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The substantial progress in the science and technology of vacuum glazing that has occurred over the past few years is reviewed. Vacuum glazing up to 1 m 1 m in size has been produced with an air-to-air, mid-device thermal conductance as low as 0.90 W m -2 K -1 , compared with 1.3W m -2 K -1 for high performance double glazing. The mechanical...
Evacuated glazing consists of two plane sheets of glass which are hermetically sealed around the edges and which contain a narrow evacuated space. An array of support pillars maintains the separation of the glass sheets under the influence of atmospheric pressure. The vacuum effectively eliminates gaseous heat transport through the structure, and radiative heat transport can be reduced to a low...
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