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1583 Uppsatser om Temperature efficiency - Sida 62 av 106
SwiftSense Wardrobe
Addressing increasing global environmental problems requires greater resource efficiency, and one way of working towards this is through industrial symbiosis. Industrial symbiosis means that companies collaborate through sharing of resources for collective benefits. The documented benefits of working with industrial symbiosis indicate that there is potential for companies to operate commercially with facilitation of industrial symbiosis. An interesting company to study within this context is Econova. Econova operates within the recycling and gardening industry and has been identified as a possible catalyst for industrial symbiosis.
Geografisk prioritering av CTI-utrustad virkestransportkapacitet
Previous studies of central tire inflation (CTI) in truck transport of roundwood have shown potential benefits to include more even wood flow and reduced road damage. The greatest benefits are found to be during periods of low bearing capacity such as spring thaw. No previous studies have examined geographical variations in the potential benefit of CTI-equipped trucks. The aim of the study was to develop and use a simple method for geographically prioritizing the use of CTI-equipped trucks within a forest company´s sector of activity.The host company for the study was Holmen Skog. The area studied consisted of Holmen Skog?s entire sector of activity extending from the province of Västerbotten to the province of Småland.
DC/DC-omvandlarplattform med DPA-switch för telekomprodukter
In recent years, the penetration of new players on the telecom market hasdrastically increased the work pace, affecting both design and production. Inthis report the technical and economical potential of a DC/DC converterplatform is investigated, in order to shorten the time of the design process.This is done in comparison with the present discrete type designs. PowerIntegrations offers a product, the DPA-Switch?, enabling this.By developing a wide DC/DC converter platform based on the DPA-Switch?,many advantages are gained. The component count is decreased by up to48 % and the yield increases by up to 2.9 % which in all yields a costreduction by up to 43 % or ?390 000 for 100 000 manufactured units.
Analys och förbättring av en mätenhet för laddning av elfordon
Reducing the CO2-pollution, resulting from the combustion of fossil coal for energyproduction, is important to affect environmental changes. One way to achieve a reductionis to use the oxy-fuel technology. The technology uses O2 and re-circulated flue gasduring the combustion which results in a flue gas mainly consisting of CO2. The flue gascould then be compressed and stored without environmental effects. A problem thatfollows from the compression is the risk of acidification in sensitive parts of the process.Acidification can occur because of reactions following from the contact of condensedwater and sulphur- and nitrogen-oxides which are also present in the flue gas.This report compiles and evaluates the basis of a scientific unit with the purpose ofexploring the possibilities of extracting impurities of SOx and NOx from the flue gases.The dimensions of the unit are based on basic conditions, defined for an existing oxy-fuelprocess at Chalmers, and on the results of computer modelling.
"EFFEKTIVARE PLANPROCESSER - BOSTÄDER PÅ BEKOSTNAD AV MEDBORGARINFLYTANDE?" : - Förändringar i PBL ur en demokratiaspekt
The aim of this thesis is to examine whether law reforms in the detailed planning process can be an aspect that gets in conflict with the citizens rights to participate in the Swedish planning through dialogue, and how five chosen municipalities are working with citizen participation. To be able to answer the aim of the thesis a literature study and five semi-structured interviews was performed in purpose to get wide-ranging information from municipal officials working with detailed planning handling. Law changes that aims to make the detailed planning process more efficient has been implemented partly to satisfy the needs of dwellings since the detailed planning process among master builders seems to be slow and inefficient, which to the them means higher costs. The requirement on having a detailed planning program was taken away when the new planning law was adopted year 2011. The planning program was including a moment of citizen dialogue. The case studied municipalities have not been affected in this law change arguing that it?s still possible to bring a program if needed.
Bibliotek i kristider: Perioden 1930-1945
In 1930 a new library reform came into force, which in reality was the beginning of the modern Swedish library. The purpose of this reform was to take measures to promote efficiency, for example to increase library co-operation. The Government grants were at the same time raised considerably. However, as early as in 1930, but especially the following year, the depression hit Sweden. The Government reduced the grants until the first half of 1936.
Biogas : En systemanalys av Solna Stads matavfallsprocess
Global warming is a huge issue that humans have contributed to through over-exploitation of natural resources and extensive usage of fossil fuels. Now more than ever, we need to embrace a recycle thinking and reuse our waste, for example through producing biogas from our food waste. The purpose of this report was therefore to identify the energy usage and emissions resulting from the biogas chain which spans from Solna Stad to Uppsala Vatten. Furthermore, potential efficiency improvements were to be identified and proposed. This report focused mainly on the first part of the biogas chain that includes the collection of the food waste and the reloading process.
Skapandet av ett byggnadsfysikaliskt detaljbibliotek åt byggnadskonstruktörer : fokus på fukt- och värmetillstånd i köldbryggor
Det konstrueras i stor utsträckning bristfälliga detaljlösningar på byggnader i dagsläget. Den bärande stommen i konstruktionen prioriteras ofta medan det inte ägnas lika mycket fokus åt att tillgodose de byggnadsfysiska aspekterna. Anledningen till de bristfälliga detaljerna är även att den som utför arbetet saknar rätt kunskap och tid. För att skapa en förbättring behövs ett hjälpmedel!Kunskap och erfarenhet om hur bra detaljer skapas finns redan i företag, svårigheten är dock att sprida kunskapen till de som är i behov av den.Målet med denna rapport är att skapa en metodik som blir startskottet för ett omfattande arbete kring framtagandet av ett detaljbibliotek, vars syfte är att sprida byggnadsfysiska kunskaper inom företaget och inspirera konstruktörer till att konstruera bra detaljlösningar. Biblioteket ska innehålla byggnadsfysiskt utredda detaljlösningar som analyserats enligt den utarbetade metodiken.
Omvårdnad av nyförlöst kvinna som har infektion av Streptococcus pyogenes : En litteraturstudie
Bakground: Puerperal fever caused by group A Streptococcus is in a global context seen as a common cause of death in childbirth.Aim: To examine the consequences of group A streptococcus infections in women postpartum and to see what a nurse can do to stop the infection with adequate nursing interventions.Method: This is a review built on 15 articles. These articles were read in full and audited with a suitable template.Result: Women postpartum has 20 times higher risk to get group A stretococcus infection as compared to non pregnant. The consequences of Group A Streptococcus infection can lead to high fever, abscesses around the uterus, sepsis, acute respiratory distress syndrome (ARDS), hysterectomy and death. Patients who share room with infected patients carries an increased risk to be infected. Curtains between patient beds can be colonized by Group A Streptococcus.
Vet alla vart vi är på väg? : -Studie av internkommunikation i en komplex organisation
Internal communication exists in all organizations and is ongoing. It is of great importanceto communicate effectively when deficiencies can have serious consequences. The tsunamithat swept over South East Asia's coast in 2004 is indicative of this. At that time the consequenceswere loss of efficiency and productivity of businesses, health care, police and themilitary. All because of the lack of information.Employees in an organization take many decisions that affect the entire organization.
Bakgrundskontroller i svenskt näringsliv - En studie av kontrollförfarandet vid rekrytering till ledningsgrupper
Changes in the labour market combined with an increased media coverage of managers, have resulted in the rise of a new human due diligence industry. The use of background checks has lately become increasingly popular on the Swedish market and many companies use it as an evaluation tool when recruiting. This study investigates differences in the background screening procedure for recruitment to executive management positions and lower level positions. It also aims to answer why background checks are conducted, using a cultural and a functional perspective. The report takes an abductive approach and data has primarily been gathered through a survey directed to large Swedish companies.
Privatisering av folkbibliotek skildrat i politiska dokument under 1990-talet
This masters thesis is a study of official political documents in order to discuss privatisation and the Swedish public libraries. In the 1990s public libraries became placed on contractors, and that was said to be one form of privatisation. The main issue for this study concerns driving forces and obstacles for privatisation of public libraries. Another issue concerns advantages and risks. We will also discuss how the future of public libraries will be in this context.
Utvärdering och framtagande av åtgärdsförslag för de mindre avloppsreningsanläggningarna i Laholms kommun : En studie av fem avloppsreningsanläggningar upp till 500 pe
The aim of this project was to describe and to evaluate five small sewage treatment plants in the municipality of Laholm, Sweden, in order to investigate the treatment efficiency and to evaluate if effluents comply with discharge permits. The treatment systems were designed to treat effluents from 90 to 500 population equivalents. A report on the design and the present state of each sewage treatment plant has been made. This was made based upon previous documentation on water quality and by new sampling campaign as there were only a few previous measurements. Data has been evaluated and remedial actions proposed for those treatment plants that don?t fulfill discharge permits.
Beräkning av värmeenergiförluster i flerbostadshus genom analys av den totala fjärrvärmeenergianvändningen :
This thesis has been carried out on behalf of IV Produkt AB and intends to set an average ratio of thermal energy losses in apartment buildings that were built during the 1960-1990. This shall be derived by analyzing the total district energy consumption that has been divided into three parts: heat energy losses (the actual heating requirements), the heating of domestic hot water and heating energy consumption for the controlled ventilation.Three different residential areas that were built during the years 1962-1966 and one that was built in 1993 has been analyzed. All residential areas are located in Växjö urban and contains between four and six apartment buildings.The analyzed objects have a mechanical exhaust ventilation systems and district heating as the heating method. No own laboratory work or experiments have been done in this thesis, the calculations have been done on the basis of parameters from VEAB, interviews with property managers, and literature studies. By calculations, we have got a result that is reported in Chapter 6.
Processkartläggning : Det nödvändiga förarbetet inför implementering av ett affärssystem
During the last decades the local business as well as the multinational organization hasexperienced prominent changes in the technical field. The requirements for reaching newmarkets and achieving higher efficiency in daily work have risen to a whole new level. Totake advantage of the possibilities of IT the user has to be aware of the company?s businessactivities, what shortcomings and chances of development exist today. This is what makes itinteresting to depict the current situation of the company?s business.