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    Double Envelope Unitized Curtain Wall for solar preheating of ventilation air

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    Double Envelope_.pdf (384.1Kb)
    Identifiers
    URI: http://hdl.handle.net/11556/1158
    ISSN: 2209-3850
    ISBN: 978-099238357-2
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    Author/s
    Garay-Martinez, Roberto; Gonzalez, Diego; Álvarez, Izaskun; Arregi, Beñat; Sagarduy, Gorka
    Date
    2020
    Keywords
    Curtain Wall
    Solar heat
    Experimentation
    Ventilation
    Abstract
    Despite recent efforts on energy performance improvement, curtain walls remain a significant contributor to the energy consumption of commercial buildings. A novel double envelope unitized curtain wall system is presented, aimed at the substantial improvement of the energy performance of glazed systems. Outdoor air is ventilated through an integrated cavity in its paths to the ventilation air intake of the air handling unit. In its path through the glazed envelope, the air is heated from both incident solar radiation and transmission losses recovered from the indoor environment. A substantial energy performance improvement is achieved by means of the preheating of fresh air. Energy consumption is reduced in the heating season, and even net gains above the heating demand are delivered under favorable conditions. By-pass elements are integrated to allow free cooling and natural ventilation when required in cooling mode. In this way, the double envelope also provides advantages in summer ...
    Type
    conferenceObject

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