452 research outputs found

    Performance assessment of thermal bridge elements into a full scale experimental study of a building façade

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    In this paper, an experimental and numerical approach to the characterization of thermal bridges is presented. The need for this characterization was found within an experimental study in a 2 floor high facade. This facade was constructed with 3 concrete elements which were placed in it to produce a similar thermal bridge effect to the one created by floor slabs traditional building construction in Spain. Commonly applied thermal assessments perform one-dimensional heat transfer analysis over planar elements such as the facades studied in this experiment. However, it is well known that thermal bridges are locations in buildings where one-dimensional heat transfer analysis cannot be applied. This problem was approached by creating a numerical 2D thermal model which was calibrated against experimental data from several temperature and heat flux sensors which were located at specific points in the thermal bridge elements.Government of the Basque Countr

    ELUM: User-friendly spatial modelling tool predicts net soil greenhouse gas balance of bioenergy land-use change in UK up to 2050

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    The ELUM Software Package spatially predicts the net soil greenhouse gas balance of land-use change to grow energy crops in the UK up to 2050. It is able to support a range of analyses of bioenergy, and was developed in consultation with anticipated users. Results can be obtained according to specific interests, viewed in the graphical interface and exported for a variety of purposes. The functionality of the software is demonstrated through different case studies, which show an array of applications

    Energy and the military: Convergence of security, economic, and environmental decision-making

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    Energy considerations are core to the missions of armed forces worldwide. The interaction between military energy issues and non-military energy issues is not often explicitly treated in the literature or media, although issues around clean energy have increased awareness of this interaction. The military has also long taken a leadership role on research and development (R&D) and procurement of specific energy technologies. More recently, R&D leadership has moved to the energy efficiency of home-country installations, and the development of renewable energy projects for areas as diverse as mini-grids for installations, to alternative fuels for major weapons systems. In this paper we explore the evolving relationship between energy issues and defense planning, and show how these developments have implications for military tactics and strategy as well as for civilian energy policy
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