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Träfflista för sökning "WFRF:(Fröling Morgan 1966 ) ;pers:(Danielski Itai)"

Sökning: WFRF:(Fröling Morgan 1966 ) > Danielski Itai

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1.
  • Danielski, Itai, et al. (författare)
  • Heated atrium in multi-storey apartment buildings, a design with potential to enhance energy efficiency and to facilitate social interactions
  • 2016
  • Ingår i: Building and Environment. - : Elsevier. - 0360-1323 .- 1873-684X. ; 106, s. 352-364
  • Tidskriftsartikel (refereegranskat)abstract
    • The design concept of conditioned atria gains increasing popularity in commercial and service buildings all over the world, but is still not a common building design in the residential sector. This study investigates the potential of such design in residential buildings in Nordic climates as means to enhance both energy efficiency as well as social interaction among residents. Energy modelling was used to compare energy efficiency among designs of residential buildings with and without atrium and to identify important design parameters. Social interaction was analysed, based on a survey evaluating the perception of residents living in an existing multi-storey apartment building designed with a heated atrium in the north of Sweden.The results show that heated atrium in Nordic climates have a potential to reduce the total final energy demand while at the same time increase the conditioned space of the building. To positively impact energy efficiency, the atrium should fulfil three requirements: (i) it should be designed to reduce the shape factor for the whole building; (ii) it should have the minimum glazed area that comply with the building requirements concerning natural light and visual comfort; and (iii) adjustable solar shading should be installed in the atrium’s façades to avoid unwanted overheating. The survey results indicate that the additional space created by the atrium has a potential to facilitate and promote social interaction among residents and to increases a sense of neighbourliness and belongingness, which are often discussed as important parameters in relation to social sustainability.
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2.
  • Danielski, Itai, 1973-, et al. (författare)
  • In situ measurements of thermal properties of building fabrics using thermography under non-steady state heat flow conditions
  • 2018
  • Ingår i: Infrastructures. - : MDPI. - 2412-3811. ; 3:3
  • Tidskriftsartikel (refereegranskat)abstract
    • This study describes a quantitative method using thermography to measure the thermal properties of building fabrics that are subjected to non-steady state heat flow due to consistently changing meteorological conditions. The method includes two parts. First, the convection heat transfer coefficient is measured by thermography and heat flux meters on a small segment of the examined building fabric with uniform surface temperature. Then, thermal properties of large building fabrics are evaluated by thermography. The two parts are measured simultaneously. The method was tested on 140/160/190 mm thick massive laminated spruce timber walls of a test facility cabin located in Östersund, Sweden. The results varied by only a few percent in comparison to validation measurements performed with heat flux meters and in comparison, to values from the literature. Due to rapid changes in weather conditions the measured values had large disparity, but still a linear regression with low confidence interval was obtained. Obtaining an accurate value of convection heat transfer was important for achieving high measurement accuracy and, therefore, the value of this parameter should be measured. Other important factors to consider are solar radiation, reflected infrared (IR) radiation from nearby objects and the number of thermal images.
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3.
  • Jonasson, Jonas, et al. (författare)
  • Life cycle assessment of a passive house in northern Sweden
  • 2014
  • Ingår i: Proceedings of the 20th International Sustainable Development Research Conference Trondheim 18-20 June 2014. - Trondheim : Norwegian University of Science and Technology, Department of Product Design.
  • Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
    • When it comes to more sustainable buildings, energy use in the build environment has been in focus for some time. The life cycle assessment in this study reveals that the building materials can contribute significantly to environmental burdens of a residential building in northern Sweden. Energy efficiency, efficient use of good building materials and issues of appropriate design need to be discussed in the same context to move toward a more sustainable built environment.A life cycle assessment of a passive house in northern Sweden, including building materials and energy use is reported. This case study is used as base for a discussion of what can constituent resilience in the built environment.For energy efficient buildings in a energy system with renewably based energy carriers, building materials might give rise to a significant or even dominating part of the life cycle impact of a building. This give rise to considerations regarding choices of building materials as well as design of buildings to minimize such impacts while not forgetting social aspects impacted by building design. “Resilience” in the housing sector needs to be discussed and defined in a context taking into account LCA impacts of building materials, energy efficiency, design issues and social issues at the same time.
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