Point-Location Problem for Indoor Daylight Factor Computations

Abstract:

The paper presents the results of a comparative analysis of point-location methods for the computation of the daylight factor inside the rooms of irregular shapes with the use of hollow light guides. The daylight factor value for natural lighting provided by a set of light guides is computed in accordance with the Solovyovs procedure [; the following methods are considered as the point-location methods: the strip method and the ray-tracing method, both are modified for their use in the process of solution of the aforesaid problem. The results obtained show both the advantages and disadvantages of the aforesaid methods and allow the evaluation of the time-consumption value for both methods when applying in large rooms of irregular shapes.

• Periodical: Advanced Materials Research (Volumes 860-863)
• Pages: 109-113
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.860-863.109
• Online since: December 2013
• Authors: Vladimir Smirnov*, Tamara Rozovskaya, Vyacheslav Semenov
• Keywords: Daylight Factor (DF), Hollow Light Guide, Natural Lighting, Ray-Tracing Method, Strip Method

References

[1] Solovyoev A.K. Hollow Tubular Light Guides: Their Application for Natural Illumination of Buildings and Energy Saving / Light & Engineering. – 2012. – № 1. – p.40–49.

[2] Kuznetsov A.L., Oseledets E.U., Solovyov A.K., Stolyarov M.V. Case studies of hollow light guides implementation for natural illumination in Russia. / Svetotekhnika. – 2011. – № 6. – p.4–11.

[3] Kvok C. M, Chan C.M. Horizontal light guides effectiveness study for natural illuminations of rooms with side windows. / Light & Engineering. – 2008. – № 5. – p.49–51.

[4] Solovyov A.K. Environment Physics. Textbook. Association of civil engineering universities publishing house. (2008).

[5] Smirnov V.A., Rozovskaya T.A. Programming package for computation of hollow light guides. Proceedings of the International conference of young scientists: Risk assessment and safety in construction. New quality and reliability of building materials and structures based on high-tech engineering solutions. – М.: MGSU, 2012. – pp.260-262.

[6] Preparata F., Shamos M. Computational geometry: An introduction. Springer – Verlag, (1989).

[7] Aisenberg Yu.B., Bukhman G.B., Korobko A.A., Pyatigorsky V.M. Experience and perspective of hollow guide lighting system development and application. / Proc. 25th Sess. CIE: San Diego, (2003).

[8] Korobko A.A. Usage factors of illumination installations with slit light guides. / Svetotekhnika. – 1988. – № 5.

[9] Pein T. Development of hollow HTLGs in Great Britain. / Svetotekhnika. – 2004. – № 3.

[10] Bracale J. Natural illumination of rooms using a new passive light guide system SOLARSPOT,. / Svetotekhnika. – 2005. – № 5.