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519 Uppsatser om Environmentally friendly asphalt - Sida 5 av 35
Social media & marknadsföring
The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.
Utbyggnadsplan för laddinfrastruktur inom Uppsalahem AB:s bostadsområden
The electric car has existed for over a century and producers has tried to commercialize it earlier but has not succeeded. In recent years, however, a change occurred that may be significant for the electric car and it is now to commercialize in the market of passenger cars. The technology has in recent years elaborated as more car manufacturers have started to invest in development in the subject field. This thesis aims to compile an action plan for the development of charging infrastructure for electric vehicles in Uppsalahem ABs residential areas. It is based on a survey of different residential areas and a survey of charging infrastructure.
Utvärdering av ett värmepumpsystems prestanda till en HWC-tvättmaskin : Med fokus på fläktvarvtal och köldmedieflöde
This report was performed in order to evaluate a new technological measure and focuses generally on a heat pump system to a HWC-washing machine. The client is Asko Appliances AB, a company well known for its environmentally friendly products. The goal of this study was to improve the energy efficiency of a washing machine by combining a heat pump device to the heater of the wash water, in order to reduce the energy consumed for heating the water. Besides reducing the energy consumption in heating the water, the washing machine was required to meet low noise and short operating time specifications. For that purpose, nine trials in three test series have been carried out.
Utvecklingsprojekt av förpackning inom livsmedelsindustrin
This report covers the thesis done by mechanical engineering at the engineering program at the University of Halmstad. Student Work Development of packaging in the food industry includes 15 credits and has performed over 20 weeks in spring 2009. The thesis work is a compulsory part of education and aimed at the student must apply the knowledge it has given during training in a project related to reality. Student work has been carried out in cooperation with Hanson & Möhringen AB and the project's main objective was to develop an environmentally friendly packaging to their brand Falk Salt. When salt is one of the world's cheapest commodity was packing all the costs have to be as low as possible.
Vilka faktorer inverkar vid valet av transportföretag? : En fallstudie om företagskunders resonemang och prioriteringar vid köp av transporttjänster och val av transportföretag.
During the last couple of years the focus for many businesses have moved from just being price oriented to include such factors as quality, flexibility, service, delivery precision and environmentally friendliness. The shift in viewpoint arises from the increasingly competition on the market and the hard economic atmosphere. It has become more important to differentiate the company and its products to be able to increase market share. The purpose with this master?s thesis was to get a better understanding on how companies (customer to DHL) are reasoning and prioritizing when choosing Swedish carriers.
Gräsmattans "vara eller icke vara" : En undersökning av den traditionella gräsmattans moderna dilemma
The traditional lawn is believed to be facing a dilemma. On one hand, it is valuable for people because of its esthetical and functional values. On the other hand, the lawn is perceived as a monoculture without biological diversity that hinders the domestic landscape?s flora and fauna. In this graduation-thesis, the private and public lawn?s dilemma of ?to be or not to be?, is examined from these two different perspectives.
Assessment of food retail business sustainability : the case of Konsum Värmland
Public concern and the need of responsible way of doing business have brought forward the issue of sustainability at the forefront of discussion in the last decade. Even though, food retailers are playing an important role in the economy, they are exposed for criticism by media and consumers for any socially and environmentally irresponsible business practices because, the potential environmental and social impacts from their operations are significant. These impacts need to be recognized and properly addressed. The main objective of this study was to assess the sustainable business management of a cooperative food retail business in Sweden, known as Konsum Värmland (KV). The necessary data and information on history and status of KV, and its practical activities concerning the implementation of sustainable development programs as well as the motivation and challenges encountered by KV during the implementation were gathered via reviewing different documents, research papers and press releases; interviewing decision makers and other personnel in KV and other researchers from Swedish University of Agricultural University who have investigated KV.
Energisystem med utnyttjande av restprodukter för gödsling av Salixodling för energiproduktion : studier av kretslopprojektet i Enköping och dess applicering på en kommun i Ryssland.
The purpose of this work is to study a circulation project in Enköping municipality, where the society?s rest products are used to make beneficial products. In Enköping the rest products from waste treatment plants and private sewers are used to fertilize and irrigate Salix plantations that later are harvested and burned at the local combined heating and power plant, ENA Energy AB, to produce electricity and heat. Possibilities to apply this kind of project ona municipality in Russia are also explored.Guryevsk municipality in Kaliningrad region was chosen since there is a need to improve energy systems and reduce emissions to water and air. This municipality strives to become environmentally friendly.
H?LLBARA INTERMODALA TRANSPORTER I EU En studie om EU:s transportpolitiks inflytande p? samverkan mellan transportslag f?r h?llbar mobilitet
The transport sector is one of the biggest pollutants in the European Union. In relation to
transport policies and environmental policies, intermodal transportation solutions are of high
relevance to establish a sustainable transport sector for the future. Intermodality which is
defined as smooth transition between transport modes is a key figure for how modal shares
are divided between the modes of transportation. The aim of this bachelor?s thesis is to
examine the research gap whether policies intended for a specific transport mode affects each
other in relation to EU policies intended for intermodality.
Förbrukningsreduktion : Ett alternativ till gasturbiner som snabb aktiv störningsreserv?
The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.
Solel och solvärme ur LCC-perspektiv för ett passiv-flerbostadshus
This master?s degree project concerns the combination of a multi dwelling passive house with solar energy for the generation of electricity and domestic hot water (DHW). Different alternatives with either solar thermal systems or photovoltaic (PV) systems are compared with two reference alternatives producing DHW from electricity or district heating. The economical comparison uses a life cycle cost (LCC) perspective based on the present value of expenditures for investment, energy and annual operating and maintenance.The energy yields from the solar energy systems were calculated by hand and with simulation software. Calculation and dimensioning of PV systems were carried out with a software called PVSYST.
CMS och UX : tekniker för hur man utformar en god användarupplevelse
The purpouse of this study is to find out how and if a Content Managment System (CMS) can benefit from applied User Experience Design (UX). A work project has been executed where a client wanted the students to create a user friendly CMS for adding content to a global hotel review site. A prototype of a CMS was created based on literature studies about UX and CMS. The prototype of the user friendly CMS was then tested through user tests and interviews with key users. After input from the key users the prototype was changed until the users were satisfied with it..
Skogs- och energibolagens attityd till förnybara drivmedel vid upphandling av transporttjänster i norra Sverige
Sweden's government is dedicated to the goal of having a vehicle fleet that is independent of fossil fuels by 2030. Achieving these goals requires, among other things, new types of fuel that give lower net emissions of carbon dioxide. The present market includes stations offering lowlevel blends of renewable fuels in conventional diesel as well as some stations offering renewable fuels only.
The purpose of this study is to survey purchasers? attitudes to the use renewable fuels in roundwood and bioenergy transport in forest- and energy companies.
The study was based on qualitative interviews through a combination of face-to-face meetings and telephone interviews with each sample group. The total number of respondents was ten (10), consisting of five (5) from forest companies and five (5) from energy companies.
Transport service purchasers were generally positive to renewable fuels and considered these necessary in the future.
OPAC - på Märsta folkbibliotek
The purpose of this Bachelor thesis is to examine how user-friendly the OPAC of the Märsta public library is considered to be.Theoretical basis are HCI and Allwoods definition of usability. Issues are: Is the OPAC suited to its task? Is the OPAC user-friendly? How well does a user accept the OPAC? and What degree of competence is shown by users of the OPAC? The source material consists of six interviews in the form of .avi files. The method I have chosen is qualitative semi-structured interview form. The result is that, based on Carl Martin Allwood?s defini-tion and with exception for the using of help-resources, the usability of Märsta?s library OPAC can be considered less good..
Hållbarhetsaspekter på tillvaratagande av spillvärme i borrhålslager- ur ett företags- och samhällsperspektiv
The objective of this study is to examine the sustainability of recovering industrial wasteheat from several heat sources in a foundry constructed in a plant belonging to ITT Waterand Wastewater in Emmaboda, Sweden. A triple bottom line perspective will be appliedto achieve this objective. The triple bottom line approach takes into account ecologicaland social performance in addition to financial performance. The technology forrecovering the waste heat is a Borehole Thermal Energy Storage (BTES) which is aconstruction consisting of 140 vertical boreholes, 150 meters deep with an internal spaceof four meters.The calculated amount of energy for storage is approximately 3800 MWh annually. Ofthis amount 2500 MWh are expected to be utilized, while storage losses accounts for theremaining part.