Daylighting performance of subtropical multi-residential towers : simulations tools for design decisions

Garcia Hansen, Veronica, Kennedy, Rosemary J., Sanders, Paul S., & Varendorff, Andrew (2012) Daylighting performance of subtropical multi-residential towers : simulations tools for design decisions. In Biondi, Susana, Jiménez, Cecilia, & Reiser, Juan (Eds.) Proceedings of the 28th International PLEA Conference : Opportunities. Limits and Needs Towards an Environmentally Responsible Architecture, Passive & Low Energy Architecture (PLEA), Lima, Peru, pp. 1-7.

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During an intensive design-led workshop multidisciplinary design teams examined options for a sustainable multi-residential tower on an inner urban site in Brisbane (Australia). The main aim was to demonstrate the key principles of daylight to every habitable room and cross-ventilation to every apartment in the subtropical climate while responding to acceptable yield and price points. The four conceptual design proposals demonstrated a wide range of outcomes, with buildings ranging from 15 to 30 storeys. Daylight Factor (DF), view to the outside, and the avoidance of direct sunlight were the only quantitative and qualitative performance metrics used to implement daylighting to the proposed buildings during the charrette. This paper further assesses the daylighting performance of the four conceptual designs by utilizing Climate-based daylight modeling (CBDM), specifically Daylight Autonomy (DA) and Useful Daylight Illuminance (UDI). Results show that UDI 100-2000lux calculations provide more useful information on the daylighting design than DF. The percentage of the space with a UDI <100-2000lux larger than 50% ranged from 77% to 86% of the time for active occupant behaviour (occupancy from 6am to 6pm). The paper also highlights the architectural features that mostly affect daylighting design in subtropical climates.

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ID Code: 54458
Item Type: Conference Paper
Refereed: Yes
Additional URLs:
Keywords: daylighting, subtropical climate, climate based daylight metrics, high-rise residential towers, sustainable design
Subjects: Australian and New Zealand Standard Research Classification > BUILT ENVIRONMENT AND DESIGN (120000) > ARCHITECTURE (120100)
Divisions: Current > QUT Faculties and Divisions > Creative Industries Faculty
Copyright Owner: Copyright 2012 Please consult the authors.
Deposited On: 31 Oct 2012 22:21
Last Modified: 17 Jul 2017 01:17

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