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  • 101.
    Vestlund, Johan
    et al.
    Dalarna University, School of Technology and Business Studies, Energy and Environmental Technology.
    Rönnelid, Mats
    Dalarna University, School of Technology and Business Studies, Energy and Environmental Technology.
    Dalenbäck, Jan-Olof
    Thermal performance of gas-filled flat plate solar collectors2009In: Solar Energy, ISSN 0038-092X, E-ISSN 1471-1257, Vol. 83, no 6, p. 896-904Article in journal (Refereed)
    Abstract [en]

    A sealed space between absorber and cover glass in a flat plate solar collector makes it possible to reduce the influence of humidity condensate and dust at the same time as the enclosed space can be filled with a suitable gas for lowering the heat losses. This article describes the influence of different gases on the heat losses in a typical flat plate solar collector. A model of a gas-filled flat plate solar collector was built in Matlab with standard heat transfer formulas. The results show that the overall heat loss can be reduced by up to 20% when changing from air to an inert gas. It is further possible to reduce the distance between absorber and cover in order to reduce the mechanical stresses in the material with similar heat losses.

  • 102. Wennerberg, J
    et al.
    Kessler, J
    Hedström, J
    Stolt, L
    Karlsson, B
    Rönnelid, Mats
    Dalarna University, School of Technology and Business Studies, Environmental Engineering.
    CIGS thin film PV modules for low-concentrating systems2000In: Eurosun 2000, Copenhagen, Denmark, 2000Conference paper (Other academic)
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