The urban heat island is an area restricted to a city center where the temperatureis higher than its surrounding environment. The greatest temperature difference isfound at night when the weather is calm and the sky is clear of clouds. There are twomajor causes behind this phenomena and the first one is the use of energy forheating of houses. The heat leaks through the walls of the buildings and warms upthe surrounding mass of air. The second one is the use of building material whichstore the suns radiation on daytime and releases the heat during night.

Bostadsbolaget Mitthem AB äger 11 tvåvåningshus med lägenheter på Uppsalavägen i Sundsvall. Spårfilmsmätningar har visat på radonhalter över gränsvärden i flertalet lägenheter, vilket också konstaterats bero på markradon. I dagsläget är lägenheterna utrustade med F-ventilation utan värmeåtervinning. I detta arbete utreddes möjligheten att lösa radonproblematiken genom införande av energieffektiv ventilation med värmeåtervinning. En sådan åtgärd kan påverka radonhalten genom förändring av dels luftomsättningen och dels undertrycket inomhus.

Akademiska Hus owns and manages the university facilities in most university towns in Sweden. Bilbergska house in Örebro was built in 2008 by Akademiska Hus, and designed by White Architects. Today's buildings must meet accessibility requirements determined by Swedish Board of Housing, and it is the developer who must ensure that they are fulfilled. Swedish Board of Housing requirements are often vaguely written and interpretation space is large.This report aims to investigate how much of the requirements which are set towards the University and landlord Akademiska Hus are being achieved. This is done by studying the requirements that are set.

This master thesis aims to describe and examine Haninge cultural centre, inaugurated in 2002. We study the centre from an organization theory point of view, with focus on the buildings physical appearance. The question we want to answer is to what extent, and if, Haninge cultural centre fulfills the underlying vision, formulated by the municipality of Haninge. Is the centre the symbol of a new era of Haninge and a vivid democracy as it was meant to be? Is there a congruency between the image the building creates and the vision that was formulated by the municipality? We also seek out to see how the cultural centre relates to an older tradition of cultural centres.

The climate changes that are occuring in the world have resulted in that the EU callingfor a 20 % reduction in energy consumption to the year 2020, to reach that goal theEU want the public sector to go forth as a good example. Västfastigheter owns andmanage the hospital buildings in the Västra Götaland region. To be able to reducetheir energy usage Västfastigheter has hired several consulting firms to chart out theenergy consumption on each hospital building. The biggest energy savings potentialhave been calculated and what the cost will be to perform each action. The energyaudit have been completed and stand as the decision basis for Västfastigheter?s choiceon which action packages that should be implemented.

When forces in foundation piles are calculated according to classic theory, thefoundation are assumed to be infinitely rigid which means that the foundation will notbend. High buildings need their whole width to be stable and use the ground floorwall as a foundation. But when, for example windows are needed in the ground floorwall, the stiffness of the foundation decreases which change the forces in the piles. Inthis report the difference of pile forces versus classic theory has been analyzed, and ifpile forces can be calculated as in classic theory. Further on, the effects of the wallmovement were analysed and how the buildings crack safety would be affected by themovement at the ground floor.

Current research shows that the number of door openings during surgery is unjustifiably high. It is the operating room nurses task to ensure a hygienic and aseptic environment throughout the surgery with the goal of minimizing the risk of healthcare associated infection. The study aims to investigate whether the operating room nurse is attentive to the number of door openings during surgery and if the operating room nurse is attentive to the reasons behind the door openings. A pilot study with nine observations was carried out on two smaller hospitals in the region of Västra Götaland. The results showed a significant underestimation of the rated door openings compared with the actual ones.

The intent with this paper is to investigate the medieval habitation in central Old Uppsala. This time-period has over the years been neglected. Therefore I wish to summarize and ana-lyze the medieval habitation to see what can be said about its continuity, and also to investi-gate why it is located in certain areas.Due to the amount of source material I have limited my investigation area to the central Old Uppsala. It is possible that this limitation will affect the result of the research but without the limitations the investigation area would have been too large to handle.The source material has been collected from excavation reports and the summarized. My theory is material culture and material agency.

Examensarbetet som utförts på Institutionen för Maskinteknik vid Blekinge Tekniska Högskola i samarbete med Kockums AB har benämningen ? Upphängningssystem?. Dagens upphängning av rör, ventilationsrör och kabelbanor består av ett antal olika singelupphängningar utan större samordning. Detta har gjort att Kockums AB önskat få fram ett samordnat upphängningssystem som klarar av alla dessa upphängningstyper. Utifrån denna problemställning har vi arbetat oss fram till ett upphängningssystem bestående av ett multisystem och ett flertal singelupphängningar för rör, kabelbanor och ventilation.

Vid projektering idag ställs konstruktören ofta inför valet att projektera för antingen ventilation med konstanta flöden, eller med variabla flöden. Vidare kan även flödena varieras manuellt eller automatiskt. Det konstruktören måste ta hänsyn till är investeringskostnaden, men även potentiella energi- samt kostnadsbesparingar över tid. Många gånger är det svårt att veta hur energianvändningen påverkas av de olika systemvalen varför det är svårt att välja det mest optimala systemet.Detta arbete undersöker livscykelkostnaden, LCC, med nuvärdeskostnaden på en skola i Uppsala med tre olika system, antingen konstant ventilationsflöde, CAV med timer, manuellt styrd variabel ventilation, VAV, eller automatisk VAV med styrning på temperatur och CO2. Huvudanledningen till det är att skolor består av en mängd olika klassrum och lokaler som inte alltid används under skoltiden, risken finns alltså att skolan överventileras med ett traditionellt CAV.

The study investigates questions and considerations emerging when stone in historic buildings needs to be replaced. The focus is on the surface treatment of stone in sandstone façades in pre-industrial buildings. That means buildings constructed by traditional methods and craftsmanship without the use of modern technology.The research issue originates from the extensive stonework that is planned for the façades of the Stockholm Palace. The project includes the replacement of large quantities of damaged stone to newly cut stone. This raises the questions about the use of modern and rational methods for surface treatment on the replacement stone.

During the past few years an increased attention has been paid to environmental issues in the construction and property sector in Sweden. In order to simplify the work with these issues a Swedish environmental certification system for buildings called Miljöbyggnad has been developed. This thesis aims to investigate the opinion of a selected number of selected property owners of Miljöbyggnad. From that basis recommendations and actions for the future work with the system will be presented.The investigation has been conducted through personal interviews with five property owners. The main issues that the interviews have been based on are their purpose, experiences, perceived complications and future prospects in terms of certification using Miljöbyggnad.The system intends to be cost-effective, simple and to offer a relevant environmental assessment of buildings and the result from the report indicates that this is largely fulfilled.

Rotskärsskolan is located in Skutskär, Älvkarleby municipality and the school conducted today consists of lower secondary. The school was built in the early 1960s and contains three buildings. Today there is a great need for reconstruction of Rotskärsskolan, when the premises are worn out and not suitable for today's education. It must therefore be a phased change involving all the school buildings, starting in the winter of 2008/2009.Our degree project involves one of these buildings, called house F. This building will, by a recent decision, be adjusted for classes from preschool up to grade five, special school and leisure activities when some of the municipality's schools will consolidate.

Today, about 15 to 20 percent of Sweden?s total emission of carbon dioxide can be traced to the household sector. By examining apartment blocks in a life cycle perspective, the origin of the carbon dioxide emission has been charted and analyzed. This information has been used to create a computational model that calculates the total emission of carbon dioxide from a specific apartment block. The results from the analyzed apartment blocks indicate that both the use of energy and the emission of carbon dioxide have been reduced since the 1960s. Through the examination of building materials, it is possible to lower the emission of carbon dioxide that origins from the construction phase of an apartment block.

This essay deals with the industrial past, present and future and begins with the impact and importance the industrial revolution has had on us humans, socially, economically and structurally. Today's society has developed from industrial production of goods to the production of services but the industrial sites remains. The essay examines issues concerning the protection of the industrial environment, their status as a cultural heritage, what is done with our industrial heritage and the opportunities it has for the future. Malmö has a great industrial history and now one of the cities oldest industrial sites, the north of Sorgenfri, will be transformed. The essay compares the plan with guidelines for future development from the Town Building Office with an antiquarian investigation for the same area.