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2967 Uppsatser om Wind power station - Sida 25 av 198

Energieffektivisering av ventilationssystemet i konsthallen Sandgrund Lars Lerin

Uppsala County has ambitious environmental aims for the planned residential area inÖstra Sala backe. In this thesis different energy sources have been evaluated todetermine which system that would be most favorable given currently availableinformation about the project. Planned energy usage has been divided into tap waterheating, space heating and power. Three base case scenarios were made with districtheating, small scale bio fuel and heat pump. Solar power and solar heating were thensimulated and the production from the two could individually be deducted from theenergy need in the base cases, constituting 9 different scenarios.

Modellering av reserv- och nödkraftsystem i JAS 39 Gripen

Simulation is a vital tool during development of JAS 39 Gripen, since money and time can be saved.The Auxiliary and Emergency Power System, AEPS, is a subsystem of the secondary power system in Gripen. It has the function of providing the aircraft with electrical and hydraulical power before activation and after deactivation of the main engine. The system also functions as backup in case of a safety critical problem in the main power supply system. The system basically consists of a control unit and an auxiliary gearbox. The gearbox is driven by an air turbine.

Avledning av öringsmolt (Salmo trutta) från turbinintag

Vattenkraftstationer, med dammar och turbiner, utgör hinder för nedströmsvandrande smolt. Syftet med denna studie var att undersöka turbindödligheten för öringsmolt (Salmo trutta) vid två kraftstationer, de befintliga ytlänsarnas avledningseffekt och om effekten kunde förstärkas genom mörkläggning i form av övertäckning av kraftkanalen med en presenning vid turbinintaget. Utöver detta var avsikten även att undersöka om det fanns något samband mellan smoltgrad och smoltens förmåga att förflytta sig mot havet. I Emån i Småland fångades 46 öringsmolt som radiomärktes och sattes ut vid två kraftstationer och pejlades dagligen i sex veckor. Det var en större dödlighet vid den övre stationen än vid den nedre.

ZigBee-teknikens möjligheter att trådlöst överföra EKG-signaler

In many clinical applications, it is desirable to transmit sensor information wireless. In earlier research, investigation transmit ECG signal using Bluetooth, was performed. However, when Bluetooth has some drawbacks it is of interest to investigate alternative methods, one such method is ZigBee. Bluetooth has higher data rate speed (1Mbps) than ZigBee (250kbps). However, Bluetooth consumes more power.

EU som normativ makt : en studie av det normativa inslaget i unionens politik gentemot Ryssland

With a base in Ian Manners? theory about Normative Power Europe ? that the European Union is to be seen as a normative power instead of a civilian or military ? this paper seeks to contribute to the discussion about identity by examine the normative elements of the union?s policies towards Russia between 1997 and 2013. Which norms are most important and how does the diffusion look? The findings show that democracy, rule of law and respect of human rights are among the most diffused norms, and this is more than often done by using the Russian interest in economic progress. Over time the European Union has taken on a more critical approach against Russia, while still appreciating their prosperous relation when it comes to trade and energy.

Utökad Diagostik med Simatic PDM(Process Device Manager

I Finspång tillverkas gas och ångturbiner. Verksamheten går under namnet Siemens Industrial Turbomachinery AB, som förutom att bygga upp turbiner som separata leveranser även projekterar kompletta kraftanläggningar, där turbinerna ingår, för att producera elektricitet, ånga och värme.Till de gasturbin kraftverk som levereras av Siemens Industrial Turbomachinery AB används ett Simatic PCS-7 styrsystem för att kontrollera turbinerna. För PCS-7 styrsystemet kan mjukvaran Simatic PDM (Process Device Manager) användas för diagnostisk analys av automations komponenter och intelligenta fältenheter. Målet med examensarbetet är att kunna varna tidigare för fel på automations komponenter och fältenheter så att man kan förebygga stillestånds tider som kan uppstå i en anläggning. Examensarbetet visar vad för slags funktioner Simatic PDM har och hur programmet kan utnyttjas i en anläggning.Examensarbetet innehåller en beskrivning av programmet Simatic PDM och PCS 7-styrsystemet.

Konceptstudie av kombinerad nödgenerator-trädgårdsredskap : Concept Study of a Combined Emergency Generator-Garden tool

The present study concerns a concept development of a product idea that Bengt Magnuson, associate professor, had when a heavy storm caused a widespread power failure of long duration. With a basic power-producing unit one should be able to get through a power loss. The product could also be useful for other tasks if different modules are connected, e g grass mower or snow-blower.According to the product idea the basic unit will be able to produce electric power enough for a fridge, freezer, TV, and a few electric lamps. Normally the basic unit can be used e g as a mower, when such a module is attached. An increased number of tasks would make the contraption useful and tempting for those who do not own an electrical power set in reserve.

Skådespelerskor i politiken : En innehållsanalys om mediers gestaltningar av kvinnliga och manliga politiker

As a starting point the society is more enlightened and has gained a greater awareness about the gender power structures and its different forms. Present research shows the continuous development into other shapes and comes into different expressions that might be unrecognised. In order to gain knowledge about the present structure of the gender power structure system, the aim of this study was to investigate framing of female and male politicians in media. The main question asked was: ?are there framing differences in the portraits of the male and female politicians?? In order to achieve results articles in the biggest Swedish daily newspaper were examined.

Bemötandet inom socialtjänsten : En kvalitativ studie om klienters upplevelser

The aim of this study was to examine how clients who have or have previously had a drug- and/or alcohol addiction experienced interchanges with social workers. In this study, eight semi-structured interviews were made with respondents from an out-patient clinic in a small town in Sweden. Questions were asked regarding clients? experience of the social workers' attitudes during the initial meeting as well as all continuing meetings. Other possible variables that affected the interchanges, either positively or negatively, including how the clients wanted to be treated, were also explored.

Chalmers oanvända datorkraft - Distribuering av arbete och energihantering med HTCondor

Chalmers University of Technology today have numerous computers which are never powereddown, at the same time there is a need for more computation power for researchers.Hence, we have investigated the possibility to use the computers for computing power andsecondly, if there is no work to be done, to put them into power saving mode.We have made a thorough study where we compared different distributing systems andin the end HTCondor was chosen as the best to implement. HTCondor is an excellent systemfor opportunistic use of computing power, i.e. make use of computers that no one elseis currently using. The system is used at several universities around the world with goodresults and would be excellent at Chalmers, where there is a need for such a system.Our implementation shows that HTCondor is well capable of handling unused computingpower. HTCondor can handle most file types that may be run on the system.

Maktdelning : och konstitutionellt rättighetsskydd

The topic of this master thesis in legal science is state law and constitutional law, or more specific judicalization, with the division of power and thus increased individual legal rights in various forms. Sweden has traditionally had a weak constitutional protection for the individual?s legal rights. The public power has been concentrated to the government and the courts have only played a marginal role. Since the implementation of the European convention of legal rights and with the ever-increasing importance of the legal system of the European Union, the Swedish legal system gone through changes of historical dimensions.This master thesis is based on the legal dogmatic method where laws, preparatory work, case law and doctrines have been systemized.

Energibolagens framtida datainsamling

The Swedish energy companies have several different systems for data collection of the energy consumption of their clients. Often computerized remote meter readers are put in practice in order to register the energy consumption of large companies. The majority of household clients, however, are read off by the assistance of manual methods. Household power consumption is read off once a year. As a result, these clients are not debited for their actual consumption; their invoices during the year are the result of estimations.

Sveriges och Europeiska Unionens biståndspolitik : En jämförande idéanalys ur ett postkolonialt perspektiv

The main aim of this study is to examine the development policies of Sweden and the European Union from a postcolonial perspective. Sweden and the European Union are increasingly coming to be viewed as normative powers rather than military powers. So how does the colonial past of the western societies affect the policies of today? Are there any signs of the power structures of the past, and if so, how are these power structures manifested in the development policies of today? Since both Sweden and the European Union have come to be viewed as normative powers they are compared with each other to highlight their similarities and differences. The results of the study shows that both Sweden and the European Union can be seen as carriers of western values and interests.

Solceller som energikälla och solskydd för tält

This degree project is an investigation of solar cells and their ability to deliver electric power as well as reducing the need for cooling. The main object of interest is a BASE-X shelter. The shelter is purchased by the Swedish Defence Materiel Administration, FMV to be used for command and camp in the new force called Nordic Battlegroup, NBG. The demand on the equipment is firstly that it should have a small weight to be easy to transport and handle and secondly to be easy to bring up fast. Therefore the choice of solar cell technology fell on thin film cells.

Den praktiska användningen av realtidsuppdaterad fri station

Idag kan det vara svårt att genomföra geodetiska mätningar med en fri station som sedan ska kunna refereras till ett känt geodetiskt referenssystem. Det pågår en ständig utveckling att ta fram nya metoder som kan lösa de problem som påverkar denna process.En möjlig framtida lösning kan vara realtidsuppdaterad fri station, förkortat Rufris. Rufris är en relativt ny metod för mätning som kräver tillgång till satellitsignaler men dock ingen tillgång till kända markerade punkter. Detta kan vara användbart i områden där stompunkter saknas eller där sådana antingen är gamla, icke tillförlitliga eller svårtillgängliga.Syftet med denna studie är att testa Rufris praktiska användbarhet och utvärdera dess prestanda i olika typer av miljöer för att ge underlag för framtida bruk av metoden. Testen genomfördes på tre olika platser på Kungliga Tekniska Högskolans(KTH) Campus i Stockholm under april 2014.Resultatet från studien visar att mätningarna från de flesta Rufris-etableringar avviker signifikant mot mätningar genomförda med statiska GNSS mätningar.

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