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4221 Uppsatser om Future Electricity Networks - Sida 12 av 282

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.

På egna ben? En kvalitativ studie om gymnasieelevers framtidssyn.

AbstractThe purpose of this essay was to examine how young people who are about to graduate from high school define and value their future. We also wanted to se which emotions they associate with their future and what or who influences them in their choices in life.The questions for our study were:What does it mean for these youths to become an adult?What images do they have of future education, profession and unemployment?What or who influences the picture they have of their future?What kind of attitude do they have towards the future?We approached the research with a qualitative method and interviewed ten youths in high school. Our conclusion was that the youths had an ambivalent attitude towards becoming adults; it was scary and yet exciting. The youths had the impression that education was important in order get a good job and to avoid unemployment.

Energisystemanalys av ABB AB LV Motors

With a larger awareness of the climate changes and increasing electricity prices, energy efficiency measures in the industry have become more common. By rationalize the activity and by the same time decrease the emission of greenhouse gases the company can both save money and reduce negative environmental impact. For the Swedish industries the electricity price have traditional been relative low, which has resulted in a considerable larger usage than other European countries. By a deregulation of the European electricity market the electricity price will level off between the countries, which will cause a higher electricity price in Sweden than we are use to. To prevent that the Swedish industry don?t lose competitiveness against the other European countries, it will require energy efficiency activities in all different forms.ABB Sweden has decided to decrease their total energy usage with five percent in two years.

 Den första inblicken i regionala företagarföreningar :  En fallstudie av Örebro Promotion

Many studies have been conducted of different types of business networks in recent years. Despite this, there is a lack of research concerning industry-transcending formal networks which are limited to a specific region. We have conducted a case study of Örebro Promotion, which is an industry-transcending network including over 500 members. Örebro is a medium-sized city in the middle of Sweden. The purpose with our study is to create an understanding of why enterprises choose to be a part of the network and what they feel is the gain of their membership.

Turbinkretspump system - Kraftvärmeverket i Borås

The Rya power plant in Borås produces district heating, district cooling and electricity. The plant is owned by Borås Energi och Miljö AB and is run by Dalkia Facility Management AB.In order to get the best heat exchange from the district hot water a pair of twin pumps and a turbine circuit pump are used as return pumps. Turbine circuit pumps are used to increase the pressure through the heat exchangers at the power plant. The pumps are in use when the flow is over 2 000 m3 h-1 and during the summer when re-cooling is used to improve the effectivens of the heat boilers.Since the pumps, that are parallel connected, rotating at a fixed rate per minute, the pressure is regulated with regulating valves. This report shows that during the 4,300 hours that the pumps where in use, energy corresponding to 590 MWh was wasted.


Utveckling och tillämpning av modeller förkvantifiering av de ekonomiska konsekvensernaav ökad förbrukningsflexibilitet inom eldistribution

One step towards a more sustainable energy system is to create a more flexible electrical grid, where increased demand response among electricity consumers can play an important role. A distribution grid owner can encourage their customers to use electricity more evenly distributed during the day by introducing different types of grid fees such as time-differentiated power tariffs. In this master thesis, the theoretical economic impact of a flattened load profile for a distribution grid owner is investigated. Different factors that impact the distribution grid owner?s economy are identified and two are chosen to be quantified; losses in the grid and the fee to the feeding grid.

Samarbete och nätverksbyggande över kommunens gränser : En studie om Norrköpings kommuns medlemskap i Sweden Emilia Romagna Network utifrån ett aktör-nätverksperspektiv

Social networks have increased significantly during the latest decades, but what does the cooperation include and how does the network processes look like? Networks are not specific for communities in the 2000?s or for that matter human organisations, but the ability to build networks and introduce more actors to the organisation have become easier with today?s communication technology. The study is about the Norrköping Municipality membership in the transnational network Sweden Emilia Romagna Network (SERN). It gives an insight into how networking and cooperation can be seen by politicians and officials, based on mission statements and the reason why a municipality choose to participate in transnational networks. The study aims to examine how Norrköping Municipality uses the SERN network and what the network have resulted in since the beginning of the municipality membership in 2005. It is a qualitative study which involves interviews with officials and politicians from the Municipality of Norrköping and textual material from SERN?s strategy documents and policies.

Centralitet och periferi i det nya Europa : Städer som regionala nav i samarbete och konkurrens

European cities of today are under the challenge to find ways to stay competitive and flourish in a rapidly changing world, where the old patterns of centrality and periphery not necessarily holds true. New and improved communication networks, a changed political geography in Europe, and the globalisation of not only the financial and industrial markets but also to a certain extent the globalisation of people, have all led to great challenges for cities and regions.In a changed spatial reality the classic monocentric models are challenged by newer models of urbanisation. The polycentric urban region is one such model which has been used to describe urban regions like the Randstad in the Netherlands and the Rhein-Ruhr region in Germany. Regions which lack the single dominant central city of the monocentric models of old, and instead shows a high degree of more equal-sized and sometimes more specialised cities in regional cooperation. The polycentric urban region is in that aspect a possible model for how other urbanised regions in Europe may act to be able to position themselves as attractive urban regions and regional hubs in the European urban network.Polycentric urban regions are not a universal solution, though.

Äldres framtidssyn och funderingar med fokus på vård och omsorg

The western societies is characterized by a strong future concern and the members of the society are valued most of all according to their capability to produce. In our time the elder ness is representing a rapidly increasing number of relatively well kept elders. What sight of the future does the aging human have? Are one meditating of what kind of service and care one are going to need? The purpose with this study was to describe how individuals in ages between 60 and 96 sees, both the future and their coming need for care in relation to sex, age, social activities and experienced health. The material was taken from ?SNAC-Blekinge? witch is a part of a bigger national study; SNAC (The Swedish National study on Aging and Care).

Bluetooth-implementation för Netbiter EC350

In industries today the demand for reading the state of industrial equipment and thus prevent machine breakdown, is increasing. The company HMS Industrial Networks AB has a product on the market, Netbiter EC350 that is used to read sensors and thus find out the condition of industrial equipment. By reporting scanned data to users through a cloud service, users can keep track of their equipment. When developing Netbiter EC350 a slot was made for a Bluetooth module to offer clients a wireless reading in future developments. In this project a prototype was made to show how this Bluetooth communication can be implemented. The goal of the project was to create a Bluetooth communication between a Bluetooth sensor and Netbiter EC350. A user interface was made to allow the user to read sensor values. The result of the project shows how a Bluetooth communication can be implemented to read sensors wireless and therefore it fulfills its purpose and goal.

En studie inom upphandling av GPD

The Swedish State Road Administration has since 1992 procured operations and maintenance of state roads on the open market. The procurement has been termed ?Grundpaket Drift?, GPD, and comprises mostly operational measures for road networks.The clients of GPD, SRA regions, have gradually changed the original documentation in order to adapt it to local conditions. This process has gradually led to that some parts of the documentation are creating problems for contractors interested in procuring jobs.This thesis tries to analyze GPD and clarify the differences that may be essential to the procurement process and to facilitate future joint working projects and processing descriptions..

Forsmark 3 ?Ett Framtida Biobränslekraftverk?

Recent turmoil surrounding nuclear power as an energy source, especially since the accidentat Fukushima, has largely contributed to the debate of whether or not nuclear power should beused as an energy source. This study has examined the economic feasibility of replacingForsmark?s 3rd nuclear reactor with a bio fueled power plant, and find out how this could bedone.The power generation that has to be replaced is equal to 1170 MWe. To replace this, 6 largescaleCFB-boilers, each providing over 200 MWe, were necessary. In addition to this, eachboiler required their respective turbine sets, comprising one high-pressure-, and one lowpressureturbine with intermediate reheating capacities.Based on this, a rankine-cycle was modeled using the software EES, to be able to calculatethe total heat required in the power plant.

Självförsörjande elgenerering : Kan Orust bli självförsörjande på förnybar el?

Orust Kretsloppsakademi is a nonprofit organisation, with a goal of annually generate the same amount of electrical energy that is consumed. Orust is an island on the west coast of Sweden, north of Gothenburg. The population of 15 000 reaches 40 000 during summer, due to the large amount of vacationer. The total electricity demand is 174 GWh a year with a maximum power need of 32 MW. This report presents an analysis for the plausibility of their plan and from a power system stability perspective, the effects on the electrical grid.The conclusion is that the restraints for development of power generation from wind, solar and wave generation, are the power systems capability to transfer power, primarily in the transformers of the grid.

Tanken om framtiden - Sociala och kulturella processer i skapandet av mentala bilder

The aim of this work is to gain understanding of how predictions and images of future are created and maintained and how they are changed in society. An interdisciplinary approach to cultural and social aspects is used to examine how collective images about future are created. The distinction between collective images and private images is problematised. The subject matter is extracted from a previous explorative examination about Do It Yourself and OpenSource culture which are concepts of collective learning. That work is described in the foreword.The question ?How is a collective image about the future created?? is central for this paper.The interdisciplinary approach is a cross reference synthesis of philosophies, educational studies, film studies, strategicstudies and future studies.

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