Design parameters for solar light pipes in the Brazilian context

Toledo, Gandhi Escajadillo; Pelegrini, Alexandre Vieira; Heemann, Adriano

doi:10.1080/19397038.2016.1148796

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…Malet-Damour et al carried out modeling and experimental studies to tubular daylight guide systems in buildings and found that the light distribution in the room was strongly related to the type of sky [19]. There are also many case studies on the performance of SOGL systems at different regions [20][21][22][23]. Wu and Li studied the lighting performance of a top lighting SOGL system in a meeting room in Beijing and found that the daily average illumination was 147.8 lux [20].…”

Section: Introductionmentioning

confidence: 99%

“…Zhang et al designed straight light-pipes with various configurations under all weather conditions in the UK [22]. Toledo et al analyzed the performance of a SOGL pipe prototype in Brazil and proposed the optimal SOGL pipe configurations [23].…”

Section: Introductionmentioning

confidence: 99%

“…It is of high significance to achieve efficient utilization of clean and renewable solar energy to supply natural lighting in buildings [13,[20][21][22][23], especially to the lower levels and shadow areas [15]. However, most studies discussed the solar illumination inside the buildings [14][15][16][17][18][19][20][21][22][23]. There are few studies discussing the blocking problems between building groups.…”

Section: Introductionmentioning

confidence: 99%

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Transient Performance Analysis of the Solar Optical Guide Lighting System in Building Groups

et al. 2018

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With accelerating urbanization, lighting problems frequently appears for residents at lower levels of buildings. In order to solve the sunlight blocking problem between high buildings, a new solar optical guide lighting (SOGL) system is proposed in this study. Numerical simulations are carried out to evaluate the SOGL system according to the light distribution both inside the buildings and between building groups at different times. Experimental setups are built to validate the simulated results. Main factors influencing the optical efficiency are discussed. It is found from this study that the SOGL system can realize the lighting purpose inside and between high buildings. The shadow areas between buildings are lightened into acceptable levels. The stronger the solar irradiation is, the higher the optical efficiency would be. And decreasing the ratio of optical guide pipe length to its radius would lead to the rise of optical efficiency.

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