbacks with fossil fuels can be eliminated as the energy will be readily available for all without cost or environmental impact. Combining the renewable energy sources will be very effective, particularly in commercial areas where lake of electricity is high. The cost of combinin

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12

McSwiggan, D. "Assessment of power system wind farm oscillatory perturbations." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.557967.

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The modern power system has undergone a significant transformation in the way it generates electrical energy. Increased levels of renewable generation has resulted in a reduction of conventional thermal plant and as a consequence introduced new challenges for network managers. Monitoring of recent power transfer activity between the regional power systems of Ireland has identified periods of sustained electromechanical mode resonance. As a matter of technical coincidence power pulsations at a frequency that coincides with existing system electrical modes have been detected at fixed-speed wind

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13

RIVERO, CÁMARA FRANCISCO JOSÉ. "POWER DEVIATION ANALYSIS OF THE ROCKNEBY WIND FARM." Thesis, Högskolan i Halmstad, Energivetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-28453.

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Nowadays the globalization and the economy expansion of the emerging countries demand anincreasing amount of energy. Therefore, energy production as well as the efficiency of energyusage, is essential for future developments of societies. Renewable energies appear as a turnkeysolution that could support the growing demands, and at the same time not being harmful to theenvironment [1]. Within the types of renewable energies, wind energy could be considered asone with large potential.In this paper I present the study of a Swedish wind farm placed in Rockneby.Once the wind turbines were installed

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14

Ketelaar, Jan P. J. "The effective use of power in Longwall coalwinning machinery." Thesis, University of Newcastle Upon Tyne, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278735.

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15

Peng, Y. "Novel robust control of damping oscillations in power systems with multi-machine wind farms." Thesis, University of the West of England, Bristol, 2014. http://eprints.uwe.ac.uk/22983/.

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With the growth in requirement for a high reliability of power supply, stability of the power system and the minimum requirement for control systems becomes more and more significant. The most popular way to solve the problem of stability is to install power system stabilizers (PSSs) on synchronous generators in related power systems. The conventional methods for designing PSS are generally based on the compensation approach for the phase and eigenvalue of the generator model. In recent decades, H-norm based robust PSS has been developed because of the system uncertainty of power grids. In ano

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16

Sogand, Yousefbeigi. "Wind Farm Optimization." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615685/index.pdf.

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In this thesis, a mixed integer linear program is used to formulate the optimization process of a wind farm. As a start point, a grid was superimposed into the wind farm, in which grid points represent possible wind turbine locations. During the optimization process, proximity and wind interference between wind turbines were considered in order to found the power loss of the wind farm. Power loss was analyzed by using wind interference coefficient, which is a function of wind intensity interference factor (WIIF), weibull distribution and power of the wind turbines. Two different programs<br>Ge

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17

Persaud, Suresh Chand. "Investigation market power and asymmetries in the retail-to-farm and farm-to-retail price transmission effects /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488196234908542.

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18

Bathe, Martin J. "On-line condition monitoring of power press tooling using ultrasonics." Thesis, Birmingham City University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316614.

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The principal objective of the research programme was to develop a technique for monitoring the condition of power-press cutting tools using ultrasonics. The principle of the technique was based upon the reflection of Surface Acoustic Waves (SAWs) from the tooling's cutting edges, and the main aim of the research was to establish the relationship between reflected SAW amplitude and tool edge condition. Three approaches were used to establish the relationship, namely on-line experiments, off-line bench-top experiments, and mathematical modelling. The modelling work involved using Transmission L

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19

Hales, William M. M. "The effect of tooth geometry on power hacksaw blade performance." Thesis, Sheffield Hallam University, 1986. http://shura.shu.ac.uk/19742/.

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Published work concerning the influence of tooth geometry on hacksaw blade performance has been reviewed. By testing standard and modified hacksaw blades the author has shown that, contrary to previous belief, pitch is not a parameter which affects blade performance. Furthermore experimental evidence is presented to show that gullet size and shape significantly affect blade performance. The author proposes that restriction of chip flow by the gullet causes very inefficient metal removal. This is supported by examination of hacksaw chips, and a theoretical model has been developed to show how r

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20

Berglund, Arne. "Control System for Reactive Power of an Offshore Wind Farm." Thesis, Uppsala University, Department of Physics and Astronomy, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-124571.

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<p>Until just a few years ago wind farms where excluded from many of the requirementsthat can be found in grid codes. But as the numbers of wind farms have grown as wellas the sizes of them, the requirements to connect them to the grid have becomemore stringent. In this thesis it has been investigated if it’s possible to design a controlsystem that controls the reactive power from an offshore wind farm, so that the gridcode requirements regarding reactive power are fulfilled. By controlling the reactivepower the dynamic variations in the voltage are decreased. The regulator should alsobe able

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21

Zhou, Fengquan 1969. "Modeling and analysis of wind farm impacts on power systems." Thesis, McGill University, 2005. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82650.

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The wind energy industry has undergone a dramatic transformation during the last decade. The total operating wind power capacity in the world has increased greatly. As more and more attention is paid to the increase in both the size and number of wind farms, a number of problems should be investigated in more detail. The voltage stability problem primarily focuses on the reactive power management that affects voltage stability and transmission losses. Wind power farm installations that have the potential to displace a large percentage of fossil-fuel generation must be designed to avoid

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22

Foster, S. "Power Electronic Solutions for Wind Farm Operation and Grid Integration." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517307.

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23

Baros, Stefanos. "Distributed Control for Wind Farm Power Output Stabilization and Regulation." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/721.

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Modern power systems are characterized by an increasing penetration of renewable energy generating units. These aim to reduce the carbon emissions in the environment by replacing conventional energy generating units which rely on fossil fuels. In this new power systems composition, wind generators (WGs) dominate, being one of the largest and fastest-growing sources of renewable energy production. Nevertheless, their unpredictable and highly volatile power output hinders their efficient and secure large-scale deployment, and poses challenges for the transient stability of power systems. Given t

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24

Walbrecht, Donald Augustus. "The machinery of alliance : Anglo American air power diplomacy 1917-1965." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251573.

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Many British and American critics have argued that the wartime 'Special Relationship' ended after World War H. Britain, buffeted by postwar shocks such as the end of Lend-Lease and atomic sharing, and by the lack of U. S. support during the Suez Crisis, felt increasingly demoted from its status as a great power, which had formerly been consulted by U. S. leaders on all matters of international importance. Despite those early post-war political dismissals, the USAF and the RAF began a Cold War linkage, which grew into a fifty-year association that was closer than any comparable defence relation

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25

Shellenberger, Michael J. C. "Design considerations for variable power split hydraulic drives for industrial applications." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=655.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains x, 91 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 68-69).

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26

Ward, Christopher M. S. "Novel NDE techniques in the power generation industry." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11656/.

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The thesis presented here comprises the work undertaken for research into novel NDE techniques in the power generation industry. This has been undertaken as part of the Engineering Doctorate Scheme run by the Research Centre for Non-Destructive Evaluation (RCNDE), which aims to bridge the technological gap between university research and industrial application. In this case, the scheme consisted of two projects completed in conjunction with RWE npower looking at current NDE problems in steam turbine and steam-raising plant. The first project was concerned with detecting microstructural transfo

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27

Karkafi, Fadi. "Nonstationary vibration diagnostics of rotating machinery : Application to aeronautic power transmission systems." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0132.

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Le bon fonctionnement des machines tournantes repose sur la surveillance vibratoire de composants rotatifs fragiles tels que les engrenages et les roulements. Concernant plus particulièrement le cas des systèmes de transmission de puissance en aéronautique, la surveillance vibratoire présente des défis considérables qui sont abordés dans cette thèse : (i) les régimes de fonctionnement non stationnaires, qui nécessitent l'adoption d'approches synchrones, (ii) les interactions complexes entre différents sous-systèmes, susceptibles de masquer ou perturber les signaux de diagnostic et (iii) le bru

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28

Goru, Sarat. "Influence of Turbine Spacing in a Tidal Farm on Power Output." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1471254082.

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29

Fargo, Timothy Joseph. "Farm animal sanctuaries postdomestic activism and the transformative power of place /." Diss., Restricted to subscribing institutions, 2009. http://proquest.umi.com/pqdweb?did=1723178161&sid=12&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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30

Muchala, Subhash. "Impact of tidal turbine support structures on realizable turbine farm power." Thesis, University of Oxford, 2017. http://ora.ox.ac.uk/objects/uuid:12db3e87-650b-4784-b68c-c81636e72118.

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This thesis discusses the importance of tidal turbine support structures through analytical and computational modelling. A head-driven analytical channel model was first developed to determine the sensitivity of the flow to the presence and type of support structures. It showed that there was a significant potential reduction in farm power output even when only considering approximate force coefficients for rotor and support structure. To confirm these findings, computational simulations were performed on a full-scale turbine to obtain more accurate force coefficients considering full rotor-su

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31

Al-Mousawi, Fadhel. "Adsorption system for cooling and power generation using advanced adsorbent materials." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8641/.

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This thesis investigates the feasibility of producing electricity and cooling simultaneously utilising low-grade heat sources by incorporating an expander within the adsorption cooling system or by integrating an Organic Rankine Cycle with water adsorption cooling system. Advanced physical adsorbent materials have been investigated for the first time to generate cooling and electricity simultaneously utilising CPO-27(Ni), MIL101(Cr), and AQSOA-Z02 and compared to commonly used Silica-gel. Two innovative configurations of water adsorption systems for cooling and electricity were investigated. I

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32

Khader, M. A. "Development of a micro gas turbine for concentrated solar power applications." Thesis, City, University of London, 2017. http://openaccess.city.ac.uk/19156/.

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The main objective of this research is to enhance the performance of a solar powered Micro Gas Turbine (MGT) by exploring suitable methods to be applied to the turbomachinery components to increase their efficiency and improve the predictability of their performance over the operating range of the MGT. A novel idea of reducing turbine rotor friction losses through adding riblets to the rotor hub was explored thoroughly. Computational Fluid Dynamics (CFD) has been used to study the effects of those features at design point conditions of the MGT. Riblets with different height and spacing have be

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33

Hines, Paul. "WindSim Study of Hybrid Wind Farm in Complex Terrain." Thesis, Högskolan på Gotland, Institutionen för kultur, energi och miljö, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-216994.

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A annual nergy production analysis was undertaken to compare wind resources and annual energy production as estimated by WAsP and Windsim. Nordex Sverige AB has designed a wind farm with the help of WAsP and this study will involve the examination of this site with Windsim. Two site formations are of interest, one with the same class of turbine and one with a mix of two turbine types. The study is interested in the effect on annual energy production as estimated by the different software of employing a hybrid layout using wind turbines of different height.The results showed that whilst initial

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34

Skorupa, Jan J. "Wear of tube mill liners for South African power industry." Thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/23382.

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35

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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36

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

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

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37

Liu, Guoping. "Oscillation monitoring system based on wide area phasor measurements in power systems." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Summer2010/g_liu_060110.pdf.

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Thesis (Ph. D.)--Washington State University, August 2010.<br>Title from PDF title page (viewed on July 23, 2010). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 76-81).

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38

Lotfi, Ashraf W. "The electrodynamics of high frequency magnetics in power electronics /." This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-171908/.

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39

Jansson, Anton. "INVESTIGATING DIMMING OF OBSTRUCTION LIGHTS IN A SWEDISH WIND FARM." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-299367.

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The demand and need for alternative obstruction marking has become a significant challenge for the wind power development in Sweden. While the development of wind turbines pushes for higher heights, the need to denote them as possible obstacles for aviation increase. To reduce undesired effects of the aviation warning lights in the landscape, various technologies for reducing the light emitted have been developed. One of these technologies control the lights’ output by dimming them based on measurements of the prevailing visibility in the vicinity of the wind farm.Visibility controlled obstruc

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40

Lindgren, Magnus. "Engine exhaust gas emissions from non-road mobile machinery : effects of transient load conditions /." Uppsala : Dept. of Biometry and Engineering, Swedish Univ. of Agricultural Sciences, 2004. http://epsilon.slu.se/a481.pdf.

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Dockter, Shona Ann. "Women's Power: A Cross-Generational Exploration of One German-Russian Farm Family." Thesis, North Dakota State University, 1992. https://hdl.handle.net/10365/27941.

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Exploration of the familial power women possess is growing as sociologists and anthropologists recognize the legitimacy of power internal to the family. The focus of this research was to uncover the forms of power German-Russian women held as they operated in the private sphere of the family. Attention also focused on the transference of women's power, and the family power dynamics unique to farm families. Members of three generations of one German-Russian farm family were interviewed. The results indicated German-Russian women operated from bases of power derived from their roles as farm wive

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42

Alsharif, Sameer. "Wind Farm Cooperative Control Strategies for Optimal Power Generation and Frequency Control." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1491404817152236.

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Al, Hamed Hassan. "ONSHORE WIND FARM REPOWERING ALTERNATIVE SCENARIOS AND COST ASSESSMENT." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435161.

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Many reasons to consider extending the useful time of ageing wind farms. Like to take advantage of it being located in a good wind source, besides existing infrastructure, etc. Repowering can be an appropriate option for the ageing wind farm that suffering less yield energy and increment of cost of operation and maintenance. The thesis discusses the repowering potential of old wind farms. The case study is implemented on a selected wind farm in Denmark. Different repowering scenarios were considered with the technical-economic assessment for each scenario to determine which scenario is viable

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44

Austin, Lisa. "An experimental and theoretical investigation of noise and power reduction in high speed cable making machinery." Thesis, University of Southampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245051.

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45

Wong, Yuen-wah, and 黃婉華. "Performance prediction model for a solar water pump." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31223722.

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46

Zelaya, de la Parra H. "Microprocessor-controlled cycloconverter for excitation of a doubly-fed induction generator." Thesis, University of Bradford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.376697.

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47

Wong, Yuen-wah. "Performance prediction model for a solar water pump /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21607424.

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48

Gagakuma, Bertelsen. "Variance Reduction in Wind Farm Layout Optimization." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7758.

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As demand for wind power continues to grow, it is becoming increasingly important to minimize the risk, characterized by the variance, that is associated with long-term power forecasts. This thesis investigated variance reduction in power forecasts from wind farm layout optimization.The problem was formulated as a multi-objective optimization one of maximizing mean-plant-power and minimizing variance. The ε−constraint method was used to solve the bi-objectiveproblem in a two-step optimization framework where two sequential optimizations are performed. The first is maximizing mean wind farm pow

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49

Ghavami, M. "Cycle analysis and optimisation of micro gas turbines for concentrated solar power." Thesis, City, University of London, 2017. http://openaccess.city.ac.uk/19227/.

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In recent years there has been an increasing interest in power generation using small-scale concentrated solar power units. Currently, photovoltaics are the main commercialised technology thanks to their low capital cost. However, their relatively low efficiency and power density has motivated research on the application of thermal engines. Dish-Stirling systems achieve reasonable efficiencies, but are relatively expensive and unreliable because of their technical complexity. The reliability of micro gas turbines and their potentially lower costs has motivated the current research, which is pa

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Montoya, Moyá Joan. "Study of data of a wind farm." Thesis, Linköping University, Linköping University, Department of Management and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-18651.

Full text

Abstract:

<p>Nowadays, due to global warming and the depletion of petroleum reserves, renewable energies have gained special prominence. At the moment, wind energy is the most successful renewable energy resource, and the technology to convert this wind energy into electricity has been very developed. As a consequence, the costs per kWh of generation have decreased and it has become a competitive alternative for conventional fossil-fuel power plants to generate electricity.However, a lot of factors and variables are involved in wind power generation. In the first part of this document, some of this fact

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