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4390 Uppsatser om Small-scale district heating - Sida 29 av 293

Österåkers folkbiblioteksutveckling under åren 1958 ? 1983

The purpose of this thesis is to describe and analyse the development of the public library in the district of Österåker during a period of 1958-1983. The main goals have been to identify the crucial events in the history of the library within their historical context and to analyse the factors that have been important for the development: financing, location, staffing, stock of books, book-lending level and different activities for children, youngsters and adults. The consideration has been taken to reasons and consequences of these events. The hermeneutic interpretation model of interaction between parts and wholes, between reasons and results is the basic method in this research which leans mainly upon local archives in Österåker. The public library in Österåker was established in 1952 as a fusion of previously existing small libraries: the parish library in Östra Ryd, the Labour Movement?s library and the temperance movement?s library.

Utredning och effektivisering av Gruvöns sekundärvärmesystem på barrsulfatlinjen : En studie med målet att möjliggöra en ökad fjärrvärmeleverans

Fjärrvärme är idag den vanligaste formen av fastighetsuppvärmning i Sverige. Förutom värmeanläggningar som byggts just för ändamålet att leverera fjärrvärme har pappers- och massaindustrin blivit en betydande aktör på marknaden i de orter där industrin finns. BillerudKorsnäs massa- och pappersbruk på Gruvön i Grums kommun levererar fjärrvärme till kommunen och till det intilliggande sågverket. Syftet med projektet är att genom kartläggning av Gruvöns sekundärvärmesystem på barrsulfatlinjen belysa effektiviseringsmöjligheter med en ökad fjärrvärmeleverans som följd.  Målet är att upprätta en simuleringsmodell i programmet Wingems och med hjälp av den se vad dessa effektiviseringsmöjligheter kan leda till i form av ökad fjärrvärmeleverans. Metoden i arbetet har utgått från att kartlägga energiflöden till två vattencisterner på barrsulfatlinjens sekundärvärmesystem. Driftdata för vattenflöden i sekundärvärmesystemet har inhämtats i form av flödesstorlek och temperatur, vilka har legat till grund för en simuleringsmodell i Wingems. Sekundärvärmesystemet på barrsulfatlinjen består av en ljumvatten-cistern, en hetvatten-cistern och ett antal värmeväxlare och kondensorer.Ett av de identifierade problemenen med systemet är att temperaturen i ljumvatten-cistern är högre än den borde.

Gradering av vindkraftslägen i Lerums kommun med hänsyn till infrastruktur och läge

The aim of this master thesis was to find and grade suitable sites for wind turbines in the rural district of Lerum at the reguest of Göteborg Energi. The rural district of Lerum consists of very complicated terrain which was the reason why we picked Lerum.The assignment was achieved by using the software program ArcGIS and its attendant tools. In step 1 an overall analysis was made in order to sort out the least suitable sites. Step 2 consisted of a 3D analysis in ArcScene together with a more precise analysis in ArcMap. As result we found two interesting sites, which met our demands and specific constraints.

Förslag till bebyggelse och park i kvarteret Seminariet i Uppsala

In the urban planning debate of today, two strategies for city development stand out as each other's opposites, urban sprawl and smart growth. This thesis concerns a development project of the latter kind and aims to give an alternative proposal to new buildings and a park in a Swedish city block. The term sprawl is used for new developments on virgin soil on the outskirts of cities leading to a city spreading, while smart growth stand for increased city density through development on re-used land within the city boundaries. The latter are often seen as more sustainable in many levels and are also shown to have positive effects on a number of city functions. At the same time smart growth has negative consequences on other aspects of the city such as public open spaces.

Motivation som anledning till att fortsätta i ungdomsidrotten : En kvantitativ studie av motivation hos ungdomar som deltar i breddidrott och elitidrott

Studies in Sweden have shown that about 80% of all youth in Sweden have participated in organized sport during their upbringing but at the age of 20 only 50% of these continue. There have been several attempts to understand why youth stop participating in sports but few aimed to understand why they continue. The objective of this study was to examine if there is a difference in motivation between youth (in the ages of 16-20 years) who participate in recreational and elite sports. The study was carried out as a quantitative survey where both recreational (n=35) and elite athletes (n=33) particpated. The study used a Sport Motivation Scale questionnaire translated into Swedish.

Vibrationsdämpning av värmepump

Thermia Värme AB is one of the market leading manufactures of heat pumps. In order tomaintain this position, the company wants to improve the vibration characteristics of theirproducts. The aim of this thesis is to develop product design changes that lead to a reductionof vibrations in the heat pump Thermia Diplomat 8.The main cause for vibrations in the system is flow pulsation and mechanical forces inducedby the scroll compressor. Vibration is transmitted through the compressor piping and receivedby the heat exchangers, from where it is further transmitted to the connection points for theradiator and heat source circuits.A number of design changes in order to improve the vibration characteristics have beenevaluated through calculations and practical experiments. The changes have included thecompressor and heat exchanger mountings, the compressor suction and discharge line pipingand also pulsation dampening.The results of the experiments show that the vibration levels in the connections for the heatingand brine circuits can be decreased strikingly through changes in suction and discharge linepiping.

Vilka faktorer har betydelse för ett företags beslut att underkasta sig revision?

Since 1983 all Swedish companies are legally obliged to allow themselves to be audited. Recently the question of whether small companies should be subject to this or not has frequently been discussed. Many find it superfluous and think it ought to be abolished. In England small companies no longer have to be audited. However, in a study by Jill Collis it has been shown that a large number of companies choose to be audited although there is no obligation for them to do so.

?Bara jag blir smal så blir jag lycklig? Livstillfredsställelse, kroppsuppfattning och självkänsla efter Gastric Bypassoperation

I denna studie undersöktes hur 291 individer som genomgått en Gastric Bypass för mer än två år sedan skattade sin psykosociala hälsa. Syftet med studien var att undersöka samband mellan den psykosociala hälsan och hur länge respondenterna hade varit opererade, eventuell viktuppgång samt hur länge i livet respondenterna haft obesitas. Mätinstrumenten som användes var Satisfaction With Life Scale (livstillfredsställelse), Social Physique Anxiety Scale (social kroppsångest) samt Rosenberg Self- Esteem Scale (självkänsla). Resultaten visade att ju längre tid det var sedan patienterna opererades samt ju mer patienterna ökade i vikt, desto lägre skattades den psykosociala hälsan. Vidare skattade de patienter som varit obesa hela livet, högre social kroppsångest jämfört med patienter som rapporterade att de haft perioder i livet som normalviktiga..

Mötesplatser i små tätorter : funktion och gestaltning

This bachelor thesis in Landscape Architecture is about the planning and design of public spaces in small towns in Sweden. My opinion is that the small towns often are overlooked and my determination is to see if that is right. The purpose with this thesis in Landscape Architecture, with focus on a durable society is to find the central public places in small towns and evaluate their function. This thesis has a focus on good design of central public spaces, designed for the inhabitants of the small towns. A small town, which is the focus of this thesis, is defined to have 200-2000 inhabitants. The small towns, which often are built around industries or the railway, have since the nineteen seventies a problem with people leaving them for the cities in the urbanization. Currently there is also the opposite trend with people moving out from the cities, but to live on the country side, not in the small towns.

Underlag till energieffektiviserande åtgärder i nätstationer

Umeå Energi are working towards a goal, that in the year of 2018, they will be completely climate neutral. As a part of this, one target is to reduce their grid losses by 4 % of the 2012 level, which corresponds to an overall reduction of the grid losses of just over 1.7 GWh. In many residential areas, the distribution grid is designed and rated for electric heating as the heating in the houses. As many of the houses later has been converted to other types of heating, their electricity use has decreased and the total power output from many of the secondary substations has decreased significantly. Because of this, many of these stations today are well oversized, which in turn means that the energy losses in these stations are unnecessarily high.In this degree project, 25 secondary substations have been studied, all located in residential areas in and around central Umeå.

SCA Skogs arbetsmetoder för att fastställa nyttan av en väginvestering

The basis of road investments is to minimize the transportation cost. The forest industry wants roundwood to be available during the whole year. One way of determine which road to invest in is to do a cost/benefit calculation. SCA Forest lacks a uniform approach to determine the utility of a road investment. The goal of this report is to describe how the organization works today and find areas of improvement. The data collection was done through interviews.

Sömn hos små barn och deras föräldrar

Background: How small children sleep influence the whole family. Sleeping problems, could influence children physical, mental, emotionally, cognitive and socially. When parents get waked by the children, who wake by themselves in the middle of the night, the parents do not always now what to do. Aim: The aim of this study was how children sleep and how it influence their parents sleep habit. The question formulation was threefold: Firstly.

Psykometriska egenskaper hos Affektiv självskattningsskala, AS-18, för patienter med bipolär sjukdom, typ I och typ II

I syfte att undersöka psykometriska egenskaper hos Affektiv självskattningsskala (AS-18) fyllde 88 patienter med diagnos bipolär typ I (N=46) eller typ II (N=42) i självskattningsskalorna AS-18 och MADRS-S vid två tillfällen med en dags mellanrum. Principalkomponentsanalys för AS-18 genomfördes med extrahering av två komponenter. Items laddade i de delskalor de tillhörde. Intern konsistens mättes med Cronbachs alfa och överensstämmelse med Cohens kappa. Test-retest-reliabiliteten beräknades.

Lönar sig Supply Chain Management för mindre företag?

Purpose - To analyze the relationship between supply chain management maturity, supply chain performance and financial performance in small and medium-sized enterprises (SME:s).Design/methodology/approach - The data comprises 15 SME:s that participated in a local logistic study in Gävleborgs län. The levels of supply chain mature within these firms were based upon an interview study and the financial performance of the firms was then examined using financial reports-based data.Findings -The results of this study indicate that there is a strong relationship between SCM maturity and SC performance in SMEs, some relationships between SCM maturity and financial performance, as well as some relationships between SC performance and financial performance. This means that if firms use maturity indicators in the SCOR areas to improve their processes, they will most likely achieve a positive effect on supply chain performance and probably also on financial performance. The result implies that the supply chain maturities in these firms are higher than expected with no one at the adHoc level.While this study is based on a rather small number of participating firms, it would be valuable to further test the significance of the indicated correlations between SCM maturity and performance in a large-scale survey.Research limitations/Implications - The research is an attempt to understand supply chain maturity and it´s implication on financial performance. Developing supply chain maturity is an opportunity for a company to gain superior performance.

Passivhus ? lönsamhet och komfort

In this essay, we have compared a conventional house to a passive house. The housesshared the same local conditions; they have the same living area and the same layout. Thedifferences between the houses were the different construction solutions for the roof, theouter walls, the floor and the heating system. Both the houses qualify the standards fromBBR and the passive house also lives up to FEBY?s special conditions.The purpose with the essay was to examine if it really is profitable to build small hoses aspassive houses.

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