Sökresultat:
304 Uppsatser om Adding insulation - Sida 19 av 21
Kontinuerlig temperaturmätning i bädden på gratevagnar
Luossavaara-Kiirunavaara Aktiebolag (LKAB) är en gruvdriftskoncern med järnmalmsbrytning som huvudsaklig verksamhet. En av produkterna tas fram genom att raffinera järnmalm till pellets vilket är en efterfrågad produkt vid ståltillverkning. Vid sintring av råkulor till pellets är temperaturen väsentlig för att få så hög oxidation som möjligt av magnetit till hematit och för att få rätt fasthet. För att reglera värmen bör temperaturen mätas bland råkulorna eftersom det är kulornas temperatur som är det viktiga. Projektet går ut på att undersöka möjligheterna att mäta temperatur bland råkulor på gratevagnar som åker genom en pelletsugn med ett permanent mätsystem. Här ställs höga krav på mätsystemet på grund av miljö, portabilitet och drifttid.Miljöanalyser gjordes för att ta reda på vilken påfrestning ett mätsystem bör klara av. Förslag om placering av mätutrustning framtogs genom kartläggning av miljön.
CFD simulering av kallras : Undersökning av temperatur- och luftbeteende intill höga glasfasader och i vistelsezon med golvvärme som en värmekälla
Glass has sophisticated front properties and are used as facades in high buildings. During cold periods, these glass facades could cause thermal discomfort, due to cold downdraught. Cold downdraught can be countered by placing heaters under glass surfaces. Nowadays technology offers highly insulating windows, which is why there is an interest to investigate the indoor climate with only underfloor heating. The research in this area is limited, and few empirical methods are available.
Sinnlig stimulans i vaken vila : en studie av växter i en restorativ trädgård
Den här studien berör några av de miljöpsykologiska grunderna i Alnarps Rehabiliteringsträdgårds uppbyggnad. Den ger förslag på hur karaktären rofylld kan förstärkas och hur säsongen kan förlängas i den restorativa delen av välkomstträdgården med växter som tilltalar flera av våra sinnen.
Deltagarna som kommer till trädgården har i regel stressrelaterade åkommor såsom utmattningssyndrom och har varit sjukskrivna en längre tid. De är ofta mycket känsliga på grund av fysisk och psykisk utmattning.
Studier visar att deltagarna har behov av en kravlös miljö där de kan få vara ostörda.
Ny förbättrad layout vid Stena Stål AB : Kartläggning av plock- och tillverkningsprocesser samt personalens arbetssituation i dagsläget.
With today`s business world, it is very important to deliver the right product with right quality and quantity at the right time. By ensuring that the staff are happy and have the opportunity to work in a workplace with good structure, the company will be able to reach these parameters and at the same time maximize the efficiency.The project has been carried out at Stena Stål AB in Värnamo. The company's main task is to cut, store and deliver production steel and tool steel to processing companies in the surrounding region. Stena Stål AB in Värnamo is one of total 21 companies in the company group Stena Stål. Stena Stål is a part of the Stena corporate group which owns a total of eight different company groups that are spread in about 250 different locations in 14 countries.The purpose of this report is to give Stena Stål AB in Värnamo suggestions on how to design a new facility for tool steel.
Erfarenhetsåterföring i praktiken : En studie vid Jernhusen AB
This examination has been made in cooperation with Jernhusen which is an estate company owned by the government, with estates along the railways in Sweden. This assignment is to help Jernhusens business area Projektfastigheter with their experience feedback, which is to-day almost absent. Business area Projektfastigheter has the task of supporting Jernhusens three other business areas with skills and resources for the estate projects that Jernhusen runs. Jernhusen must become stronger with the collecting of experiences and as a business because of the liberalization of the railways, which leads to a more competitive market. A tool for this is successful experience feedback.The concept of experience feedback is to gain experience across a variety of cases, where individuals and/or groups can chose situations with relevant similarities and differences with current case.
Energieffektivisering av Åhlénshuset i Umeå : Utredning av åtgärder för ventilation, värme och kyla
Sweden is a country that has made some progress in developing energy efficient solutions. The problem in Sweden is that many houses and apartment buildings are old and have inefficient ventilation- and heating systems. This energy is lost when systems are inefficient, which then results in huge economic costs. Luckily, more and more people are becoming aware of this, which means that Sweden is on track to become even better within energy efficiency.Energy use for the housing- and service sector amounts to 166 TWh of total use at 616 TWh. Without distribution and conversion losses, these figures show that the housing- and service sector accounts for almost 40 % of the country's total energy consumption.
Systemlösningar för plus- eller passivhus : En studie med syftet att lösa energibehovet för ett specifikt hus.
The purpose of the house which is the basis of this report is to be able present itself on the market as a relatively cheap and at the same time a climate friendly choice. The house is supposed to be able to be built anywhere in Sweden and the rest of Scandinavia in a short period of time. This puts demand on what kind of heating system the house can have, since not all places have the geographic advantage of being able to use geothermal or district heating. Therefore the heating system choices will only include those that are not limited by their geographic location. The house will be built in modules which only require the groundwork to be done before the house can be erected. In this report "System solutions for plus or passive-housing" a comprehensive literature search has been conducted as well as a number of calculations.
Det berättande spelet : En studie om berättande datorspel och dess filmatiseringar
A paranoid and shameful reading of Inger Christensens novel Azorno.The contagious feelings of paranoia and shame played a vital part in my first reading of the novel Azorno, written by the Danish poet Inger Christensen. In this essay, I?m letting those emotions direct the ?understanding? and analysis of the novel. In earlier research the focus has been to comprehend what the novel ?really is about?, and even though it has been mentioned that the form probably is a way to make the reader a visible constructer of the novel?s ?meaning? the understanding has never been created by the affects that occurs during the reading.
Olssons trädgård : ett examensarbete som handlar om att lyssna när en plats berättar
This master thesis is about a place that has a story to tell. Olsson?s garden came about when Mr Carl Oscar Olsson acquired a piece of land in Landalabergen in the beginning of the 1930's and at that time he started his industrious work of uniting much of Sweden's flora in his garden. Since the very beginning Olsson's garden has played a lot of different rolls in a variety of situations and meant different things for different people.
Today one can find traces from Mr Olsson's life and deeds in the garden.
Utsidan räknas : ?En materialstudie
Judged by appearance. This is the conclusion of research made on shopper behavior that revealed that consumers tend to go by their instinct when evaluating vacuum cleaners in a purchasing situation. Many buy the first vacuum cleaner they interact with and few buy pre-planned brands. Almost none even turn the machine on before taking a purchase decision.Electrolux Floor Care Europe has their factory for vacuum cleaners in Hungary. Increased competition from China makes it harder to "only" produce vacuum cleaners with good performance.
Kemisk stabilisering av gruvavfall från Ljusnarsbergsfältet med mesakalk och avloppsslam
Mine waste from Ljusnarsbergsfältet in Kopparberg, Sweden, is considered to constitute a great risk for human health and the surrounding environment. Some of the waste rock consists of sulphide minerals. When sulphide minerals come into contact with dissolved oxygen and precipitation, oxidation may occur resulting in acid mine drainage (AMD) and the release of heavy metals. The purpose of this study has been to characterise the waste material and try to chemically stabilize the waste rock with a mixture of sewage sludge and calcium carbonate. The drawback of using organic matter is the risk that dissolved organic matter can act as a complexing agent for heavy metals and in this way increase their mobility.
Leanorienterad flödesutveckling : av kärntillverkningen på Affärsenhet Cylinder ASSA AB
Business unit Cylinder at ASSA AB in Eskilstuna are having problem with frictions in their production process. Changes are occurring and older products along with machineries are phased out and transferred to low-cost countries. This opens up possibilities to at a larger extend customize physical flows after production flows. The authors where given the task to analyze the production and find problem areas to improve and to give suggestion on how Business unit Cylinder can work to optimize their production flow.The aim of the thesis work is to come up with suggestions on how to reduce the lead time in production and how the tied up capital can be reduced. In more detail the task included to find problem areas that are counteracting an effective flow, give solutions on new flows for the production of the cylinder core, give suggestions for new stock points for the production and how the production shall be managed and controlled.During the last twelve months ASSA AB has sold over 700 different types of cylinder cores, and the product range is very wide.
Kender du overhovedet Azorno : En paranoid och skamfylld läsning av Inger Christensens Azorno
A paranoid and shameful reading of Inger Christensens novel Azorno.The contagious feelings of paranoia and shame played a vital part in my first reading of the novel Azorno, written by the Danish poet Inger Christensen. In this essay, I?m letting those emotions direct the ?understanding? and analysis of the novel. In earlier research the focus has been to comprehend what the novel ?really is about?, and even though it has been mentioned that the form probably is a way to make the reader a visible constructer of the novel?s ?meaning? the understanding has never been created by the affects that occurs during the reading.
Isolerande och skyddande dubbelväv - Produktutveckling av ett kylande fodral
Denna rapport beskriver en produktutvecklingsprocess som behandlar utvecklandet av ett textilt material som isolerar och skyddar. Det textila materialet ska fungera till ett kylande fodral utan att förstöra dess funktion och behöver därför uppfylla en speciell kravspecifikation. Materialet ska isolera mot kroppsvärme, vara stabilt, skyddande och slitstarkt. Dubbelväv valdes tidigt i arbetet då det är ett enkelt sätt att kunna påverka det textila materialets egenskaper i form av material- och konstruktionsval, i en betydligt större utsträckning än i en enkelsidig väv. För att utveckla ett material med de efterfrågade egenskaperna har tester utförs och den metod som har använts är hypotesprövning.
Anaerob psykrofil behandling av hushållsavloppsvatten i UASB : Utvärdering av kapaciteten hos en två-stegs UASB-reaktor för behandling av hushållsavloppsvatten
Hammarby Sjöstad is a new district in southern Stockholm. A main objective with the Sjöstad project was to halve the environmental impact compared to other construction work. The environmental goals involve a halved water consumption rate, a local treatment of storm water and trials aiming to extract nutrients from the waste water. Sjöstadsverket is an experimental treatment plant used for testing new treatment processes for domestic waste water from Hammarby Sjöstad. The results are to be compared with the conventional process used at Henrikdals treatment plant today.