Evacuated Window Glazing Research and Development: A Progress Report

    Research output: NRELTechnical Report


    This document summarizes progress during a nine-month period of an ongoing, exploratory research talk. The objective of the research is to evaluate the technical feasibility of a highly insulating, evacuated glazing for windows and other building apertures. Research includes engineering design and analysis of the glazing structure, materials development for its components, and the development offabrication processes that could be used in the practical, mass production of such a glazing system. The targeted design performance goals are 70 percent solar weighted transmittance with less than 0.5 W/m2 K conductance (insulating R value greater than 12 F ft2 h/Btu) with an acceptable view quality.
    Original languageAmerican English
    Number of pages18
    StatePublished - 1984

    NREL Publication Number

    • NREL/PR-255-2578


    • building aperatures
    • glazing
    • insulation
    • photovoltaics (PV)
    • solar
    • windows


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