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1230 Uppsatser om Fuel consumption - Sida 52 av 82

Kv. Tvättstugan, ett flerbostadshus med massiv trästomme : Ett examensarbete om akustik- och brandkrav samt en jämförelse av energi- och fuktaspekter

Title: Kvarteret Tvättstugan, an apartment building with massive wood construction. A thesis about acoustic and fire requirements and a comparison of energy and moisture aspects. Earlier restrictions in the Swedish legislation have resulted that only a small percentage of the apartment buildings that have been built are designed with a massive wood construction. It has been allowed to build unrestricted with wood since 1994 as long as the function of requirements are fulfilled. This change in the rules together with the great environmental benefits of wood has led to that more companies choose to build apartment buildings with wood. One of these companies is Folkhem Production AB.

Underlag för solcellsproducerad el i Stockholm : Potential och klimatpåverkan

The City of Stockholm has decided to invest in renewable energy and especially in photovoltaics. The objective of this thesis is to investigate the photovoltaic potential on roof areas that the city possesses and to further investigate some buildings of the Property Management Department. The thesis also compares some existing photovoltaic plants with the solar irradiance map which shows available roof area on each building in Stockholm. The report ends with a literature study about the climate impact and greenhouse gas emissions of photovoltaic.The total available roof area suitable for photovoltaic plants is estimated to 700 000 m2, with a potential electricity production of 110 GWh per year. This corresponds to 17 % of the City of Stockholm?s yearly electricity consumption.

Energieffektivisering - Laholms kyrkliga samfällighets kulturhistoriska byggnader

Energy efficiency is today more important than ever, mainly due to the high energy prices and the approaching climate changes. Heating of buildings is an essential area within energy efficiency. Many buildings are old and were built at a time when the energy prices were low and the term ?energy efficiency? was unheard of. By applying today?s broad range of energy saving actions on these old, and thereby often, heating ineffective buildings, this area has a large potential in reducing energy consumption and costs.Churches and chapels are generally old buildings with, in many cases, ineffective heating systems and therefore consume much more energy than needed.

Biogas till kraftvärme på Wapnö : en projektanalys utifrån ett företagsekonomiskt perspektiv

Biogas is a gaseous fuel, rich in methane, produced through a biological route in an anaerobic digester. A gas engine generates combined heat and power, which can be used at the farm to reduce energy cost. The process also generates a digestate, with better utilization of nutrient compared to cattle manure. The aim of this study is to analyze the profitability of a farm-scale biogas plant for combined heat and power (CHP) at Wapnö. Wapnö is an agriculture company located in the southern part of Sweden.

Centraliserad decentralisering? En studie av Marrakechprocessen och dess relation till global governance

The current debate regarding organizational strategies for sustainabledevelopment is influenced by the theory of global governance. Decentralizedstructures of the global society are taken to use in the realization of a sustainabledevelopment. New roles of transnational networks and partnerships raisesquestions of the ability of global governance to co-ordinate and implement longtermsolutions without assistance from centralized and hierarchic structures basedon government. The aim for this thesis is to illustrate the current conditions forwell-functioning networks of sustainable development and examine therelationship between global governance and government. Issues of participation,decision making and compliance are examined by a case study of the Marrakechprocess, a global process to support the implementation of sustainableconsumption and production.

Vision Nollenergihus : Energiförsörjning av passivhus med sol- och vindenergi

Climate change is the modern society?s common issue. The developed countries areconsuming more than what is sustainable, and the climate change due to the use offossil fuels can be seen clearly. EU has specified goals, in order to stop furtherdamage, which demand that every member state have to reduce its energyconsumption by 20 % before 2020 and 50 % before 2050, relative to 1995.The Swedish government uses a number of instruments to encourage reduction in theusage of energy, but every individual has to contribute to reach the goals.With increasing energy price the cost of living is going up. A lot of people are lookingfor ways to save energy and not be affected as much by the increasing price.Investments for insulation, replacement of windows and replacing old heating systemfor a new efficient heat pump is getting more and more common.This thesis is about investigating the possibilities in becoming independent from buyingenergy for households.

Beräkning av värmeförluster och energieffektivisering av elbussar

The ?civilized? world is in need of fossil fuel in order to function. Hybricon AB is a company in Umeå that is developing a technology that hopefully can reduce parts of this need. They are currently testing their two electrical busses (with Hybrid backup) in city traffic on the roads of Umeå in cooperation with the county of Umeå.                               The busses are originally diesel-busses, but the diesel motor has been replaced with two electrical hub-motors with a power of 145 kW each that are powered by batteries.The batteries are charged at the end station after each route. In case the batteries should run low on capacity during driving, they can be recharged by the so called genset.

Energieffektivisering av skolbyggnad från 60-talet : Studie av Hållsta skola i Eskilstuna

In June 2006 the Swedish government decided that the use of energy in buildings should be reduced by 20 percent until 2020, compared to the level of energy used in 1995. To contribute to this goal, the real estate company ?Eskilstuna Kommunfastigheter AB?, set up own goals for their buildings. In 2009, the goal for schools was to have a maximum energy use of 118 kWh/m2year for heating and hot water.The school ?Hållsta skola?, just south of Eskilstuna, exceeds the limit since it used 270 kWh in 2008.

Kriterier för säkra betaltjänster på nätet

This report has a purpose to identify the payment methods available for e-commerce, tosee if they fulfill certain requirements. By investigating thirty of the most popular webshops, a few primary services have been found and revised. Security requirements fore-payment systems include authentication, non-repudiation, integrity and confidentiality.Other requirements considered to be important are usability, flexibility, affordability,reliability, availability, speed of transaction and interoperability. Advantages and disadvantageshave been identified to see if the services fulfill the requirements. Also surveysof consumer payment habits have been investigated to identify the factors of decisive importanceto the usage of payment services.

Studie av värmeflöden i befintligt bostadsbestånd : Utvärdering av energieffektiva besparingsåtgärder

The purpose of this master thesis is to investigate different types of measures for making buildings more energy efficient and to estimate their profitability. The calculations were performed with the building simulation program VIP+ and the evaluation of the profitability with the life cycle cost method. Furthermore, it was examined how losses in the distribution of secondary systems of district heating can be avoided. Options to replace district heating with a local district heating system based on bio-energy have been investigated. The possibilities of achieving more efficient thermal energy consumption and production for the chosen estate were also examined.The object of the study has been a residential estate with 133 detached houses in Uppsala, built in 1974.

Och då kommer jag osökt in på det här med alkohol En pilotstudie om hur distriktssköterskor använder AUDIT

Background: The district nurses profession has traditionally been health promotion. In order to find patients with excessive alcohol intake, district nurses use AUDIT. Research shows that health professionals find it difficult to face alcohol abusers in primary care. AIM: The aim is to describe how district nurses work with AUDIT. Method: Semi-structured interviews with six informants were carried out.

Energi och klimatanalys O-huset på Campus i Halmstad

AbstractThe indoor environment affects the human performance. Noise pollution, poor lightning and coloring are some of the factors that affect our work performance. The human is also affected by the air change and temperature, these factors are in most buildings possible to adjust and through this make economic savings. To find out about the indoor environment in the O-building a questionnaire was handed out, measurements/surveys and an interview was also made. 108 questionnaires where handed out to employees and students.

Country of origin - consumers?perception at the point of purchase of meat : a means-end chain analysis

Focus of this study was on the underlying values behind consumers buying motives at the point of purchase of meat products in Sweden. Meat consumption in Sweden has increased and in 2012, almost 50% of all meat consumed was imported (SJV, 2013). This is the case despite of the fact that consumers frequently state the importance of Swedish country of origin on the meat products they purchase (www, LRF, 2, 2006). A rising public awareness about health, environmental issues, animal welfare and food safety coupled to meat consumption and meat production is scrutinized both from media and consumers. Due to rising concerns of production-methods of meat, consumers wants to make informed purchasing decisions of the meat they purchase (BEUC, 2013).

Metoder för mätning och simulering av bränsle förbrukning och emissioner från tunga fordon

Vägverket och Energimyndigheten har ombett AVL MTC att undersöka metoderför att mäta och simulera bränsleförbrukning och utsläpp för tunga fordonuttryckt i gram per kilometer (avstånds specifikt)AVL MTC publicerade år 2000 en rapport som visade en mycket god korrelationmellan statiska motor körcykler körda på motordynamometer och som sedansimuleras på en chassidynamometer för tunga fordon [15]. Rapporten visadeäven att korrelationen mellan en transientakörcykler som körts både påmotordynamometer och sedan simuleras på en chassidynamometer inte varlika god. Tester som utförs på en motordynamometer är mycket mer direktverkande på testobjektet. När motorn är monterad i ett fordon som sedantestats på en chassidynamometer kommer den att fungera som ett merdynamiskt system, tackvare exempelvis påverkan av drivlinan tillsammans medväxellåda och däck. Även tester på väg som utförts på AVL MTC visar att vissatunga motorer förbrukar mer bränsle och släpper ut mer emissioner när de ärmonterad i tunga fordon, som körs under verkliga körförhållanden, jämfört medmotorns certifieringsprovningsresultat.

Kolbalansen vid olika skötselstrategier för skogen på Tagels fastighet.

Since the 19th century the concentration of CO2 in the atmosphere hasincreased by 40 percent as an effect of the use of fossil energy sources.Increased concentration of CO2 will likely lead to increased temperature,changes in precipitation, rising sea level and increased frequency of extremeweather like storm events. A step to reduce emissions of CO2 and mitigateclimate change, for the property of Tagel, can be to adopt new silviculturalstrategies and analyse which is the most effective. As a result of that, threescenarios was produced, business-as-usual (BAU), increased set aside landand energy. An introduction of windpower at Tagels estate (property) andeffects on carbon balance was also examined. By using the Heureka systemand LCA-analysis in this study, it showed that the scenario of increased setaside land was the most efficient way to reduce carbon dioxide (CO2)emissions for the analysed period of 100 years.

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