Measured thermal & daylight performance of an evacuated glazing using an outdoor test cell

Aritra Ghosh; Brian Norton; Aidan Duffy

doi:10.1016/j.apenergy.2016.05.118

Measured thermal & daylight performance of an evacuated glazing using an outdoor test cell

Aritra Ghosh, Brian Norton, Aidan Duffy

School of Transport and Civil Engineering

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

Abstract

Outdoor characterization of thermal and daylight performance of an evacuated (vacuum) glazing has been conducted using an outdoor test cell for clear sunny day, intermittent day and overcast days. An average overall heat transfer coefficient of 1.4 W/m² K was found for vacuum glazing. Solar heat gain coefficient of vacuum glazing varied between 0.58 and 0.19. Vacuum glazing has potential to reduce 53% heat loss compared to a same area of double-glazing while offering nearly equal amount of heat gain. Internal daylight illuminance was found to be similar to double glazing indicating that the presence of small pillars inside vacuum glazing had no significant visual impact.

Original language	English
Pages (from-to)	196-203
Number of pages	8
Journal	Applied Energy
Volume	177
DOIs	https://doi.org/10.1016/j.apenergy.2016.05.118
Publication status	Published - 1 Sep 2016

Keywords

Glazing
Overall heat transfer coefficients
SHGC
Test cell
Vacuum

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10.1016/j.apenergy.2016.05.118

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title = "Measured thermal & daylight performance of an evacuated glazing using an outdoor test cell",

abstract = "Outdoor characterization of thermal and daylight performance of an evacuated (vacuum) glazing has been conducted using an outdoor test cell for clear sunny day, intermittent day and overcast days. An average overall heat transfer coefficient of 1.4 W/m2 K was found for vacuum glazing. Solar heat gain coefficient of vacuum glazing varied between 0.58 and 0.19. Vacuum glazing has potential to reduce 53% heat loss compared to a same area of double-glazing while offering nearly equal amount of heat gain. Internal daylight illuminance was found to be similar to double glazing indicating that the presence of small pillars inside vacuum glazing had no significant visual impact.",

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N2 - Outdoor characterization of thermal and daylight performance of an evacuated (vacuum) glazing has been conducted using an outdoor test cell for clear sunny day, intermittent day and overcast days. An average overall heat transfer coefficient of 1.4 W/m2 K was found for vacuum glazing. Solar heat gain coefficient of vacuum glazing varied between 0.58 and 0.19. Vacuum glazing has potential to reduce 53% heat loss compared to a same area of double-glazing while offering nearly equal amount of heat gain. Internal daylight illuminance was found to be similar to double glazing indicating that the presence of small pillars inside vacuum glazing had no significant visual impact.

AB - Outdoor characterization of thermal and daylight performance of an evacuated (vacuum) glazing has been conducted using an outdoor test cell for clear sunny day, intermittent day and overcast days. An average overall heat transfer coefficient of 1.4 W/m2 K was found for vacuum glazing. Solar heat gain coefficient of vacuum glazing varied between 0.58 and 0.19. Vacuum glazing has potential to reduce 53% heat loss compared to a same area of double-glazing while offering nearly equal amount of heat gain. Internal daylight illuminance was found to be similar to double glazing indicating that the presence of small pillars inside vacuum glazing had no significant visual impact.

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Measured thermal & daylight performance of an evacuated glazing using an outdoor test cell

Abstract

Keywords

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