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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Prestandabaserad design genomkonceptuell energianalys : Performance-based design through conceptual energy analysis

Kihlberg, Fredric January 2011 (has links)
This degree project aims to investigate the potential and possibilities for conceptual energyanalyses in the early stages of the design process. Many key decisions are made in theearly stages of a project regarding the shape and orientation of the building. Conceptualenergy analyses can provide the architects with insight regarding different design option’srelative energy performance.As the demands for more sustainable buildings increases, so does the need for earlyenergy analyses. Performing analyses in the early stage requires many assumptions andguesswork which could lead to a large margin of error.The offering from Autodesk is a module in Revit Architecture/MEP and the stand aloneprogram Project Vasari (under development). It is an interesting tool for architects with aneasy and quick work flow and can easily be implemented in today’s design process.The analysis of the results generated shows that the program has a margin of error thatmake some of the features less useful. Comparing the results with an analysis done in amore established and sophisticated software suggests that the result at this stage cannot betrusted.
2

Användning av glas i kontorsbyggnader : Fokus på energi- och koldioxidutsläpp / Use of glass in office buildings

Moucho, Mohammadkarim, Farhat, Nader January 2017 (has links)
Syfte: Att undersöka effekterna vid ersättning av större delar av fasader ikontorsbyggnader med glas, där fokus ligger på energianvändning samtkoldioxidutsläpp. Metod: Kvalitativa semistrukturerade intervjuer, litteraturstudier och dokumentanalys. Resultat: En kontorsbyggnad studerades med hänsyn till den specifikaenergianvändningen och koldioxidutsläppen. Glasarean och fasadarea beräknades förden befintliga byggnaden. Sedan utökades glasarean i fasaden från 30 % till 50respektive 70 %. Resultatet visade att en ökning från 30 % till 50 % minskade denspecifika energianvändningen för samtliga fyra energiberäkningar som utfördes iGöteborg, Lund, Stockholm och Umeå. Däremot ökade den specifikaenergianvändningen för samtliga fall vid en ökning från 50 % till 70 %. Vid analyseringav koldioxidutsläppen fick man fram att koldioxidhalten alltid minskade vid ökning avglasarea. Konsekvenser: Rapporten visar tydligt att det finns ett problem gällandeenergiförbrukning och koldioxidutsläpp idag. Byggregler och råd ska följas utavbyggbranschen för att uppnå målen som EU har satt upp. Studien visar att det finns etttydligt samband mellan koldioxidutsläppen och ökningen av glasarean dock saknadesdetta samband för energianvändningen. Begränsningar: Arbetet begränsas till att undersöka en kontorsbyggnad medbetongstomme belägen i Göteborg, Stockholm, Lund och Umeå. Glasets arkitektoniskaperspektiv behandlas inte och påverkar därav inte val eller placering av glaspartier,glaset har inte några bärande egenskaper. / Purpose: To investigate the effects of replacing major parts of facades in officebuildings with glass, focusing on the energy use and the carbon dioxide emissions Method: Qualitative semi- structured interviews, literature studies and documentanalysis. Findings: An office building was studied with regard to the specific energy use andcarbon dioxide emissions. The glass area and façade area were calculated for theexisting building. Then the glass area was expanded from 30 % to 50% and 70%respectively. The result showed that an increase from 30% to 50% decreased thespecific energy use for all four energy calculations carried out in Gothenburg, Lund,Stockholm and Umeå. On the other hand, the specific energy use for all cases increasedwhen expanding the glass area from 50% to 70%. When analyzing carbon dioxideemissions, it was found that the carbon dioxide content always reduced as a result ofthe increasing glass area.Implications: The report clearly shows that there is a problem regarding energyconsumption and carbon dioxide emissions today. Building rules and advice should befollowed by the construction industry in order to achieve the goals set by the EU. Thestudy shows that there is a clear connection between carbon dioxide emissions and theincrease in the glass area, however, this connection was lacking for the energy use. Limitations: The work is limited to investigating an office building with concreteframes located in Gothenburg, Stockholm, Lund and Umeå. The architecturalperspective of the glass is not considered and therefore it does not influence theselection nor does placement of the glass portions, the glass have no bearing attributes.

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