20131018 safety in lighting design for indoor swimming pool

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Safety in Lighting Design for Indoor Swimming Pool Ir Thomas Chan Dr Ernest Tsang 1 Wednesday, 16 October, 13

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Designs of indoor lighting environment commonly adopt the parameters of the combination of indoor illuminance level, daylight factor, and exposed view to exterior, uniformity and glare indexes. These references work extremely well in most of the building designs. However, when it comes to indoor swimming pools design, simply adopting the above indexes cannot ensure a safety environment for swimmers and other end-users as water itself is a good reflector of light from the reflectance off the walls and ceilings and from the daylight through windows and roofs. The reflected lights or glares are often transient. The situation is dynamic as the surface of water moves with wakes. These factors post new challenges for the indoor lighting design in ensuring lifeguards to carry out their duties against momentary glares of blinding effect. A comprehensive study was conducted to identify the cause of different physical phenomenon related to reflection and glare found in indoor swimming pools. In this paper, the implications of several design parameters are discussed. Some artificial lighting and daylighting designs related to the best practices of indoor swimming pools are also covered.

TRANSCRIPT

Page 1: 20131018 Safety in Lighting Design for Indoor Swimming Pool

Safety in Lighting Design for Indoor Swimming Pool

Ir Thomas ChanDr Ernest Tsang

1Wednesday, 16 October, 13

Page 2: 20131018 Safety in Lighting Design for Indoor Swimming Pool

More than 3 people die due to

drowning per month

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Page 3: 20131018 Safety in Lighting Design for Indoor Swimming Pool

7% of drowning accidents happened in Swimming Pool

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What is the most important?

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Energy Efficiency?

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Lighting effect?6Wednesday, 16 October, 13

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Horizontal and Vertical

Illuminance level12Wednesday, 16 October, 13

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Uniformity

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Glare

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UnderwaterLighting

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Daylight Factor

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Daylight Glare index

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Skylight

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Glazing Material

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Daylighting System

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0

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0 10 20 30 40 50 60 70 80 90

Ref

lect

ance

Angle of Incidence

Rs Rp R

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Lighting Simulation

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Expertise and deep

understanding

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Searching for new performance index

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Alive Dead

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Let me know more from you

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