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A fast daylighting method to optimize opening configurations in building design

Daylighting plays a very important role for energy saving in sustainable building, therefore, setting the optimal shapes and positions of the openings is crucial for daylighting availability. On the other hand, computing daylighting for climate-based data is a time-consuming task involving large data set and is not well suited for optimization approaches. In this paper we propose a new and fast daylighting method that allows to perform opening shape optimizations. The base of our method is to model each element of an opening surface as a pinhole and then formulate a compact irradiance-based representation to ease global illumination calculations. We use the UDI metric to evaluate our method, on an office-based model, for different orientations and different geographical locations, showing that optimal windows shapes can be obtained in short times. Our method also provides an efficient way to analyze the impact of climate-based data on the shape of the openings, as they could be modified interactively

The work was supported by project FSE 1 2014 1 102344 from Agencia Nacional de Investigaci贸n e Innovaci贸n (ANII, Uruguay)and TIN2014-52211-C2-2-R project from Ministerio de Econom铆ay Competitividad, Spain

Elsevier

Manager: Ministerio de Econom铆a y Competitividad (Espanya)
Author: Fern谩ndez, Eduardo
Beckers, Benoit
Besuievsky, Gonzalo
Abstract: Daylighting plays a very important role for energy saving in sustainable building, therefore, setting the optimal shapes and positions of the openings is crucial for daylighting availability. On the other hand, computing daylighting for climate-based data is a time-consuming task involving large data set and is not well suited for optimization approaches. In this paper we propose a new and fast daylighting method that allows to perform opening shape optimizations. The base of our method is to model each element of an opening surface as a pinhole and then formulate a compact irradiance-based representation to ease global illumination calculations. We use the UDI metric to evaluate our method, on an office-based model, for different orientations and different geographical locations, showing that optimal windows shapes can be obtained in short times. Our method also provides an efficient way to analyze the impact of climate-based data on the shape of the openings, as they could be modified interactively
The work was supported by project FSE 1 2014 1 102344 from Agencia Nacional de Investigaci贸n e Innovaci贸n (ANII, Uruguay)and TIN2014-52211-C2-2-R project from Ministerio de Econom铆ay Competitividad, Spain
Document access: http://hdl.handle.net/2072/298544
Language: eng
Publisher: Elsevier
Rights: Tots els drets reservats
Subject: Il路luminaci贸 natural
Daylighting
Infografia
Computer graphics
Title: A fast daylighting method to optimize opening configurations in building design
Type: info:eu-repo/semantics/article
Repository: Recercat

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