Optimized indoor daylight for tropical dense urban environments

Studies using metrics related to dynamic sky conditions for indoor daylight performance assessment in urban environment are rare in tropical latitudes. This study applied one of these metrics, the spatial Daylight Autonomy (sDA 300,50% ≥75%, IES LM 83-12) for Cuiabá (15ºS, 56ºW, Brazil), a savanna c...

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Auteurs principaux:	Santos, Iara Gonçalves dos, Auer, Thomas, Souza, Roberta Vieira Gonçalves de
Format:	Online
Langue:	eng
Publié:	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído 2017
Accès en ligne:	https://seer.ufrgs.br/ambienteconstruido/article/view/69631
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id	ojs-article-69631
record_format	ojs
spelling	ojs-article-696312017-06-30T15:35:30Z Optimized indoor daylight for tropical dense urban environments Santos, Iara Gonçalves dos Auer, Thomas Souza, Roberta Vieira Gonçalves de daylight; illuminance; computer simulation; spatial Daylight Autonomy Studies using metrics related to dynamic sky conditions for indoor daylight performance assessment in urban environment are rare in tropical latitudes. This study applied one of these metrics, the spatial Daylight Autonomy (sDA 300,50% ≥75%, IES LM 83-12) for Cuiabá (15ºS, 56ºW, Brazil), a savanna climate city with a high frequency of partly cloudy skies. Parametric simulations were used to investigate the availability of daylight in dense urban areas. So daylight conditions inside a reference room with varied depths located within a continuous urban canyon were simulated with Radiance/Daysim in Grasshopper/Honeybee. Dimensions of the street and heights of front buildings (obstructions) are also varied in order to observe the relation between the sky angle and the sDA, for the four main cardinal directions. The results of regression analysis for this case study showed that among all evaluated parameters, room depth tended to be the most relevant for the optimization of indoor daylight. Finally, limitations of this approach and opportunities for further investigations were discussed. ANTAC - Associação Nacional de Tecnologia do Ambiente Construído CNPq (Science without Borders) TUM Transsolar Energietechnik GmbH CEFET-MG 2017-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://seer.ufrgs.br/ambienteconstruido/article/view/69631 Ambiente Construído; v. 17, n. 3 (2017); 87-102 Ambiente Construído; v. 17, n. 3 (2017); 87-102 Ambiente Construído; v. 17, n. 3 (2017); 87-102 1678-8621 1415-8876 eng https://seer.ufrgs.br/ambienteconstruido/article/view/69631/42240 Direitos autorais 2017 Ambiente Construído https://creativecommons.org/licenses/by/4.0
institution	Universidade Federal do Rio Grande do Sul
collection	OJS
language	eng
format	Online
author	Santos, Iara Gonçalves dos Auer, Thomas Souza, Roberta Vieira Gonçalves de
spellingShingle	Santos, Iara Gonçalves dos Auer, Thomas Souza, Roberta Vieira Gonçalves de Optimized indoor daylight for tropical dense urban environments
author_facet	Santos, Iara Gonçalves dos Auer, Thomas Souza, Roberta Vieira Gonçalves de
author_sort	Santos, Iara Gonçalves dos
title	Optimized indoor daylight for tropical dense urban environments
title_short	Optimized indoor daylight for tropical dense urban environments
title_full	Optimized indoor daylight for tropical dense urban environments
title_fullStr	Optimized indoor daylight for tropical dense urban environments
title_full_unstemmed	Optimized indoor daylight for tropical dense urban environments
title_sort	optimized indoor daylight for tropical dense urban environments
description	Studies using metrics related to dynamic sky conditions for indoor daylight performance assessment in urban environment are rare in tropical latitudes. This study applied one of these metrics, the spatial Daylight Autonomy (sDA 300,50% ≥75%, IES LM 83-12) for Cuiabá (15ºS, 56ºW, Brazil), a savanna climate city with a high frequency of partly cloudy skies. Parametric simulations were used to investigate the availability of daylight in dense urban areas. So daylight conditions inside a reference room with varied depths located within a continuous urban canyon were simulated with Radiance/Daysim in Grasshopper/Honeybee. Dimensions of the street and heights of front buildings (obstructions) are also varied in order to observe the relation between the sky angle and the sDA, for the four main cardinal directions. The results of regression analysis for this case study showed that among all evaluated parameters, room depth tended to be the most relevant for the optimization of indoor daylight. Finally, limitations of this approach and opportunities for further investigations were discussed.
publisher	ANTAC - Associação Nacional de Tecnologia do Ambiente Construído
publishDate	2017
url	https://seer.ufrgs.br/ambienteconstruido/article/view/69631
work_keys_str_mv	AT santosiaragoncalvesdos optimizedindoordaylightfortropicaldenseurbanenvironments AT auerthomas optimizedindoordaylightfortropicaldenseurbanenvironments AT souzarobertavieiragoncalvesde optimizedindoordaylightfortropicaldenseurbanenvironments
_version_	1709370606307246080

Optimized indoor daylight for tropical dense urban environments

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