Daylighting performance and glare calculation of a suspended particle device switchable glazing

Aritra Ghosh; Brian Norton; Aidan Duffy

doi:10.1016/j.solener.2016.02.051

Daylighting performance and glare calculation of a suspended particle device switchable glazing

Aritra Ghosh, Brian Norton, Aidan Duffy

School of Transport and Civil Engineering

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

64 Citations (Scopus)

Abstract

The daylighting performance of a suspended particle device (SPD) switchable glazing has been evaluated using an unfurnished outdoor south facing test cell with glazing to wall ratio of 1:8. Interior illuminance levels were determined using useful daylight illuminance level (UDI) for clear sunny, intermittent cloudy and overcast cloudy days. Daylight provided by an SPD and a same area of double-glazing were compared. Daylight glare indexes (DGI_N) and daylight factor (DF) were calculated for SPD "opaque" and "transparent" states. An electrically actuated suspended particle device switchable glazing with transparency that varied between 5% and 55% was found to control daylight glare.

Original language	English
Pages (from-to)	114-128
Number of pages	15
Journal	Solar Energy
Volume	132
DOIs	https://doi.org/10.1016/j.solener.2016.02.051
Publication status	Published - 1 Jul 2016

Keywords

DF
DGI
Electrochromic
Liquid crystal
SPD glazing
UDI

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10.1016/j.solener.2016.02.051

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title = "Daylighting performance and glare calculation of a suspended particle device switchable glazing",

abstract = "The daylighting performance of a suspended particle device (SPD) switchable glazing has been evaluated using an unfurnished outdoor south facing test cell with glazing to wall ratio of 1:8. Interior illuminance levels were determined using useful daylight illuminance level (UDI) for clear sunny, intermittent cloudy and overcast cloudy days. Daylight provided by an SPD and a same area of double-glazing were compared. Daylight glare indexes (DGIN) and daylight factor (DF) were calculated for SPD {"}opaque{"} and {"}transparent{"} states. An electrically actuated suspended particle device switchable glazing with transparency that varied between 5% and 55% was found to control daylight glare.",

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author = "Aritra Ghosh and Brian Norton and Aidan Duffy",

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AU - Duffy, Aidan

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N2 - The daylighting performance of a suspended particle device (SPD) switchable glazing has been evaluated using an unfurnished outdoor south facing test cell with glazing to wall ratio of 1:8. Interior illuminance levels were determined using useful daylight illuminance level (UDI) for clear sunny, intermittent cloudy and overcast cloudy days. Daylight provided by an SPD and a same area of double-glazing were compared. Daylight glare indexes (DGIN) and daylight factor (DF) were calculated for SPD "opaque" and "transparent" states. An electrically actuated suspended particle device switchable glazing with transparency that varied between 5% and 55% was found to control daylight glare.

AB - The daylighting performance of a suspended particle device (SPD) switchable glazing has been evaluated using an unfurnished outdoor south facing test cell with glazing to wall ratio of 1:8. Interior illuminance levels were determined using useful daylight illuminance level (UDI) for clear sunny, intermittent cloudy and overcast cloudy days. Daylight provided by an SPD and a same area of double-glazing were compared. Daylight glare indexes (DGIN) and daylight factor (DF) were calculated for SPD "opaque" and "transparent" states. An electrically actuated suspended particle device switchable glazing with transparency that varied between 5% and 55% was found to control daylight glare.

KW - DF

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VL - 132

SP - 114

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JO - Solar Energy

JF - Solar Energy

ER -

Daylighting performance and glare calculation of a suspended particle device switchable glazing

Abstract

Keywords

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