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

Farid Arya, Trevor Hyde, Paul Henshall, Phillip Eames, Roger Moss, Stan Shire, Aggelos Zacharopoulos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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
LanguageEnglish
Title of host publicationUnknown Host Publication
Pages256-263
Number of pages1557
Publication statusAccepted/In press - 15 Sep 2015
Event10th Conference on Advanced Building Skins 3-4 November 2015, Bern, Switzerland - Bern, Switzerland
Duration: 15 Sep 2015 → …

Conference

Conference10th Conference on Advanced Building Skins 3-4 November 2015, Bern, Switzerland
Period15/09/15 → …

Fingerprint

Enclosures
Thermoanalysis
Glass
Vacuum
Stainless steel
Simulators
Solar absorbers
Thermal insulation
Thermocouples
Heat losses
Atmospheric pressure
Hot Temperature
Insulation
Fluids

Keywords

  • Evacuated Glass Enclosure
  • Vacuum Insulation
  • Evacuated Co-centric tube
  • Solar thermal
  • Solar simulator
  • Infrared Thermography

Cite this

Arya, F., Hyde, T., Henshall, P., Eames, P., Moss, R., Shire, S., & Zacharopoulos, A. (Accepted/In press). Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. In Unknown Host Publication (pp. 256-263)
Arya, Farid ; Hyde, Trevor ; Henshall, Paul ; Eames, Phillip ; Moss, Roger ; Shire, Stan ; Zacharopoulos, Aggelos. / Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. Unknown Host Publication. 2015. pp. 256-263
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title = "Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications",
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",
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author = "Farid Arya and Trevor Hyde and Paul Henshall and Phillip Eames and Roger Moss and Stan Shire and Aggelos Zacharopoulos",
note = "Reference text: [1] C. Eaton and H. Blum., “The Use of Moderate Vacuum Environments as a Means of Increasing the Collection Efficiencies and Operating Temperatures of Flat-Plate Solar Collectors”. Solar Energy, 1975, 17,151-158. [2] N. Benz and T. Beikircher., “High Efficiency Evacuated Flat-Plate Solar Collector for Process Steam Production”, Solar Energy. 1999, 65, 111-118. [3] P. Henshall, R. Moss, F. Arya, P. Eames, S. Shire and T. Hyde., “An Evacuated Enclosure Design for Solar Thermal Energy Applications”, In: Proceeding of Grand Renewable Energy 2014, July, Tokyo, Japan. [4] F. Arya, T. Hyde, P. Henshall, P. Eames, R. Moss and S. Shire., “Fabrication and Characterisation of Slim Flat Vacuum Panels Suitable for Solar Applications”, In Proceedings of EuroSun 2014, September, Aix-les-Bains, France. [5] T. Hyde, P.W. Griffiths, P.C. Eames and B. Norton., “Development of a novel low temperature edge seal for evacuated glazing”, In: Proceedings of World Renewable Energy Congress VI, 2000, Brighton, UK. Oxford: Pergamon, pp. 271-274. [6] A. Zacharopoulos, J. D. Mondol, M. Smyth, T. Hyde and V. O'Brien., “State of the art solar simulator with flexible mounting”, In: ISES Solar World Congress, 2009, Johannesburg, South Africa. International Solar Energy Society. 10 pp. [7] P.W. Griffiths, M. Di Leo, P. Cartwright, P. C. Eames, Yianoulis, G. Leftheriotis and B. Norton., “Fabrication of Evacuated Glazing at Low Temperature”, Solar Energy, 63(4), 1998, pp. 243-249.",
year = "2015",
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isbn = "978-3-98120538-1",
pages = "256--263",
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Arya, F, Hyde, T, Henshall, P, Eames, P, Moss, R, Shire, S & Zacharopoulos, A 2015, Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. in Unknown Host Publication. pp. 256-263, 10th Conference on Advanced Building Skins 3-4 November 2015, Bern, Switzerland, 15/09/15.

Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. / Arya, Farid; Hyde, Trevor; Henshall, Paul; Eames, Phillip; Moss, Roger; Shire, Stan; Zacharopoulos, Aggelos.

Unknown Host Publication. 2015. p. 256-263.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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AU - Arya, Farid

AU - Hyde, Trevor

AU - Henshall, Paul

AU - Eames, Phillip

AU - Moss, Roger

AU - Shire, Stan

AU - Zacharopoulos, Aggelos

N1 - Reference text: [1] C. Eaton and H. Blum., “The Use of Moderate Vacuum Environments as a Means of Increasing the Collection Efficiencies and Operating Temperatures of Flat-Plate Solar Collectors”. Solar Energy, 1975, 17,151-158. [2] N. Benz and T. Beikircher., “High Efficiency Evacuated Flat-Plate Solar Collector for Process Steam Production”, Solar Energy. 1999, 65, 111-118. [3] P. Henshall, R. Moss, F. Arya, P. Eames, S. Shire and T. Hyde., “An Evacuated Enclosure Design for Solar Thermal Energy Applications”, In: Proceeding of Grand Renewable Energy 2014, July, Tokyo, Japan. [4] F. Arya, T. Hyde, P. Henshall, P. Eames, R. Moss and S. Shire., “Fabrication and Characterisation of Slim Flat Vacuum Panels Suitable for Solar Applications”, In Proceedings of EuroSun 2014, September, Aix-les-Bains, France. [5] T. Hyde, P.W. Griffiths, P.C. Eames and B. Norton., “Development of a novel low temperature edge seal for evacuated glazing”, In: Proceedings of World Renewable Energy Congress VI, 2000, Brighton, UK. Oxford: Pergamon, pp. 271-274. [6] A. Zacharopoulos, J. D. Mondol, M. Smyth, T. Hyde and V. O'Brien., “State of the art solar simulator with flexible mounting”, In: ISES Solar World Congress, 2009, Johannesburg, South Africa. International Solar Energy Society. 10 pp. [7] P.W. Griffiths, M. Di Leo, P. Cartwright, P. C. Eames, Yianoulis, G. Leftheriotis and B. Norton., “Fabrication of Evacuated Glazing at Low Temperature”, Solar Energy, 63(4), 1998, pp. 243-249.

PY - 2015/9/15

Y1 - 2015/9/15

N2 - 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

AB - 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

KW - Evacuated Glass Enclosure

KW - Vacuum Insulation

KW - Evacuated Co-centric tube

KW - Solar thermal

KW - Solar simulator

KW - Infrared Thermography

M3 - Conference contribution

SN - 978-3-98120538-1

SP - 256

EP - 263

BT - Unknown Host Publication

ER -

Arya F, Hyde T, Henshall P, Eames P, Moss R, Shire S et al. Thermal Analysis of Flat Evacuated Glass Enclosure for Building Integrated Solar Applications. In Unknown Host Publication. 2015. p. 256-263