In spite of the benefits of shifting the threshold zone of road tunnels by means of pergolas, installed before their portal to save energy in the electrical lighting, the lack of uniformity in the road under these structures makes them a non accurate solution in terms of visual performance and, hence, road safety. In this work, a new solution, consisting on the introduction of a diffuser material in the spaces between beams of the pergola is proposed. The measurements and results in a scale mock-up, a computational simulation and the comparison with a theoretical model, as well as the potential impact in real tunnels are presented and analyzed.


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    Title :

    Use of diffusers materials to improve the homogeneity of sunlight under pergolas installed in road tunnels portals for energy savings


    Contributors:


    Publication date :

    2015


    Size :

    6 Seiten, 9 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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