Sök:

Sökresultat:

1064 Uppsatser om Heat expansion - Sida 45 av 71

Klimatskärmens funktion : En jämförande analys av projekterade nybyggnationer i Östra Salabacke, ur ett energi- samt fuktperspektiv

The design of the building envelope affects the energy consumption of a building. As the energy requirements for new buildings are becoming more demanding, the performance of the building envelope must be improved. Energy efficiency and durability are important attributes to consider.This report includes investigations of the building envelope, moisture and passive solar energy. It is based on the analysis of two different buildings with different designs. These buildings stand as reference for two of the companies who are working on a new, climate smart, residential area in Uppsala, Sweden.Studies and analyses on energy consumption and moisture transportation were made.

Evaluation of Lactobacillus reuteri DSM17938 as starter in cheese production

The probiotic bacteria Lactobacillus reuteri DSM17938 was evaluated as a starter culture in cheese production, with the intention to produce a new interesting product within the functional food market. Growth and acidification rate in milk subjected to different heat treatments, as well as supplementation with growth promoting factors or support cultures was measured during controlled fermentations. The results showed that the weak proteolytic activity of L. reuteri could be compensated for by supplementation with 1% casamino acids or 5% MRS broth. Furthermore, a decrease in growth and acidification rate could be seen when using yoghurt culture or Lactobacillus delbrueckii as adjunct cultures.

Forsmark 3 ?Ett Framtida Biobränslekraftverk?

Recent turmoil surrounding nuclear power as an energy source, especially since the accidentat Fukushima, has largely contributed to the debate of whether or not nuclear power should beused as an energy source. This study has examined the economic feasibility of replacingForsmark?s 3rd nuclear reactor with a bio fueled power plant, and find out how this could bedone.The power generation that has to be replaced is equal to 1170 MWe. To replace this, 6 largescaleCFB-boilers, each providing over 200 MWe, were necessary. In addition to this, eachboiler required their respective turbine sets, comprising one high-pressure-, and one lowpressureturbine with intermediate reheating capacities.Based on this, a rankine-cycle was modeled using the software EES, to be able to calculatethe total heat required in the power plant.

Energieffektivisering av modern tillbyggnad till äldre skola : fallstudie från Österbyskolan i Österbybruk

The Swedish government has introduced a goal to reduce the energy intensity by 20% to the year 2020. To reach this goal actions need to be taken throughout the energy sector which includes residential and commercial buildings. This thesis considers the possibility to reduce the energy usage in a building located close to Uppsala. The analyzed building is a combined office, cafeteria and entrance and was completed about half a year before this project started. Therefore the measures presented for a more energy efficient building are presented as measures for future constructions.Simulations have been made in VIP-Energy, a dynamic energy calculation program.

Plusenergi och dess installationer : Kvarter Trettondagen

The latest thing in the area of environmental building today is energy-plus-house. The idea behind the energy-plus-house is to create a house that produces more energy than it consumes. To accomplish this, the house uses renewable energy, in this particular case solar energy. With the help from a proper construction and thoughtfully projected installations you can achieve a surplus of energy. The surplus energy can then be sold to the surrounding buildings and thereby conduce to a financial profit for the household.

Motivationsskapande ledarskap : Tillämpning av ledarskap inom hemelektronikbranschen

De senaste årtiondenas globala expansion har lett till förändringar av det moderna ledarskapet. Konkurrensen har ökat mellan olika organisationer vilket medfört nya utmaningar som ledarskapet måste förhålla sig till. En ökad mångfald, teknologins utveckling, och förändrade kundrelationer är några av de faktorer som påtvingat förändringar av det ledarskapet som bedrivs. Idag måste ledarskapet individanpassas mer istället för det kontrollerande och monitorerande funktion den haft tidigare.Studien har undersökt ledarskapet i två av Elgigantens hemelektronikbutiker med avseende på ledarskapets påverkan på säljarnas arbetsmotivation. Tonvikten har legat på att analysera medarbetarnas syn på hur man som ledare kan skapa en ökad arbetsmotivation.

Energieffektivisering av stenstadshusen - genom byggnadstekniska energisparåtgärder

The purpose of this degree-project was to investigate the possibilities for primary air preheating into the two smallest waste incineration boilers of Halmstad Energy and Environment. The investigation is a pre-study which has the primary goal to evaluate technical and financial offers from companies that manufacture primary air preheater, and investigate if it is technically and financially profitable to do a purchase on primary air preheaters in the future.In the pre-study it is proposed that it is most efficient to have individual primary air preheater, one for each incineration boiler and the primary air are also proposed to be preheated by hot water in the pre-study. Further in the pre-study it is proposed that the heat-exchanger should have plain tubes instead of finned tubes, to avoid getting dirty fast. The space in the boiler-room is limited, and therefore the major problem was to fit in the primary air preheaters into the boiler-room. By comparing the different offers from the companies, the result in the pre-study shows that the offer from the company C.A.

EW26 : Drivanordning för vertikaltgående fönsterpartier

EW26 is a Bachelor thesis carried out by students, Jessica Blomberg, Sara Danielsson and Mikael Johansson, during the academic year 2010-2011 at the Innovation Engineering Program of Halmstad University. The project was conducted in close cooperation with Ergosafe AB.Ergosafe develops, manufactures and sells electric sliding windows. Due to the company?s current expansion phase they want to increase their product range. The company has identified a need for large windows that moves vertically.

Att fånga & förmedla en livsstil med ett varumärke & en affärside : en fallstudie av Proud

The purpose of this essay was to find conceivable marketing- and business strategies that can be combined with a company?s lifestyle.This essay is dependent on a number of interviews with the owner of a maternity clothing trademark, PROUD. PROUD is a new company that has many different options concerning expansion, trademark and its existing and future products and also the knowledge regarding the client?s attitude towards PROUD.The authors of this essay believe that the trademark should represent a lifestyle. For a company to be able to deliver, it has to understand what the future clients want and need.

Svenskars resemotiv till Egypten och Thailand

Purpose: My purpose of this study was to examine the factors that motivate Swedes to travel to Egypt and Thailand. To answer the question, I have used two questions.What are the factors that motivate Swedes to travel to Egypt and Thailand?What is the motive for Swedes choose to travel to destinations such as Egypt and Thailand?Method: The method I am using  is the qualitative method. The qualitative method has been processed through interviews of Swedish travelers, the Swedish travel agencies as well as Egypt and Thailand tourist agencies specializing in trips to Egypt and Thailand via phone and e-mail.Theory: The theory I am using are motivators and push-pull factors in achieving an understanding of the factors that influence choice for Swedes to travel to destinations such as Egypt and Thailand.Empiricism: The goal was to get a much more qualitative data from the response from the Swedish travel agencies, Egypt and Thailand tourist agency and Swedish travelers who have traveled to both of these destinations.Result: What I have come up with in my study is that the factors that motivate Swedish travelers to travel to Egypt and Thailand, is the warm climate, sun and sea, culture, variety, the cheap price situation and that there are activities for different age groups. This has led to the heat in both Egypt and Thailand has attracted Swedish travelers to travel to both destinations.

Kartläggning av spånprodukter vid Sävar såg

A change towards using more biofuels than fossil fuels is taking place in Sweden, and in many other parts of the world. This makes the use of fuel pellets increasingly popular, causing a greater demand for sawmill sawdust products. There is a trend towards the use of multiple types of shredders, instead of a single type in each sawmill. The purpose of the study was to characterize the different flows of saw particles that can be found at Sävar såg when cutting thick or thin wood with different cutting techniques. The saw particles size, shape, moisture content and heat value were analysed by the cutting stations: first cutting fast and slow, second cutting fast and slow, grading fast and slow and planning.

Miljö- och samhällsekonomisk analys av behandling av biologiskt avfall

Biogas is a renewable fuel that can be extracted from anaerobic digestion of many differentsubstrates, for example biological household waste. An alternative handling of the waste is tomix it with other wastes and incinerate it in a combined heat and power (CHP) plant. Thisstudy uses life cycle assessment to investigate which type of waste handling that is betterfrom an environmental point of view, anaerobic digestion with biogas production orincineration. The results are based on a case study of a biogas production plant owned by thecompany Ragn-Sells in Vänersborg. The alternative is incineration at a CHP plant inGothenburg.

Anpassning av passivhus för ett kallare klimat - teknisk och ekonomisk analys

The purpose of this degree-project was to investigate the possibilities for primary air preheating into the two smallest waste incineration boilers of Halmstad Energy and Environment. The investigation is a pre-study which has the primary goal to evaluate technical and financial offers from companies that manufacture primary air preheater, and investigate if it is technically and financially profitable to do a purchase on primary air preheaters in the future.In the pre-study it is proposed that it is most efficient to have individual primary air preheater, one for each incineration boiler and the primary air are also proposed to be preheated by hot water in the pre-study. Further in the pre-study it is proposed that the heat-exchanger should have plain tubes instead of finned tubes, to avoid getting dirty fast. The space in the boiler-room is limited, and therefore the major problem was to fit in the primary air preheaters into the boiler-room. By comparing the different offers from the companies, the result in the pre-study shows that the offer from the company C.A.

Byggnadsfysikaliska riskbedömningar : Metod för tidig hantering av fuktsäkerhetsfrågor

The purpose of this degree-project was to investigate the possibilities for primary air preheating into the two smallest waste incineration boilers of Halmstad Energy and Environment. The investigation is a pre-study which has the primary goal to evaluate technical and financial offers from companies that manufacture primary air preheater, and investigate if it is technically and financially profitable to do a purchase on primary air preheaters in the future.In the pre-study it is proposed that it is most efficient to have individual primary air preheater, one for each incineration boiler and the primary air are also proposed to be preheated by hot water in the pre-study. Further in the pre-study it is proposed that the heat-exchanger should have plain tubes instead of finned tubes, to avoid getting dirty fast. The space in the boiler-room is limited, and therefore the major problem was to fit in the primary air preheaters into the boiler-room. By comparing the different offers from the companies, the result in the pre-study shows that the offer from the company C.A.

A risk analysis of moose close to roads

For many decades the increase in traffic volume, expansion of highways and infrastructure has lead to an increase of wildlife vehicle collisions which are unfortunately very common in many countries today. They cause great deal of material damage and even kill humans or wildlife. Measures in the form of warning signs, under- and overpasses and fencing have been implemented for a long time with the help of observation by hunters and collisions sites. However this study focuses on the moose?s perspective and the variables that, both spatially and temporally, could have an effect on why and when moose are close to certain types of roads.

<- Föregående sida 45 Nästa sida ->