Heat flow control and energy recovery using CO2 in double glass arrangements

Ron Zevenhoven*, Martin Fält

*Korresponderande författare för detta arbete

    Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

    1 Citeringar (Scopus)

    Sammanfattning

    The interaction of gases such as carbon dioxide (CO2) and other so-called participating gases with thermal infra-red (TIR) radiation is one of the mechanisms behind global warming and climate change. The noticeable effect this apparently gives at atmospheric concentrations of around 400 ppmv can be made use of in technical systems where pure (and pressurized) CO2 is confined in, for example, a double glass arrangement. Depending on pressure, temperature, gas composition and path length a certain "optical thickness" for TIR radiation is obtained that can be used to decrease or increase heat flows, or create temperature differences. The latter would allow for power production using, for example, a Stirling engine. Of great importance also is the temperature difference between ground-level surroundings and the sky. With significant amounts of electric power being used for air-conditioning, heating or cooling purposes a smart window set-up that makes use of the interference of TIR radiation with participating gases may result in significant reductions in energy use and costs. Typical applications can be found in residential and office building windows or a glass roof that covers large building structures like railway stations or parking areas. Besides glass, plastics may be used as window material. The purpose of this paper is to present the potential of energy recovery from TIR radiation using most importantly earth-to-space radiation of long wavelengths (> 4 μm), to be distinguished from incoming solar radiation at shorter wavelengths (< 4 μm). Most relevant here is the TIR absorption band for CO2 around a wavelength of 15 μm. Note also that unlike solar irradiation the earth-to-space radiation is not limited to daytime and cloudless skies. Finally, some examples for technical system lay-out and performance are given. This gives an introduction by the paper by Fält and Zevenhoven submitted to this conference (Fält and Zevenhoven, 2010).

    OriginalspråkEngelska
    Titel på gästpublikationASME 2010 4th International Conference on Energy Sustainability, ES 2010
    Sidor201-206
    Antal sidor6
    DOI
    StatusPublicerad - 2010
    MoE-publikationstypA4 Artikel i en konferenspublikation
    EvenemangASME 2010 4th International Conference on Energy Sustainability, ES 2010 - Phoenix, AZ, USA
    Varaktighet: 17 maj 201022 maj 2010

    Publikationsserier

    NamnASME 2010 4th International Conference on Energy Sustainability, ES 2010
    Volym2

    Konferens

    KonferensASME 2010 4th International Conference on Energy Sustainability, ES 2010
    Land/TerritoriumUSA
    OrtPhoenix, AZ
    Period17/05/1022/05/10

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