Solar Energy Gain and Space-Heating Energy Supply Analyses for Solid-Wall Dwelling Retrofitted with the Experimentally Achievable U-value of Novel Triple Vacuum Glazing

Journal article


Memon, S and Eames, PC (2017). Solar Energy Gain and Space-Heating Energy Supply Analyses for Solid-Wall Dwelling Retrofitted with the Experimentally Achievable U-value of Novel Triple Vacuum Glazing. Journal of Daylighting. 4 (1), pp. 15-25.
AuthorsMemon, S and Eames, PC
Abstract

A considerable effort is devoted to devising retrofit solutions for reducing space-heating energy in the domestic sector. Existing UK solid-wall dwellings, which have both heritage values and historic fabric, are being improved but yet they tend to have meagre thermal performance, partly, due to the heat-loss through glazings. This paper takes comparative analyses approach to envisage space-heating supply required in order to maintain thermal comfort temperatures and attainable solar energy gains to households with the retrofit of an experimentally achievable thermal performance of the fabricated sample of triple vacuum glazing to a UK solid-wall dwelling. 3D dynamic thermal models (timely regimes of heating, occupancy, ventilation and internal heat gains) of an externally-insulated solid-wall detached dwelling with a range of existing glazing types along with triple vacuum glazings are modelled. A dramatic decrease of space-heating load and moderate increase of solar gains are resulted with the dwelling of newly achievable triple vacuum glazings (having centre-of-pane U-value of 0.33 Wm-2K-1) compared to conventional glazing types. The space-heating annual cost of single glazed dwellings was minimised to 15.31% (≈USD 90.7) with the retrofit of triple-vacuum glazings. An influence of total heat-loss through the fabric of solid-wall dwelling was analysed with steady-state calculations which indicates a fall of 10.23% with triple vacuum glazings compared to single glazings.

KeywordsVacuum glazing; Solar energy; Thermal modelling; Energy savings
Year2017
JournalJournal of Daylighting
Journal citation4 (1), pp. 15-25
PublisherSolarLits
ISSN2383-8701
Digital Object Identifier (DOI)doi:10.15627/jd.2017.2
Publication dates
Print07 Feb 2017
Publication process dates
Deposited13 Feb 2017
Accepted15 Jan 2017
Publisher's version
License
CC BY 4.0
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https://openresearch.lsbu.ac.uk/item/8707x

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