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851 Uppsatser om Heat recovery - Sida 33 av 57
Design and evaluation of an AGV-system for Tetra Pack in Lund using simulation
This examination work is the final work in our education to become a Bachelor of Science inMechanical Engineering by the University of Lund.The main purpose with this work has been to develop a new effective material handling system for TPPM AB in Lund since the existing system starts to become out of date. The future system that is going to be installed shall have the capacity to support all machines with unit-, semi- and finished goods during full production. The work has also included studying the possibilities to change the material flow in a positive way between the storage and the production when one is using existing buildings.During our work we have been used a simulation program called AutoMod, performing company visits, interviews and reviewed internal and external information to create a picture of what the best conclusion can be. During the work we have contacted five suppliers to receive system solutions and quotatioris. The suppliers, which have been contacted, are Swisslog, Moving, Rocia, Christensen & Hansen and ABB.
GIS-program för ruttplanering. En studie av nyttjandet av GIS-program för ruttplanering inom tekniska förvaltningar bland kommunder i västra Sverige
This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.
Utveckling av styrning till solföljande MaReCo-hybrid i Hammarby Sjöstad
Turning solar collectors, heliostats, is certainly not a new idea but has been explored for at least two decades. Projects on this subject have resulted in more or less realistic constructions, in a commercial point of view. Far too often the technical goals have had higher priority than the economical, which has resulted in a few constructions having the ability to compete with conventional, fix solar collectors. The economical issues have been given high priority in this project, without decreasing the demands on reliability. The system has been given the following mechanical and electronical properties: One-axis movement, fix heat carrying fluid system, microcomputer controlled movement and automatic protection from overheating.
Konfusion hos äldre : en litteraturstudie av patienters upplevelser i konfusion och sjuksköterskans omvårdnadsåtgärder vid tillståndet
Confusion can be a life threatening condition that is often missed by the nurses, thus it occurs in the same range as pain, fever or infections. Aim: The aim of this study was to describe the phenomenon of confusion among elderly patients, in order to establish a wider understanding of the patient's nursing needs. Method: Literature study based on scientific material. Results: The result showed the patient's ability to recollect and reconstruct episodes of confusion. During the confusion the stories contained a wide variety of experiences, such as threat, fear, suspicion, chaos and order, unreal experiences, a need to escape and a bad sleep.
Teknik för biogasanvändning
This thesis is made by Carl Persson and Alejandro Saavedra for Gryaab. Gryaab is Gothenburg?s water processing plant and produces about 60 GWh biogas annually with a flow around 1150 Nm3/h. Gryaab wants to research their possibilities to become independent with electrical energy and the possibilities to enrich, upgrade biogas. The use of methane rich gases like biogas and natural gas is today low in Sweden compared to major parts of the world.
Sjuksköterskors skattning av patienters postoperativa smärta - en litteraturstudie
Background: Patients postoperative pain is often underestimated. Untreated or undertreated pain decreases the chance of optimal recovery after surgery. Pain assessment is an important factor of efficient pain relief. Aim: The aim of the literature study was to describe factors of importance for nurses´ assessment of postoperative pain in patients. Method: A literature study was done where qualitative and one quantitative article was reviewed.
Kvinnors upplevelser och hantering av utbrändhet
The aim of this essay is to investigate what is burnout and how women who are affected by it manage their condition. Furthermore, we have investigated stigma and whether or not those affected by burnout are in turn stigmatised.A qualitative approach has been used to achieve our aims with this project. To support our analysis we have interviewed ten women who all have been diagnosed with fatigue syndrome along with studying relevant literature. The main theories used in this investigation are the symbolic interaktionism by G.H Mead, the term stigma by Erving Goffman and different theories on coping.The results show that the majority of women in the study had suffered from burnout due to work related stress and changes in their working environment. How they coped with and recovered from the condition depended on their own activity and how it related to their own support system.
Hur lokal bioenergi kan bidra till att Uppsala kommun når klimatmålet 2050
The purpose of this thesis was to examine how locally produced bioenergy may contribute to meet the climate target year 2050 in the municipality of Uppsala. The
goal of reduced GHG-emissions from current 6,8 ton CO2-equivalents to 0,5 ton CO2-equivalents per capita and year, year 2050 is based on avoiding harmful penalties
of an increased level of GHG in the atmosphere. By estimating available biomass in the county together with examining future technologies and emission factors for the substrates used, four possible future scenarios has been developed focusing either on electricity generation or production of biofuels. GHG-emissions of year 2050 have been calculated using the software LEAP.
The conclusion is that bioenergy, depending on how it is integrated in the energy system, may reduce greenhouse gas emissions between 0.6 ton CO2-equivalents and 1.4 ton CO2-equivalents per capita or 12% to 25% compared to 5.5 ton CO2-equivalents in the reference scenario 2050. The greatest reduction is obtained if biofuels are produced in combination with energy efficient heat requirements in
buildings..
Lärande för framgång : ? En fallstudie i hur fo?retag kan la?ra sig av de processer som fo?ljer av kundmissno?je orsakat av reklam
Da? konsumenter idag a?r mer bena?gna att pa?tala brister i reklam, a?r det av intresse fo?r fo?retaget bakom den aktuella reklamen att ha?va missno?jet samt att skapa en la?ngsiktig lo?sning som fo?rebygger att missno?je a?terkommer. Syftet med denna uppsats a?r att redogo?ra fo?r hur fo?retag, med Top Toy som exempel, kan arbeta fo?r att mildra och ha?va det missno?je som ha?rro?r fra?n reklamkampanjer, samt hur fo?retag kan arbeta fo?r att la?ra sig av denna process. Detta underso?ks genom en fallstudie av leksaksfo?retaget Top Toy, som under en fyraa?rsperiod mottog klagoma?l pa? sina ko?nsstereotypa leksakskataloger och successivt arbetade fo?r att na? en lo?sning som kunde eliminera missno?jet.
INDUSTRIELLT EKOLOGISK STADSODLING : EN KVALITATIV STUDIE SOM UNDERLAG FÖR EN STADSODLINGSREVOLUTION I STOCKHOLM
Rooted in Industrial Ecology (IE) theory, this report evaluates how urban agricultural concepts and techniques, can contribute to improved ecological sustainability within the inner city boundaries of Stockholm. An overarching literary study as well as an interview was carried out, resulting in a qualitative analysis followed by suggestions for practical implementations. A substantial convergence was found between the eco-restructuring objectives of IE and the principal motives for urban agriculture. Consequently, eco-restructuring objectives are found in varying degrees in the presented urban agricultural techniques. Industrial symbioses, permaculture and combinations of urban agricultural techniques are tools which are capable of corresponding adequately to the diversity of urban settings.
Geoenergilösning för DN-huset
In this thesis proposals for different designs of a borehole thermal energy storage (BTES) have been developed for the building DN-huset in Stockholm, Sweden. To build a BTES results in savings in energy costs by approximately 44 %, i.e. 2 million Swedish crowns annually. Furthermore, a BTES would reduce the annual environmental impact with roughly 75-157 tonnes of CO2 equivalents per year, depending on how the electricity consumption?s environmental impact is estimated.
Omvårdnad av kanin på klinik : en litteraturstudie
Pet rabbits are increasing in popularity and the owners want the same treatment for them as they would want for a dog or a cat. However, the knowledge among clinical staff about these small animals is not always up to date. The aim of this paper is to highlight the needs of the pet rabbit and how these can be met regarding veterinary nursing.
Pet rabbits are different from dogs and cats in several ways and their needs as patients differ as well. Rabbits are herbivorous prey animals. To avoid predators, they are very reluctant to show any sign of weakness for as long as they can.
Påverkan av skogsbrand på litiska arkeologiska fynd ? experimentell simulering av brand
This is a paper about the effects from smoldering fire on lithic objects from an archaeological view.
The introduction gives the background to this paper, a short orientation to forest wildfires and why the work is limited to: flint, quartz, quartzite and slate. Material and methods describes the stone materials and the setup that was used in the temperature logged tests with three replications for each type of material. The fuel in the burnings was peat on a bottom of sand. Flint showed a more drastic effect from heat compared with the other materials. Slate seems to have greater tendencies to change to darker colour and luster at lower temperatures than the other materials.
Patienters upplevelser av att leva med venösa bensår utifrån ett fysiskt, psykiskt och socialt perspektiv - En litteraturstudie
The purpose of this study was to describe patients? experiences when living with a venous leg ulcer in physical, psychological and social perspectives. The articles used to describe this condition were found in the databases: PubMed and Cinahl. Ten articles were included in the result: five with a qualitative approach, two with a quantitative approach and three with both qualitative and quantitative approaches. The results were presented through three headings: physical, psychological and social.
Dagbok över intensivvårdstiden : Patientens upplevelse
Vårdas på en intensivvårdsavdelning och vara allvarligt sjuk är för många en obehaglig upplevelse. Övervakning och behandling av vitala funktioner sker dygnet runt i en miljö som är främmande för patienten. Många patienter har på grund av läkemedel och behandling svårt att kommunicera, vilket kan leda till minnesförlust och hallucinationer. Sjuksköterskan kan som en del i omvårdnaden skriva en dagbok över vårdtiden. Syftet med litteraturstudien var att belysa patientens upplevelser av att läsa sin dagbok över vårdtiden på intensivvårdavdelningen och hur det kan påverka patientens återhämtning.