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Cheung, K. P et al. Solar design of buildings by using light: duty universal heliodon. In: CONFERENCE ON PASSIVE AND LOW ENERGY ARCHITECTURE, 20., 2003, Santiago do Chile. Anais... Santiago do Chile, 2003.
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Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
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Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

Abstract

Solar design is becoming a very important part in architectural design. Heliodons are physical tools used to study sunlight effects on buildings by arranging a suitable light to impinge onto physical building models. There are heliodons [Dufton BECKETT 1931, PEC Heliodon 1993, Cheung 1999] for which the building models have to be tilted and rotated. There are also heliodons for which the building models can remain stationary and horizontal. [Olgyay1957, Lechner 1993, Szokolay 1996, Cheung 2000]. These heliodons were basically developed for operation in a laboratory, using artificial lights as the light source. They use traditional tungsten lamps, or quartz lamps, or spot lights, to represent the selected locations of the “sun”. They inherit errors, primarily in the parallelity of light, in heliodon operation. Added to these heliodons (for which the models were tilted) were the use of a “shade dial” [Olgyay1957], and sundials [Robbins 1986], mounted on building models, and a systematically designed light duty plastic heliodon [Cheung 1996], for testing the building models outdoor using the actual sunlight as the light source. These heliodons have different advantages and limitations. But the systematically designed light duty aluminium heliodon, developed on the basis of its earlier prototype [Cheung 1996a], has been used by several architects in their design studios, with very favourable feedback. A spot light is used as the light source for testing the models indoor. Cases of solar building design using this heliodon are reported in this paper, with suggestions made on further enhancement of the heliodon.
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