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Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications

Arya, Farid, Hyde, Trevor, Henshall, Paul, Eames, Phillip, Moss, Roger, Shire, Stan and Zacharopoulos, Aggelos (2015) Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. In: 10th Conference on Advanced Building Skins 3-4 November 2015, Bern, Switzerland, Bern, Switzerland. Economic Forum. 1557 pp. [Conference contribution]

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URL: http://conferencecentre.org/publication/10004587

Abstract

In this work a flat evacuated glass enclosure is designed and fabricated and its thermal performance characterized for solar thermal applications. To investigate the effect of the thermal insulation provided by the high vacuum pressure in the enclosure, the heat transmission of the enclosure is determined under both atmospheric and vacuum pressures. The flat evacuated enclosure consists of two glass panes hermetically sealed around their periphery to a stainless steel spacer creating a cavity between the glass panes 15mm wide. An array of stainless steel support spacers are set between the glass panes to prevent the panes from collapsing under the influence of atmospheric pressure.A simple solar absorber is integrated into the enclosure and a novel co-centric port is designed for thermal fluid transfer through the edge spacer to the absorber. The assembly is tested under a solar simulator, and using infrared thermography techniques and thermocouples attached to the enclosure its thermal response is analysed. Results show that the greatest heat loss occurs near the support spacers on the glass surface, and near the inlet and outlet ports at the edge spacer. Key words: Evacuated Glass Enclosure, Vacuum Insulation, Evacuated Co-centric tube, Solar thermal, Solar simulator, Infrared Thermography , Trevor Hyde1, Paul Henshall2, Phillip Eames2, Roger Moss3, Stan Shire3, Aggelos Zacharopoulos1

Item Type:Conference contribution (Paper)
Keywords:Evacuated Glass Enclosure, Vacuum Insulation, Evacuated Co-centric tube, Solar thermal, Solar simulator, Infrared Thermography
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:37153
Deposited By: Dr Farid Arya
Deposited On:14 Mar 2017 14:06
Last Modified:17 Oct 2017 16:28

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