This is a report written for an examination project C-level, on the subject of energy. The examination project is a product of the FVB Sweden AB (district heating bureau). It started with a meeting with Stefan Jonsson FVB Sweden AB, were he explained the content of the project, and from this a presentation of the problem was made. The problem that needed to be solved was how they could control the valves in the system to provide heating to everyone in the system. The valves are often oversized so the pump in the heating plant would have to be enormous to be able to provide enough flow to be sufficient, if everyone in the system had there valves fully opened. I came up with two solutions to the problem, one was a wireless network that could keep track of the valves and the other solution was an extra sensor that was placed on the radiator.

This report describes an investigation of the indoor climate in two different workspaces. Since we a big part of our lives are staying indoors in artificial environments, and more particularly in our workplaces, we think it would be interesting to do this investigation. The technical solutions for air treatment systems began with simple natural systems without fans and where the thermal rise of the air applied. In modern time is technical air treating systems used to take care of the fresh air supply. This type of units can supply filtered air with the right temperature to the building. Well-functioning ventilation is essential to bring clean fresh air to the room and effectively remove impurities without sound- or draught problems. The indoor climate is relevant for the output capacity.

Inom EU vill man sänka energianvändningen med 20 % till 2020.Växjö kommunhus har gamla och ineffektiva installationer, samt ett dåligt isolerat och otät klimatskal.Denna rapport undersöker vad för slags inverkan byte av installationer, samt byte av klimatskal, har för inverkan på kommunhusets energianvändning. Till detta har energiberäkningsprogrammet VIP-Energy 1.5.5 använts.För att sammanfatta resultatet av arbetet så är det mest effektiva och lönsamma alternativet att byta ut installationerna, samt att kylbehovet ökar då man kraftigt isolerar detta hus..

Today?s system to measure the volume in a tank consists of a vertically placed sensor. When a vehicle is tilted the level of the fluid might change and if the volume is calculated based only on the information from the sensor it could result in a incorrect value.This thesis exams a new method to calculate the volume in tanks by using sensor fusion to crosscheck the i formation from the level sensors when the vehicle is tilted. The information is then used to see if it is possible to identify the grade of tilt by the change of fluid level. If the grade of tilt can be measured then the volume can be calculated in a more accurate way.

I sta?der byggs va?gtunnlar fo?r att ge rum a?t bosta?der och kontor, i dessa trafikplatser fa?rdas a?rligen miljontals fordon. Bra?nder i dessa insta?ngda utrymmen kan fa? allvarliga konsekvenser och arbetas aktivt med att fo?rhindras. I Va?rtahamnen i Stockholm projekteras mellan 2011 och 2013 en kortare va?gtunnel i slutet av E20.

I en ambition att öka effekten och insatsberedskapen i den svenska försvarsmakten har stora omorganisationer skett efter det kalla krigets slut. Den senaste förändringen innebär att värnplikten läggs på is under fredstid och att kontraktsanställda soldater skall ingår i förbanden istället. Detta har medfört reduktioner i personalvolymer, troligtvis för att kunna bekosta löner för de kontraktsanställda soldaterna. Inom flygvapnets markförsvarsförband har reduceringen blivit så stor att vid en spriding av det svenska flygvapnet, finns inte tillräckligt med förband för att skydda samtliga baser effektivt. För närvarande används hundar som sensor för lokalisera fientliga spaning och sabotageförband vid och omkring svenska flygbasområden.

Due to higher standards of living around the world, greater industries and larger infrastructures causes an increase of the global energy consumption. This harvest of energy puts a great stress on the global environment. With this development, it becomes increasingly important to utilize energy resources in the best possible way.Fans are components that are often used in the industry and in households. A common problem is that the fan is oversized. An oversized fan causes an excessive flow, which has to be adjusted in order to achieve the correct flow.

Sweden is dependent on secure sea transport. Shorter disruption of imports of fuel and crude oil can be managed with an emergency stock, but a prolonged halt in imports creates problems. For industry, the vulnerability is greater. Fragmented production chains in combination with expenditure reductions in inventory causes a dependency on proper transport of intermediate goods in the manufacturing industry. A lengthy disruption thus involves disruption of production for both domestic consumption and for export goods containing imported parts.In order to secure shipping routes with a limited number of vessels, Mine Counter Measures (MCM) capacity is required, and according to the Armed Forces, developed with new sensors and autonomous vehicles.

AbstractClimate and environmental issues are of paramount importance. Researchers agreethat we must all contribute to a reduction of gases that contribute to climatechange. Energy consumption must decrease within all sectors and the promotionof renewable sources of energy must be introduced.Each sector should aspire to decrease its energy consumption. Energyconsumption is strongly linked to waste gases that contribute to climate change.Passive houses are a part of the construction industry's methods to attain energyconservation.Passive houses are derived from low energy houses and super insulated houses. Apassive house is intended to obtain heat from the inhabitants and through theiractivities.

This examination work on studies and research in articles is mostly from other countries. The purpose of the examination work have been to find out if there are any means you can work with to find out when its time to start irrigation, how they works and if they are credible. In Sweden there is not many means for decide when it?s time to irrigate and how much water you should appear. Swedish farmers think they have so much experience that they don?t need techniques like this.

The importance of energy- and environmental issues has increased, and the work towards reducing carbon dioxide emissions plays a major part. The European Union has set up goals for the membership countries to work towards this to happen. The carbon dioxide emissions in Sweden have been reduced the last few years, but there is still a lot to do. About 30 per cent of Sweden?s carbon dioxide emissions generate from energy usage related to housing, this is why the housing sector is of interest to examine.

Ventilator-associerad pneumoni (VAP) är en vanlig förekommande komplikation hos patienter som vårdas på intensivvårdsavdelningar (IVA). Komplikationen leder till förlängd vårdtid, ett ökat lidande för patienten och högre mortalitet. På en intensivvårdsavdelning på ett sjukhus i södra Sverige används idag flera metoder för att förebygga VAP, dock används ej slutet sugsystem som preventiv metod. Syftet med denna litteraturstudie var att undersöka om slutet sugsystem minskade förekomsten av VAP jämfört med öppet sugsystem. Sju vetenskapliga artiklar granskades och kvalitetsbedömdes.

Rapporten beskriver arbetet med att ta fram en regulator för värmning av luft i en ventilationsanläggning för gruvor. Den redan existerande anläggningen förser två gruvor med luft genom två separata schakt. För att inte riskera isbildning under den kalla delen av året så måste luften värmas till en specifik temperatur. Om det bildas is som sedan lossnar och faller ner så riskeras skador på både människor och på utrustning i schaktet. En simuleringsmodell för anläggningen och en modell att använda vid regulatorframtagning tas fram.

This thesis has been written with our society?s current energy-situation in mind.Although it only deals with one particular block of buildings, the solutions and suggestions presented herein are quite applicable on other objects of the same type.This thesis is intended to be used as a guideline for energy-preserving projects in general, with an eye to buildings erected during the Swedish ?million-programme? in the sixties and seventies.The paper starts with the acquiring of all necessary blueprints and technical specifications. It then moves on to a thorough description of the buildings in question, and their heating- and ventilation-systems.Followed by this the reader is guided through the successive stages of energy-perseverance measures that are available, and possible. Reasoning around the economic factors concerning all measures is also held.The paper ends with conclusion, and a discussion concerning the delicate issue of the higher return-temperatures possibly reaching the district-heating plant..

Sweden is dependent on secure sea transport. Shorter disruption of imports of fuel and crude oil can be managed with an emergency stock, but a prolonged halt in imports creates problems. For industry, the vulnerability is greater. Fragmented production chains in combination with expenditure reductions in inventory causes a dependency on proper transport of intermediate goods in the manufacturing industry. A lengthy disruption thus involves disruption of production for both domestic consumption and for export goods containing imported parts.In order to secure shipping routes with a limited number of vessels, Mine Counter Measures (MCM) capacity is required, and according to the Armed Forces, developed with new sensors and autonomous vehicles.