An evacuated enclosure design for solar thermal energy applications

Paul Henshall; Roger Moss; Farid Arya; Phillip Eames; Stan Shire; Trevor Hyde

An evacuated enclosure design for solar thermal energy applications

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

Flat-plate solar thermal collector technology when coupled with vacuum enclosure technology has potential to supply clean energy efficiently for use in applications including residential water and space heating. This paper focuses on the design of vacuum enclosures for flat-plate solar collectors with specific reference to vacuum enclosures designed for thin micro-channel solar absorber plates (thickness <10mm). The expectations, requirements and applications of these solar collectors are discussed along with a description of an enclosure concept under consideration. Potential seal materials are identified and their limitations discussed. Finite elementmodelling results are presented and conclusions made regarding design parameter selection.

Original language	English
Title of host publication	Unknown Host Publication
Publisher	Grand Renewable Energy
Number of pages	4
Publication status	Accepted/In press - 15 Mar 2014
Event	Grand Renewable Energy 2014 (GRE2014) - International Conference and Exhibition, Tokyo, Japan Duration: 15 Mar 2014 → …

Conference

Conference	Grand Renewable Energy 2014 (GRE2014)
Period	15/03/14 → …

Bibliographical note

Reference text: [1] E. Zambolin and D. Del Col, “Experimental analysis of
thermal performance of flat plate and evacuated tube solar
collectors in stationary standard and daily conditions”, Solar
Energy. 84, 2010, pp. 1382-1396.
[2] N. Benz and T. Beikircher, “High efficiency evacuated flatplate
solar collector for process steam production”, Solar Energy.
65, 1999, pp. 111-118.
[3] 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. 17, 1975, pp 151-158.
[4] P. Eames, “Vacuum glazing, current performance and future
prospects”, Vacuum. 82, 2008, pp 717-722.
[5] J. Duffie and W. Beckman, Solar Engineering of Thermal
Processes, 3rd Edition, Wiley, 2006.
[6] Thermomax technical design guide, Kingspan
[7] S. Kalogirou, “The potential of solar industrial process heat
applications”, Applied Energy, 76, 2003, pp. 337-361.
[8] Hitachi, “220-300C low-melting glass for hermetic sealing”,
2012, Press release
[9] S-Bond Technologies, < http://www.sbond.
com/products/>, 2014.
[10] R. Collins and A. Fischer-Cripps, “Design of support arrays
in flat evacuated windows”, Australian Journal of Physics. 44,
1991, pp 545-63.
[11] A. Fischer-Cripps, “The probability of Hertzian fracture”,
Journal of Materials Science, vol. 29, 1994, pp. 2216-2230.
[12] D. Chen, Thermal stresses in laminated beams, Journal of
Thermal Stresses, vol. 5, issue 1, Jan 1982
[13] S.S. Manson, Thermal stress and low-cycle fatigue,
McGraw-Hill, 1966

Keywords

renewable energy
solar thermal
vacuum

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Henshall Grand Renewables 2014 v9Final published version, 401 KB

Cite this

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title = "An evacuated enclosure design for solar thermal energy applications",

abstract = "Flat-plate solar thermal collector technology when coupled with vacuum enclosure technology has potential to supply clean energy efficiently for use in applications including residential water and space heating. This paper focuses on the design of vacuum enclosures for flat-plate solar collectors with specific reference to vacuum enclosures designed for thin micro-channel solar absorber plates (thickness <10mm). The expectations, requirements and applications of these solar collectors are discussed along with a description of an enclosure concept under consideration. Potential seal materials are identified and their limitations discussed. Finite elementmodelling results are presented and conclusions made regarding design parameter selection.",

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note = "Reference text: [1] E. Zambolin and D. Del Col, “Experimental analysis of thermal performance of flat plate and evacuated tube solar collectors in stationary standard and daily conditions”, Solar Energy. 84, 2010, pp. 1382-1396. [2] N. Benz and T. Beikircher, “High efficiency evacuated flatplate solar collector for process steam production”, Solar Energy. 65, 1999, pp. 111-118. [3] 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. 17, 1975, pp 151-158. [4] P. Eames, “Vacuum glazing, current performance and future prospects”, Vacuum. 82, 2008, pp 717-722. [5] J. Duffie and W. Beckman, Solar Engineering of Thermal Processes, 3rd Edition, Wiley, 2006. [6] Thermomax technical design guide, Kingspan [7] S. Kalogirou, “The potential of solar industrial process heat applications”, Applied Energy, 76, 2003, pp. 337-361. [8] Hitachi, “220-300C low-melting glass for hermetic sealing”, 2012, Press release [9] S-Bond Technologies, < http://www.sbond. com/products/>, 2014. [10] R. Collins and A. Fischer-Cripps, “Design of support arrays in flat evacuated windows”, Australian Journal of Physics. 44, 1991, pp 545-63. [11] A. Fischer-Cripps, “The probability of Hertzian fracture”, Journal of Materials Science, vol. 29, 1994, pp. 2216-2230. [12] D. Chen, Thermal stresses in laminated beams, Journal of Thermal Stresses, vol. 5, issue 1, Jan 1982 [13] S.S. Manson, Thermal stress and low-cycle fatigue, McGraw-Hill, 1966; Grand Renewable Energy 2014 (GRE2014) ; Conference date: 15-03-2014",

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N2 - Flat-plate solar thermal collector technology when coupled with vacuum enclosure technology has potential to supply clean energy efficiently for use in applications including residential water and space heating. This paper focuses on the design of vacuum enclosures for flat-plate solar collectors with specific reference to vacuum enclosures designed for thin micro-channel solar absorber plates (thickness <10mm). The expectations, requirements and applications of these solar collectors are discussed along with a description of an enclosure concept under consideration. Potential seal materials are identified and their limitations discussed. Finite elementmodelling results are presented and conclusions made regarding design parameter selection.

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ER -

An evacuated enclosure design for solar thermal energy applications

Abstract

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Bibliographical note

Keywords

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