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Carrier, Karen; Ubbelohde, M. The role of daylighting in LEEDTM certification: a comparative evaluation of documentation methods. 2005 SOLAR WORLD CONGRESS, 2005, Orlando, Flórida.
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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

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Abstract

In this paper, the LEEDTM Daylighting Credit (IEQ 8.1) is examined with reference to currently accepted calculation techniques in daylighting. A review of the derivation and use of the Daylight Factor requirement reveals that the LEEDTM use of the metric is not well defined or constrained to the useful scientific understanding of the term. The Apple Flagship Store in Los Angeles, California, is used to develop a comparative example for four compliance documentation procedures. The quantitative daylight factor results from the LEEDTM spreadsheet calculations are presented in detail and compared with results from a RADIANCE computer simulation, physical model testing in a calibrated mirror box sky, and on-site measurements. The conclusions firmly indicate that the LEEDTM spreadsheet method significantly over-predicts the levels of daylight due to problematic modifications in the Daylight Factor rules of thumb developed by R.G. Hopkinson. The RADIANCE and physical models are both in line with expected levels and distributions of daylight intensity, while the on-site measurements are similar to the software and physical model simulations, but skewed by changing exterior sky conditions.
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