Evaluation methods of the daylight performance and potential energy saving of tubular daylight guide systems: A review

Abstract

In the past 30 years, tubular daylight guide systems (TDGSs) have become one of the most popular ways to transport outdoor natural light into the inner space in building design. However, tubular daylight guide systems are not widely used because of the lack of methods to evaluate methods on the suitability of the TDGSs. This study therefore summarizes the daylight performance metrics of TDGSs and presents the estimation methods in terms of field measurements, simulation and empirical formulae. This study focuses on the daylight performance and potential energy savings of TDGSs. Moreover, this study will be helpful for building designers to build healthy, comfortable and energy-saving indoor environment.

Lighting and visual comfort performance of commercially available tubular daylight devices

“…Carter (Carter, 2014) provides a thorough review of the features, physical performance and economics of TDDs. More recently, Li et al (Li et al, 2021) review the methodologies available for estimating daylight and energy performance of TDDs. Kim and Kim (Kim and Kim, 2010) provide a detailed review of models for TDD performance analysis and design as well as of different types of systems and several case studies.…”

Daylighting design validation and optimisation of tropical school classrooms with asymmetrical bilateral opening typology

“…Finally, the measured DF values were compared with the simulated DF obtained in RAD. The absolute error ε was computed using equation (1).…”

“…The DF exp was compared with the DF from simulation results (DF sim ) at low, medium and high settings. The relative error (ε) was therefore computed using equation (1).…”

“…It is mainly due to the known facts that daylight provides two significant benefits: improving building occupants' performance and well-being while reducing energy demand from electric lighting. 1 However, poorly designed daylighting can also cause problems with heat gain as well as thermal and visual discomfort. 2 Thus, considering optimally designed daylighting strategies is an important step that should be performed in building design.…”

Quality Analysis Of Room Natural Lighting Using Spatial Interpolation With Kriging Method

“…The level of utilization of natural lighting makes the conservation of electrical energy in the room decrease (Wei, 2021), and supports the conservation of light in the learning room and in the environment (Boulanger et al, 2021). It is necessary to know that the glass wall in the building is very influential on the lighting in the room (Wu, Zhou, & Li, 2021) where natural light directly penetrates into the room (Li, Wu, Yuan, & Zuo, 2021) so that it can reduce lighting sourced from lighting, this is one of the savings in the use of electricity in the learning room (Avgoustaki & Xydis, 2021). The determination of the lux of indoor lighting follows the Indonesian National Standard where the standard of the room designer by producing lux brown light which is recommended by the Indonesian National is a used room of 250 Lux, office space of 350 Lux, Laboratory room of 500 Lux, Study room of 300 Lux and a hall or multipurpose building 250 Lux.…”