This report is the product of the course AF101X, a bachelors degree in Samhällsbyggnad atKTH. The task of the course is to design a small house at a given location and also implement adeepening study. The house in this report is located in Kiruna in the north of Sweden, where theclimate is much colder than in the rest of the country.The deepening study of this report is to evaluates how realistic passive housing north of thePolar Circle is based on those facts. The house will to some extent be designed to fit the passivehousing standard.

Title: Veingeskolan F - Investigation of the indoor environment and a structural analysisMethod: Complete analysis of structural drawings to determine if the school have been constructed correctly. In my teorethical studies of the drawings I must seek out points that may have been damaged from moisture, this contains a full survey of the foundation, walls and ceiling. To strenghten the data collected from the drawings I must visit the school and do field investigations to find out if the school has any problems with the indoor environment.Analysis: I determined that we had some damages on specific places, these damages was caused by leaking roofs, a carpet that was tarnished by strong sunlight in connection with some type of glue and also the ventilation that may have been drawing malodorous air from a shaft in the foundation.Conclusion: I was able to see that the decision to demolish the school was quite drastic, if the county would have done continuous fixups on the construcion when the employes had complained maybe the action to the tear the school down would have been unnecessary. The lack of communication between the two parts lead up to the decision to demolish and build a complete new school..

Denna rapport är ett inledande steg mot att förbättra arbetsmiljön för svetsare vid påsvetsning med Uddcomb Metoden i massakokare. Syftet med rapporten är att analysera problemet med värme och dålig luft samt förklara hur och varför problemet uppstår. I arbetet ingår även att ta fram olika lösningar för att slutligen hitta ett komplett system för ventilation och kylning. Den föreslagna lösningen består av ett integrerat kylsystem och ett koncept med mindre fläktar, kallade torpeder, som monteras på arbetsplanen vilka driver ut varm och smutsig luft snabbare ur kokaren. Den föreslagna lösningen utreds även ur ett ekonomiskt perspektiv.

Innovativa passiva lösningar kan bidra till förhöjd klimatkomfort och sänkt energianvändning i kontorsbyggnader. I rapporten har flera passiva lösningar och deras egenskaper identifierats. Självdrag och växter har varit rapportens största fokus som fördjupningsdel. Självdragets förmåga att klara av ventilationsflödet i en kontorsbyggnad med atrium, belägen i Stockholm har simulerats i programmet IES-ve och dess CFD-modul. Då utomhustemperaturen ligger under 12 °C fungerar självdrag enligt rekommendationerna.

Denna rapport sammanfattar resultat av ett examensarbete på en högskoleingenjörsutbildning som utfördes av två studenter på Malmö högskola. Arbetets syfte var att genomföra en mängd olika experiment med accelerometer, barometer och GPS i en modern smarttelefon. Ett antal scenarier för en tänkbar sensoranvändning i applikationer formulerades för att vägleda olika experiment. Experimentdata dokumenterades noggrant och analyserades med avsikten att skapa en databank med information för framtida studier. Analys av data inkluderar höjdbestämning i naturen och i byggnader med hjälp av barometersensor, geografisk position med hjälp av GPS, hastighet och acceleration under en hissfärd med hjälp av accelerometer. Rapporten innehåller en omfattande litteraturstudie om användning av sensorer vid inomhuspositionering. Från analys av mätdata, kom vi fram till slutsatsen att är möjligt att beräkna höjden från barometerdata med bra noggrannhet under optimala omständigheter. GPS höjden från mätningarna har stor felmarginal jämfört med den verkliga höjden samt när den jämförs med den beräknade höjden från barometern. Genom att utföra en numerisk integration på accelerometer-data kom vi fram till att det är möjligt att beräkna ungefär hur långt man har färdats med en hiss, dock att vissa detaljer måste tas i beaktning..

Sweden's drinking water quality is considered to be high partly due to a high quality of the raw water and a well developed sewage infrastructure. Despite this, there is water contamination that could be prevented by installation of a sophisticated early warning system. Some of the major players in the production of drinking water have already invested in different types of early warning systems to ensure drinking water of high quality. There are various forms of early warning systems where automatic monitoring of E. Coli is an interesting alternative.

Bakgrund: De flesta inomhusbadanläggningar är idag 30-60 år gamla och många anläggningar har stora problem med skador på både byggnader och bassänger. Skadorna är ofta så pass allvarliga att det inte längre är lönsamt att renovera utan på många platser planerar man att bygga nya bad. För att undvika framtida problem är det viktigt att dra lärdom av vilka skador och problem som har inträffat samt hur man vid nybyggnation och renovering ska kunna undvika dem. Vid byggande av dagens inomhusbadanläggningar tillämpas främst tidigare branscherfarenheter. Det faktum att så stora brister och omfattande problem förekommer, tyder på att kunskapen är otillräcklig.

The master thesis, conducted at Metrima AB, concerns the development of a non-intrusivedistribution meter as a basis for individual tap water billing in apartments.The project is conducted in response to the market interest in individual tap water billing inapartments as an answer to environmental concerns regarding water consumption. Due to thehigh installation cost of traditional water meters, a new method of determining waterconsumption, without having to cut water pipes, is proposed.The proposed method distributes the total water consumption for an apartment complex toindividual apartments according to distribution meters, measuring water run-time, in eachapartment. The water run-time is estimated by measuring the water pipe?s outward vibrationsand temperature changes.A test environment was established and a prototype built, using a tilt- and vibration sensor forvibration sensing and a precision temperature sensor to measure temperature changes. As bothsensors work well in the test environment, further testing was done in 3 apartments for aduration of 5 days.

SUMMARY The interest of horses in the riding sector has increased the last decades. A large amount of horses are transported in a 1 or 2-horse trailer, which is pulled by a car. Today a large number of different products and designs of trailers can be found on the market. The difference in shaping of trailers depends on tradition and experience. There are no detailed directions on the demands for shaping of horse trailers today. The literature review contains a market analysis of both Swedish and imported horse trailers.

Efficient energy use in the housing sector is crucial for achieving a sustainable society. The expansion of this sector only represents a fraction of the existing houses, hence it?s within the existing houses the potential for energy savings lie. This potential has been analyzed in order to determine if it?s possible to cut the current energy demand in half.

Vertical hydropower units has a rotating mass of up to 1000 tons. For the generator and turbine to work well the rotating system is required to be centered in relation to the surrounding structure. This is achieved by means of radial bearings. The dynamic characteristics of these bearings have a strong impact on the overall rotational dynamics of the total system and thus influence the vibrations in the unit. At Vattenfall Research & Development in Älvkarleby ongoing research is taking place on how the bearing parameters should be represented in the rotor dynamic calculations.

This master thesis is made of two parts. The first part concerns the method and results ofdesigning a motion control system for a piece of research-equipment called BIRGIT. Theequipment is made to be used for research on eyemovements. In the second part, a computermodel of a part of the balance organ in the inner-ear is developed. The work has been done atthe Bernadotte laboratory at S:t Erik Eye Hospital.The equipment the control system is made for is a so-called rotationchair.

One of the main tasks of the Swedish Armed Forces over the past few years has been International assignments, which increased the importance of the Lessons Learned process. Methods of simulator training with computers have become more frequent and the technical ability to collect digital data from sensors has been developed as well. This work demonstrates how the experience of Lessons Learned can be communicated with the computer simulator StriSimPC and how modern technology in future support experiences from the Lessons Learned process at the tactical level in the Army.Currently knowledge sharing consists of several processes and strategies in the Swedish Armed Forces. This is done by written reports, oral presentations and different practical exercises.This case study shows the functions of the simulator StriSimPC, methods of training and how it is used today. The study also describes the future opportunities, where digital metadata acquired from the modern combat vehicles could contribute sharing of experience in the Lessons Learned process.The summarized conclusions indicate that StriSimPC can combine the two strategies for personalization and codification of knowledge transfer to reach a higher level of learning.

The building sector accounted for around a fourth of the total energy usage in Sweden in year 2010 (Energimyndigheten, 2012). Therefore it has become very interesting to achieve a lower energy usage in residential buildings. One way to achieve that is to build so called passive houses. By being very well insulated and have low leakage through the walls, they can reduce the energy usage for heating with a substantial amount. The first passive house was built during the 90?s in Germany; and in Sweden the first passive house was built in Gothenburg 2001.

I got interested in this subject when I came in contact with Västtrafiks new paymentsystem myself during my visits in Gothenburg. I suspected problems with the informationmaterial regarding it and others seemed to share my opinion that the payment system wasdiffcult to understand. When I contacted Västtrafik and asked them about the paymentsystem they confirmed that some understanding diffculties had occurred. With thatconfirmation I decided to make it my project to look in to the matter.Some methods were used to identify the problems. The methods could again confirm thatthere were some problems with the payment system and that the information material wasa vital reason.