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Fabrication and characterization of triple vacuum glazing at low temperature using an indium-based seal

Arya, Farid, Fang, Yueping and Hyde, Trevor (2012) Fabrication and characterization of triple vacuum glazing at low temperature using an indium-based seal. In: The Energy & Materials Research Conference (EMR2012) Malaga Spain 20-22 June 2012, Malaga Spain. BrownWalker Press Boca Raton, Florida, USA. 4 pp. [Conference contribution]

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URL: http://www.brownwalker.com

Abstract

Triple vacuum glazing (TVG) is a new generation of thermally insulating windows which consists of three glass sheets with two vacuum gaps hermetically sealed together around the edges. A high level of thermal insulation is achieved by evacuating the spaces between the glass sheets to a very low pressure; the low pressure greatly reduces conduction and convection within the space, therefore heat transfer through vacuum glazing is significantly lower when compared with double or triple glazing with an inert gas fill. The separation of the sheets which would otherwise touch under the influence of atmospheric pressure is maintained by an array of small support pillars. Triple vacuum glazing samples were fabricated at low temperature using an indium edge seal; a pump-out system enabled a high level of vacuum to be achieved between the panes. The TVG samples fabricated in this study comprised three, 4 mm thick 400 mm by 400 mm glass panes with low-emittance coatings separated by an array of stainless steel support pillars spaced at 25 mm with a diameter of 0.4 mm and a height of 0.15 mm. The thermal performance of the TVG samples were characterized using a guarded hotbox calorimeter and theoretically analyzed using a finite volume model. The experimentally determined thermal performance of the fabricated glazing was in good agreement with that predicted theoretically.

Item Type:Conference contribution (Lecture)
Faculties and Schools:Faculty of Art, Design and the Built Environment
Faculty of Art, Design and the Built Environment > School of the Built Environment
Research Institutes and Groups:Built Environment Research Institute > Centre for Sustainable Technologies (CST)
Built Environment Research Institute
ID Code:27508
Deposited By: Dr Yueping Fang
Deposited On:03 Jan 2014 10:27
Last Modified:03 Jan 2014 10:27

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