Sökresultat:
2085 Uppsatser om Water consumption - Sida 45 av 139
Syns inte - Finns inte? En kvalitativ studie om unga som valt att ej dricka alkohol.
The purpose of this study was to examine how young people who have chosen not to drink alcohol experience themselves and their surroundings. The aim was to find out what role temperance plays in their perceived identity. I also wanted to find out how they experienced the views of them, temperance and the temperance movement in their surroundings. Finally, I was interested in the question about alcohol, witch significance they believed it had for them and their surroundings. As theoretical ground, I used Howars S.
Enegiutredning Hotell Princess
This report will show the energy usage of Hotel Princess in Sandviken, Sweden. When the hotel changed owner an examination of the hotels heating, ventilation and sanitary systems were done. The report showed flaws in the ventilation system, and is why the new owner wanted a closer look at the energy use of the hotel. The original building was built in the 1930s and two major extensions have been built, one in the 1950s and the most recent in the 1980s. An assumption made is that the building parts were built to the restrictions during the time. Activities on the hotel include sleep over, conference, night club, massage and swimming in the hotels pool section.
Miljövänligt och prisvärt eller slitet och äckligt? : En undersökning om unga vuxnas attityder till second hand-kläder
Många av de miljöproblem som finns idag går att koppla till produktion-och konsumtionsvanor. Att konsumera på ett hållbart sätt är vitalt för att ett samhälle ska kunna försörja framtida generationer utan att förbruka jordens resurser helt. Unga vuxna har en viktig roll att spela när det kommer till att utveckla samhället i en miljömässigt hållbar riktning. Hur de väljer att konsumera har och kommer ha stor påverkan på miljön. Att köpa kläder på second hand är ett sätt att bedriva en mer hållbar konsumtion, då det både är resurssparande och ofta ekonomsikt fördelaktigt.
Design av ett decimeringsfilter med låg effektförbrukning Design of a decimation filter with low power consumption
Implementering av FIR filter kan göras på olika sätt. I detta examensarbete har två olika varianter beskrivits med hjälp av VHDL, syntetiserats, simulerats och sedan jämförts med avseende på effektförbrukning..
"Säg mig vad du äter och jag ska säga vem du är" : En kvantitativ studie om efterfrågan av hälsosamma livsmedel
Obesity and overweight are today classified as one of the largest epidemics in the Western world and is threaten a large part of the population. As a reaction to this a major health trend has emerged in recent decades. Every day consumers are exposed to information from the media about what is healthy or unhealthy to eat and the recommendations change frequently.There is great interest in healthy food on the Swedish food market, but still healthy foods only represents a small proportion of the total food sales. The essay examines the gap between the current and potential demand for healthy food and if it can be explained by any of the following factors: lack of information, price, taste or cognitive behavioral.To study these questions a quantitative method have been used and 213 questionnaires were collected. The intention is to draw general conclusions about the entire population.
Energieffektivisering i ett verkstadsföretag : En analys av energibesparande åtgärder samt uppvärmnings- och kylsystems driftkostnader och koldioxidutsläpp
The energy use in a workshop company has been examined in this work in order to find areas for energy efficiency improvement. The combined oil and electricity heating in the company were compared with other alternative heating systems including cooling of the premises in following combinations:Ground source heat pump for heating and coolingDistrict heating and absorption coolingDistrict heating and low temperate surface water coolingEnergy use, operation costs and carbon dioxide emissions were calculated for the current heating systems and the three alternatives including cooling. The ground source heat pump for heating and cooling decreases bought energy with 34 MWh annually compared to current heating only. The district heating and low temperate surface water cooling has the largest reduction of operation cost and carbon dioxide. The operation cost decreases with 42 kSEK and the carbon dioxide with 43 metric ton CO2 annually.
Att dela eller inte dela? : Vad som möjliggör respektive förhindrar produktdelningssystem
Product sharing systems is recently starting to become a more common phenomenon. Carpools exist in more than 40 Swedish towns and both Stockholm and Gothenburg have established bicycle sharing systems. Other products for which sharing systems have been established throughout Sweden are clothing and tools. From the point of view of the consumer, product sharing systems is a form of consumption which can be placed somewhere in between renting and privately owning a product, where the consumers usually pay a membership fee or a monthly fee to have access to the products whenever they need them. The concept is relatively new, and there are many products for which product sharing systems do not exist.
Behovet av Goodwill - En fallstudie av Just Water
Hur sponsring av ändamålsrelaterad karaktär kan användas för att skapa goodwill..
Energieffektivisering av luftningssteget på Käppalaverket, Lidingö
This master thesis in energy optimization was made during the autumn of 2006 at Käppala wastewater treatment plant in Lidingö, Stockholm. A preceding thesis, where all electricity consumption was mapped, showed that the aeration in the biological treatment is the single largest consumer in the plant, and it is therefore of interest to reduce this cost. The oxygen control strategy used at Käppala WWTP is working well from a nutrient removal point of view, but not from an economic one. The last aerobic zones have a very low oxygen consumption during low loading periods which give rise to enhanced dissolved oxygen concentrations with excessive costs and reduced denitrification as a result. But also during periods of normal loading unnecessary high oxygen concentration are sometimes given.By modifying the aeration control strategy three full-scale experiments have been made, with the intention to reduce the air consumption.
Mobilapplikationer ? användarens syn på energiförbrukningen.
Under de senaste åren har användningen av mobilapplikationer i smartphones ökat och kommer förmodligen fortsätta att göra det. Smartphoneanvändare ställer ofta höga krav och vill nästan alltid ha bättre prestanda i smartphones vilket driver utvecklingen framåt. Dock har många smartphoneanvändare klagat på att batteriet inte räcker till för deras användning. Enligt olika forskare är inte batteriet dåligt utan det är mobilapplikationer som förbrukar för mycket energi. De flesta studier som handlar om energiförbrukningen i mobilapplikationer fokuserar mycket på de tekniska aspekterna och det finns relativt lite kunskap om vad användare tycker om energiförbrukningen.
?Mode är på modet? : - en kvalitativ studie av fenomenet modebloggar -
AbstractTitle: ?Fashion be in fashion? ? a qualitative study of the phenomen fashion blogs (?Mode är på modet? ? en kvalitativ studie av fenomenet modebloggar)Number of Pages: 46 (54 including enclosures)Author: Maria RydströmTutor: Else NygrenCourse: Media and communication studies DPeriod: Spring semester 2007University: Division of Media and Communication, Department of Information Science,Uppsala universityAim: Contribute to the understanding of a yet unexplored domain, fashion blogs. And contribute to a discussion of the roll of fashion blogs in the swedish fashionindustry.Method: Qualitive textual analysis of three fashion blogs and interviews with the authors to the three fashion blogs. Completed with six interviews with experts from the fashionindustry and the blogworld.Main results: The authors behind the fashion blogs are young women living in big cities.They write about fashionnews, runway trends, fashion items and style outfits worn by them selves. Fashion blogs provide a new way to follow trends and spread them to the society.
Översvämningskartering av Vombs ängar
Vomb meadows is an area well knows for its rich bird life. During the 19:thcentury until mid 20:th century, the meadows were flooded annually in order toincrease the hay yield. The river Klingavälsån situated along the west side of themeadows, used to be a shallow river, meandering across the landscape. In the1940?s the river was straightened and made deeper.
Studie av belagda kolvringarmot plasmasprutat cylinderfoder : Med avseende på friktion och nötningsmotstånd
Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.
Incitament för energibesparande åtgärder i den byggda miljön
More efficient energy consumption is essential to secure a sustainable future, not least within the building and real estate sector which answers for approximately 40 % of the EU countries total energy consumption. One part of EU: s work to reduce the energy consumption is the directive on energy performance of buildings which among other things have lead to stricter demands on energy performance in new and renovated buildings.One of the difficulties with making buildings more energy effective is that it often demands big investments and although it results in lower operating costs the extent of these savings and therefore also the repayment time can be difficult to decide beforehand. To make it interesting for property owners and also tenants to invest in energy efficient buildings powerful incentives are needed. Favorable loans to energy efficiency projects are one example of governmental instruments that have been tested in other European countries with good results.Reduced operating costs appear to be the main incentive for property owners to make their buildings more energy efficient. The best result of an energy efficiency project is usually achieved by cooperation between property owners and tenants but in order to make that interesting it is important that both parts can profit from the savings.
Miljöcertifierade byggnader Värde för investeraren
This bachelor thesis describes why investors should invest in environmentally certified buildings instead of non certified buildings. The report provides an overview of possible factors influencing an investor in the investment process of an environmentally certified building. The report explains why building companies find incentive to build green buildings and how a cash flow method can be adapted so it can be used in the valuation process of an environmentally certified building. Environmentally certified buildings are used as a strategy to reduce emissions that threaten the environment as well as a strategy to obtain market shares for the building companies. This report focuses on the economic advantages of an environmentally certified building.The construction- and real estate industry stands for approximately 40 percent of the energy consumption in the world.