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Because of its high vacuity, VIG has provided the world with excellent heat insulation, condensation resistance, and sound insulation. 1 Insulation against the heat Regarding VIG structure, the edge is soldered, and the center is separated by supports to form a vacuum chamber. As a result of the above structure, the heat transfer coefficient in the central area of the VIG is far less than that in its edge, and when considering practice in the real world, the heat transfer in the edge is associated with the window frames. Conseq... more