Effect of glass thickness on the thermal performance of evacuated glazing

Yueping Fang; Philip Eames; Brian Norton

doi:10.1016/j.solener.2006.05.004

Effect of glass thickness on the thermal performance of evacuated glazing

Yueping Fang, Philip Eames, Brian Norton

Research output: Contribution to journal › Article › peer-review

36 Citations (Scopus)

Abstract

Flat evacuated glazing consists of two plane glass panes separated by a narrow internal evacuated space. Separation of the space is maintained by an array of support pillars typically 0.32mm in diameter and 0.12mm high arranged on a regular square grid with an inter-pillar separation of up to 40mm. A detailed three-dimensional finite volume model has been employed to determine the variation of thermal performance of an evacuated glazing as a function of glass pane thickness. It was predicted that for evacuated glazing of dimensions of 0.3m by 0.3m and 0.5m by 0.5m, reducing glass pane thickness gave improved thermal performance. For evacuated glazings with dimensions of 1m by 1m, the opposite was predicted.

Original language	English
Pages (from-to)	395-404
Journal	Solar Energy
Volume	81
DOIs	https://doi.org/10.1016/j.solener.2006.05.004
Publication status	Published (in print/issue) - Mar 2007

Bibliographical note

Reference text: Anon, 1992. A PC program WINDOW 4.0 for analysing window thermal performance. Lawrence
Berkeley Laboratory Berkeley, CA94720 USA.
ASTM, 1991. Standard procedures for determining the steady state thermal
transmittance of fenestration systems, ASTM Standard E 1423-91. In 1994
Annual Book of ASTM Standard 04.07. American Society of Testing and
Materials, pp.1160-1165.
Collins R.E., Robinson S.J., 1991. Evacuated glazing. Solar Energy 47, 27-38.
Collins R.E., Simko T.M., 1998. Current status of the science and technology of
vacuum glazing. Solar Energy 62, 189-213.
Eames P.C., Norton B., 1993. A validated unified model for optics and heat transfer in line-axis
concentrating solar energy collectors. Solar Energy 50, 339-355.
Fang Y., Eames P.C., Hyde T.J., Norton B., 2005. Complex multimaterial insulating frames for
windows with evacuated glazing. Solar Energy 79 245-261.
Griffiths P.W., Norton B., Eames P.C., Lo S.N.G., 1996. Detailed Simulation of
Heat Transfer Across Evacuated Glazing, Building Research Information 24,
141-147.
Griffiths P.W., Leo M.Di, Cartwright P., Eames P.C. , Yianoulis P., Leftheriotis G
and Norton B. (1998) Fabrication of Evacuated Glazing at Low Temperature,
Solar Energy 63, 243-249.
Griffiths P. W., Eames C. P., Hyde J. T., Fang Y., Norton B., 2006. Experimental
characterization and detailed performance prediction of a vacuum glazing system
fabricated with a low temperature metal edge seal, using a validated computer model,
ASME Journal of Solar Energy Engineering, 128, 2, 199-203.
Robinson S.J., Collins R.E., 1989. Evacuated window  theory and practice. In
ISES Solar World Congress, Internal Solar Energy Society, Kobe, Japan.
Simko T.M., 1996. Heat transfer process and stresses in vacuum glazing. Ph.D.
thesis, University of Sydney.
Wilson C.F., Simko T.M., Collins R.E., 1998. Heat Conduction Through The
Support Pillars in Vacuum Glazing, Solar Energy 63, 393-406.

Keywords

Evacuated glazing
thermal performance
glass thickness
finite volume model

Access to Document

10.1016/j.solener.2006.05.004

Cite this

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title = "Effect of glass thickness on the thermal performance of evacuated glazing",

abstract = "Flat evacuated glazing consists of two plane glass panes separated by a narrow internal evacuated space. Separation of the space is maintained by an array of support pillars typically 0.32mm in diameter and 0.12mm high arranged on a regular square grid with an inter-pillar separation of up to 40mm. A detailed three-dimensional finite volume model has been employed to determine the variation of thermal performance of an evacuated glazing as a function of glass pane thickness. It was predicted that for evacuated glazing of dimensions of 0.3m by 0.3m and 0.5m by 0.5m, reducing glass pane thickness gave improved thermal performance. For evacuated glazings with dimensions of 1m by 1m, the opposite was predicted.",

keywords = "Evacuated glazing, thermal performance, glass thickness, finite volume model",

author = "Yueping Fang and Philip Eames and Brian Norton",

note = "Reference text: Anon, 1992. A PC program WINDOW 4.0 for analysing window thermal performance. Lawrence Berkeley Laboratory Berkeley, CA94720 USA. ASTM, 1991. Standard procedures for determining the steady state thermal transmittance of fenestration systems, ASTM Standard E 1423-91. In 1994 Annual Book of ASTM Standard 04.07. American Society of Testing and Materials, pp.1160-1165. Collins R.E., Robinson S.J., 1991. Evacuated glazing. Solar Energy 47, 27-38. Collins R.E., Simko T.M., 1998. Current status of the science and technology of vacuum glazing. Solar Energy 62, 189-213. Eames P.C., Norton B., 1993. A validated unified model for optics and heat transfer in line-axis concentrating solar energy collectors. Solar Energy 50, 339-355. Fang Y., Eames P.C., Hyde T.J., Norton B., 2005. Complex multimaterial insulating frames for windows with evacuated glazing. Solar Energy 79 245-261. Griffiths P.W., Norton B., Eames P.C., Lo S.N.G., 1996. Detailed Simulation of Heat Transfer Across Evacuated Glazing, Building Research Information 24, 141-147. Griffiths P.W., Leo M.Di, Cartwright P., Eames P.C. , Yianoulis P., Leftheriotis G and Norton B. (1998) Fabrication of Evacuated Glazing at Low Temperature, Solar Energy 63, 243-249. Griffiths P. W., Eames C. P., Hyde J. T., Fang Y., Norton B., 2006. Experimental characterization and detailed performance prediction of a vacuum glazing system fabricated with a low temperature metal edge seal, using a validated computer model, ASME Journal of Solar Energy Engineering, 128, 2, 199-203. Robinson S.J., Collins R.E., 1989. Evacuated window  theory and practice. In ISES Solar World Congress, Internal Solar Energy Society, Kobe, Japan. Simko T.M., 1996. Heat transfer process and stresses in vacuum glazing. Ph.D. thesis, University of Sydney. Wilson C.F., Simko T.M., Collins R.E., 1998. Heat Conduction Through The Support Pillars in Vacuum Glazing, Solar Energy 63, 393-406.",

year = "2007",

month = mar,

doi = "10.1016/j.solener.2006.05.004",

language = "English",

volume = "81",

pages = "395--404",

journal = "Solar Energy",

publisher = "Elsevier",

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T1 - Effect of glass thickness on the thermal performance of evacuated glazing

AU - Fang, Yueping

AU - Eames, Philip

AU - Norton, Brian

N1 - Reference text: Anon, 1992. A PC program WINDOW 4.0 for analysing window thermal performance. Lawrence Berkeley Laboratory Berkeley, CA94720 USA. ASTM, 1991. Standard procedures for determining the steady state thermal transmittance of fenestration systems, ASTM Standard E 1423-91. In 1994 Annual Book of ASTM Standard 04.07. American Society of Testing and Materials, pp.1160-1165. Collins R.E., Robinson S.J., 1991. Evacuated glazing. Solar Energy 47, 27-38. Collins R.E., Simko T.M., 1998. Current status of the science and technology of vacuum glazing. Solar Energy 62, 189-213. Eames P.C., Norton B., 1993. A validated unified model for optics and heat transfer in line-axis concentrating solar energy collectors. Solar Energy 50, 339-355. Fang Y., Eames P.C., Hyde T.J., Norton B., 2005. Complex multimaterial insulating frames for windows with evacuated glazing. Solar Energy 79 245-261. Griffiths P.W., Norton B., Eames P.C., Lo S.N.G., 1996. Detailed Simulation of Heat Transfer Across Evacuated Glazing, Building Research Information 24, 141-147. Griffiths P.W., Leo M.Di, Cartwright P., Eames P.C. , Yianoulis P., Leftheriotis G and Norton B. (1998) Fabrication of Evacuated Glazing at Low Temperature, Solar Energy 63, 243-249. Griffiths P. W., Eames C. P., Hyde J. T., Fang Y., Norton B., 2006. Experimental characterization and detailed performance prediction of a vacuum glazing system fabricated with a low temperature metal edge seal, using a validated computer model, ASME Journal of Solar Energy Engineering, 128, 2, 199-203. Robinson S.J., Collins R.E., 1989. Evacuated window  theory and practice. In ISES Solar World Congress, Internal Solar Energy Society, Kobe, Japan. Simko T.M., 1996. Heat transfer process and stresses in vacuum glazing. Ph.D. thesis, University of Sydney. Wilson C.F., Simko T.M., Collins R.E., 1998. Heat Conduction Through The Support Pillars in Vacuum Glazing, Solar Energy 63, 393-406.

PY - 2007/3

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N2 - Flat evacuated glazing consists of two plane glass panes separated by a narrow internal evacuated space. Separation of the space is maintained by an array of support pillars typically 0.32mm in diameter and 0.12mm high arranged on a regular square grid with an inter-pillar separation of up to 40mm. A detailed three-dimensional finite volume model has been employed to determine the variation of thermal performance of an evacuated glazing as a function of glass pane thickness. It was predicted that for evacuated glazing of dimensions of 0.3m by 0.3m and 0.5m by 0.5m, reducing glass pane thickness gave improved thermal performance. For evacuated glazings with dimensions of 1m by 1m, the opposite was predicted.

AB - Flat evacuated glazing consists of two plane glass panes separated by a narrow internal evacuated space. Separation of the space is maintained by an array of support pillars typically 0.32mm in diameter and 0.12mm high arranged on a regular square grid with an inter-pillar separation of up to 40mm. A detailed three-dimensional finite volume model has been employed to determine the variation of thermal performance of an evacuated glazing as a function of glass pane thickness. It was predicted that for evacuated glazing of dimensions of 0.3m by 0.3m and 0.5m by 0.5m, reducing glass pane thickness gave improved thermal performance. For evacuated glazings with dimensions of 1m by 1m, the opposite was predicted.

KW - Evacuated glazing

KW - thermal performance

KW - glass thickness

KW - finite volume model

U2 - 10.1016/j.solener.2006.05.004

DO - 10.1016/j.solener.2006.05.004

M3 - Article

VL - 81

SP - 395

EP - 404

JO - Solar Energy

JF - Solar Energy

ER -

Effect of glass thickness on the thermal performance of evacuated glazing

Abstract

Bibliographical note

Keywords

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