The approach to daylighting by scale models and sun and sky simulators: A case study for different shading systems

Aghemo, Chiara; Pellegrino, Anna; Verso, Valerio Roberto Maria Lo

doi:10.1016/j.buildenv.2007.01.020

Cited by 42 publications

(26 citation statements)

References 8 publications

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“…Light shelves perform pretty well for the southern orientation, both in terms of daylight, causing a unified light distribution, and visual comfort, reducing the number of hours of visual disturbances. Similar studies support these results [9,11,13,16,[49][50][51]. In addition to causing a unified distribution of daylight, light shelves can act as shading; they overshadow half of the window, which does not increase the cooling load in summer nor prevent sunlight from entering in winter.…”

Section: Discussionsupporting

confidence: 72%

Investigating the Influence of Light Shelf Geometry Parameters on Daylight Performance and Visual Comfort, a Case Study of Educational Space in Tehran, Iran

Moazzeni

Ghiabaklou

2016

Buildings

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Daylight can be considered as one of the most important principles of sustainable architecture. It is unfortunate that this is neglected by designers in Tehran, a city that benefits from a significant amount of daylight and many clear sunny days during the year. Using a daylight controller system increases space natural light quality and decreases building lighting consumption by 60%. It also affects building thermal behavior, because most of them operate as shading. The light shelf is one of the passive systems for controlling daylight, mostly used with shading and installed in the upper half of the windows above eye level. The influence of light shelf parameters, such as its dimensions, shelf rotation angle and orientation on daylight efficiency and visual comfort in educational spaces is investigated in this article. Daylight simulation software and annual analysis based on climate information during space occupation hours were used. The results show that light shelf dimensions, as well as different orientations, especially in southern part, are influential in the distribution of natural light and visual comfort. At the southern orientation, increased light shelf dimensions result in an increase of the area of the work plane with suitable daylight levels by 2%-40% and a significant decrease in disturbing and intolerable glare hours.

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Section: Discussionsupporting

confidence: 72%

Investigating the Influence of Light Shelf Geometry Parameters on Daylight Performance and Visual Comfort, a Case Study of Educational Space in Tehran, Iran

Moazzeni

Ghiabaklou

2016

Buildings

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“…Drawbacks related to artificial skies are connected with possible simulation errors [3]. Specific drawbacks in artificial scanning skies dealing with too large scales are, on the one hand, horizon line errors, and on the other hand, parallax errors in which scale models receive different quantities of daylight and sunlight.…”

Section: Lighting For Buildings Using Scale Modelsmentioning

confidence: 99%

“…Besides, some drawbacks for using scale models in lighting tests are meant by different authors [3]. Firstly, costs involved in the construction of scale models and transport to artificial skies.…”

Section: Lighting For Buildings Using Scale Modelsmentioning

confidence: 99%

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A review on experimental research using scale models for buildings: Application and methodologies

Lirola

Castañeda

Lauret

et al. 2017

Energy and Buildings

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a b s t r a c tA complete review on scale model testing for buildings, considering a wide range of methodologies and new manufacturing techniques, in areas such as statics and dynamics, acoustics, lighting, aerodynamics and thermodynamics for energy efficiency is presented. On the one hand, scale model testing for buildings require different considerations and techniques and are usually focused on one specific physical field contributing to the information scattering. On the other hand, they are sometimes too general, theoretical or unpractical. Although commercial computer simulations are first option among professionals, they necessarily simplify complex phenomena and ignore, among other aspects, size effects and latest findings in fractals. The potential of complementary experiments using new manufactured scale models for buildings is raising, however, it is still missing a practical overview through different physical fields specifically for buildings with these considerations. This review gives a wide perspective and unified scope on uses and possibilities of scale model testing for buildings, from the traditional configurations of Leon Battiste Alberti to new possibilities applying complex physics and new techniques of 3D-modelling.

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“…Advanced analysis methodologies for building fronts aiming to optimise energy consumption for lighting and to improve visual comfort in building design have already been tested in museums (Chang-Sung and Seung-Jin, 2011), schools (Pereza and Guedi Capeluto, 2006), offices (Reinhart and Herkel, 2000) and houses. For these, shading systems (Hussain and Amneh, 2010) and different types of glass (Breitenbach et al, 2001) have been investigated, also using dynamic simulation procedures (Aghemo et al, 2008). Despite the well-known benefits of natural light on the perception and tasting of wine (Oberfeld et al, 2009), and on the visual comfort of visitors and workers, there has been little specific research into agro-industrial buildings and, in particular, into those used for wine production.…”

Section: Study Objectivesmentioning

confidence: 99%

Design of farm winery façades for the optimisation of indoor natural lighting: a case study

Torreggiani

Corzani

Benni

et al. 2013

J Agricult Engineer

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This paper deals with the theme of daylighting performances of rural buildings, within a broader research context aimed at establishing design criteria for farm wineries. The objective is to benchmark the performances of different window systems in order to define design guidelines directed towards the optimisation of natural lighting to improve visual comfort and reduce energy consumption. A winegrowing and producing farm with standard features in the EmiliaRomagna region, Northern Italy, is considered as a case study. Particular attention was given to the part of the building designated for tasting activities. The study considered several opening solutions in the building envelope, and showed the effectiveness of those involving south façade glazing with appropriate screening systems. Further analyses will aim to investigate the performance of windows distributed on several fronts, including heat balance assessment.

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The approach to daylighting by scale models and sun and sky simulators: A case study for different shading systems

Cited by 42 publications

References 8 publications

Investigating the Influence of Light Shelf Geometry Parameters on Daylight Performance and Visual Comfort, a Case Study of Educational Space in Tehran, Iran

Investigating the Influence of Light Shelf Geometry Parameters on Daylight Performance and Visual Comfort, a Case Study of Educational Space in Tehran, Iran

A review on experimental research using scale models for buildings: Application and methodologies

Design of farm winery façades for the optimisation of indoor natural lighting: a case study

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