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683 Uppsatser om Thermal insulation calculation - Sida 25 av 46

Hållbarhetsaspekter på tillvaratagande av spillvärme i borrhålslager- ur ett företags- och samhällsperspektiv

The objective of this study is to examine the sustainability of recovering industrial wasteheat from several heat sources in a foundry constructed in a plant belonging to ITT Waterand Wastewater in Emmaboda, Sweden. A triple bottom line perspective will be appliedto achieve this objective. The triple bottom line approach takes into account ecologicaland social performance in addition to financial performance. The technology forrecovering the waste heat is a Borehole Thermal Energy Storage (BTES) which is aconstruction consisting of 140 vertical boreholes, 150 meters deep with an internal spaceof four meters.The calculated amount of energy for storage is approximately 3800 MWh annually. Ofthis amount 2500 MWh are expected to be utilized, while storage losses accounts for theremaining part.

Trä- och stålreglars påverkan av värmeflödet i utfackningsväggar

Inom dagens byggande i Sverige ställs allt högre krav på den värmeisolerande förmågan hos klimatskärmen i de hus som byggs. Detta ställer i sin tur högre krav på konstruktionerna och medför även ny problematik. Standardlösningar som tidigare fungerat bra byts ut mot nya, ibland obeprövade, lösningar. De hårdare kraven på energi- och fuktdimensionering innebär alltså att vikten av val av stommaterial ökar vid en projektering.Vi har här försökt ge en realistisk bild av hur valet av reglar kan påverka energi och fukttillståndet hos en byggnad med utfackningsväggar, med fokus på reglar i fält. Till undersökningen användes referensobjekt i form av ritningar som tillhandahölls av handledaren på Clarus arkitekter.

Tre Svenska bankers landsfonder med avseende på riskjusterad avkastning

Purpose: The purpose of this study is to investigate how three banks country funds are performing relative to each other in regard to risk and return. And to find out if there is any underlying factor that may have affected the stock exchange in the different countries.Methodology: The study is based on secondary data and will apply the quantitative method, based on a deductive approach. The sample consists of three major Swedish banks and from them we have selected three country funds. The calculation formulas that have been applied are: Sharpe ratio, standard deviation and Arithmetic Average.Conclusion: The Writers concluded that Sweden funds had the highest yield to lowest risk in both periods in all three major banks. We have also concluded that the underlying factors affecting a country fund.

Rennäringens kulturella värden : en studie om svenskars preferenser

The Swedish reindeer husbandry has had economic difficulties for some years. Due to this, and the fact that the reindeer husbandry plays an important role in Sámi culture, the Swedish state has chosen to support the industry. If these grants where to be withdrawn, the reindeer husbandry as well as the Sámi culture would decrease, which would cause welfare losses for the people living in Sweden. The aim of this study was to elicit what the Swedes are willing to pay to maintain the amount of reindeer husbandry and Sámi culture. By using Contingent Valuation and a survey the willingness to pay was estimated.

FEM i praktiken : En studie i FEM-Designs användningsområden inom konstruktionsprojektering

This diploma work has been conducted for the consulting company Ramböll inUppsala, Sweden with the purpose to perform a study with the calculation programFEM Design 9.0 made by Strusoft. The aim has been to find out if it is possible to gainadvantage by utilizing more advanced 3D software for design calculations, instead ofthe traditional methods currently used in construction works.The method of approach has been to model an existing warehouse building with theprogram FEM Design, and then compare the results with those attained with FrameAnalysis and hand calculations. These results are then analyzed. An evaluation is maderegarding to what benefits can be achieved using a more advanced 3D-model.The results of the study show that the differences between the methods are not ofany significance with regard to the design of the steel frame. However in morecomplex materials such as reinforced concrete, the differences become more notable.The conclusions drawn by the authors of this study into FEM Design are that theeducation requirements of the program are higher than for simpler programs, whosepurpose are solving predetermined problems.

Älgens barkgnag på granstammar : omfattning med avseende på geografisk utbredning, skadad volym och ekonomiska konsekvenser

In three areas in the province of Småland studies has been done to investigate how big damage the moose may do to P. abies. An inquiry examination and two different types of surveys were done to find out how big area, which volume and which financial consequences the moose debarking has had on the forest. When the volume was calculated the rot spreading was included. The area that was damaged was stipulated with the answers from the inquiry examination. 59 % of the asked forest owners answered the inquiry.

Inventering av processvattenbalans : fastställande av fjärrvärmedistributionens läckage inom Vattenfall Värme Uppsala AB

Heat is distributed to the district heating customers through pipes with water as a heat carrier. The district heating system is complex. To decide what is leakages from the district heating net versus what is the water consumption of the plant, is difficult. Therefore, the purpose of this master thesis is to establish a model where the district heating net?s leakages but also the water consumption of the plant can be followed daily. The project is performed at Vattenfall´s district heating power plant in Uppsala. Information is gathered through discussions, drawings of the plant and guided tours of the plant.

Tilla?mpning och simulering av naturlig ventilation : Potential fo?r utnyttjande i kontorsrum

Mechanical ventilation is the most common type ofventilation in newly constructed office buildings. Therehas been an interest to utilize natural ventilationinstead of mechanical ventilation among architects andHVAC consultants in recent years. This is due to thesize of mechanical ventilation systems, which arespace consuming. The mechanical ventilation system isalso complex and requires maintenance. Furthermore,the fan uses a considerable amount of energy.

Budgetering inom lammproduktion : en jämförelse mellan lammproducenter och Agriwisesstandardkalkyl

For a company to get the best possible profitability, requires financial planning. Budgeting isa common tool in financial planning. For operating lamb producers, a planning program suchas Agriwise is a good tool. Individual lamb producers may change certain standard figureswithin the planning program to better correspond with reality of the individual cases. In thisway, lamb producers may plan according to which revenues and costs they may expect thenext period.

Vindkraftsplanering i skogsmark

The aim of this study about wind power planning in forest was to examine the factors and restrictions, which represent technical limitations, biodiversity, tourism and amount of energy for wind farms in Kronoberg County. Suitable areas for wind power were identified from the collected information about planning principles and potential conflicts. From the suitable areas the potential energy gain is calculated. Methods used were mainly a literature review, interviews with experts and practitioners, GIS analysis and a rough calculation of the energy gain. The section of information and facts describes in general wind power planning and possible conflicts.

En studie om elevers val av metoder vid subtraktionsberäkningar

In this qualitative study of students? methods of calculating subtractions, I have used interviews, subtraction exercises and analysis of teaching material. The purpose of my study was to explore which methods students in grade three uses when calculating subtractions. I also wanted to highlight which strategies the students use and their comprehension of the concept of subtraction. In the study, I also highlight the different pedagogical ideas on which the teaching material is based on and the students? choice of methods.  The study shows that the students choose to use the methods?deduct? and ?kind of number? independently.

Hon drog upp en lax och Bobby sydde en sidenklänning : Hur medveten är man om ett genusperspektiv i kurslitteraturen?

Sammanfattning:Uppsatsen består av två kvantitativa beräkningar gjorda i sex grammatikböcker ur kurslitteraturen vid Institutionen för nordiska språk, LU. Den första beräkningen utgörs av antalet subjekt i exempelmeningarna med manlig respektive kvinnlig referent. Den andra beräkningen utgörs av de semantiska roller som dessa subjekt innehar i exempelmeningarna. Syftet är att utröna om män representeras oftare än kvinnor i exempelmeningarna, om de är mer aktiva och om män generaliseras till "människor". Min hypotes var att finna att män representeras oftare än kvinnor, men att det förändras över tid, något som också infriades till viss del.Den kvantitativa beräkningen har sedan analyserats kvalitativt med hjälp av en feministisk språkteori för att utröna bakomliggande orsaker till skillnader mellan representationen av män respektive kvinnor.

DYNAMIKEN OCH EFFEKTEN AV MARINA V?RMEB?LJOR P? TROPISKA KORALLER (SCLERACTINIA)

Marine heatwaves (MHW) have become increasingly common in recent decades due to greenhouse gas emissions that have caused climate change. A marine heatwave is when the sea surface temperature rises, which damage many different ecosystems in the sea. One ecosystem that is sensitive to temperature changes is tropical coral reefs, which are at risk of bleaching during marine heatwaves. Coral bleaching is when its symbionts leave the coral and they lose their color, while also starving to death as they lose their food source. The purpose of this report was therefore to investigate what the connection between marine heatwaves and coral bleaching looks like, and to see if there are any geographical differences.

Standardisering och kalkylering av maskinhallar

This thesis has been carried out onbehalf of Lindborg & Sons in Örsundsbroand is a concluding part of the Bachelorof Science program in ConstructionEngineering at Uppsala University. Theaim of the project is to make a plea fora database of good examples of themachine room types using Revit drawingprogram, and work out a correspondingworksheet .At the start of the process it becameapparent that there were somedifficulties in using Revit to creatingmachine room types of the variety whichthe company builds. For modelling ofoblique, curved and irregular lines, Ihad to use my AutoCAD Architecture andthen import them into Revit.The creation of calculus in Excel wastime consuming. On the other hand, it isa one-time work to create the template.The advantage of Excel is that there isno need for a re-calculation at the costof various types of machine hall. Allthat is needed is to replace the variousparameters.

Finansiering av djurstall :

I conducted this examinasions work because I want to find out how loan to farmes are working and more specific towards younger farmers. What you have to think about before you go to the bank and what the banks are thinking about lending money to farmers. This work is based on an investment plan propasal for 20 000 laying hens on a farm in the Kalmar area. The investment plan propasals have two diffrent alternetives, one farm on 25 hectares and one on 50 hectares. I have chosen this becouse I wanted to study how the diffrent sizes of farms are changing the banks thoughts about lending money. These investment plan propasals have included four banks with questionnaire and deep interview.

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