Design Project of Combined Lighting of the Co-Working Area of the Youth Centre in the City of Milan Using Mirrored Hollow Tubular Light Guides

Abstract

In this scientific work, we present a developed design project for combined lighting of the youth centre co-working zone in the city of Milan (Italy), which, due to use of daylighting systems based on mirrored hollow tubular light guides, fully complies with the principles of sustainable architecture and comfortable environment, indicated in the requirements of the customer – the Milan city municipality. The paper proves that in terms of lighting parameters presented design project is not inferior to alternative projects that do not contain hollow tubular light guides and significantly surpasses them in energy saving and in the spectral effect on human circadian rhythms. The article shows a method, developed by the authors, for calculating the illumination of spaces with daylight, using lighting systems that include horizontally located mirrored light guides with bends, which allow calculating the illumination with a minimum correction from the actual measurement results. An exceptional feature of this work is the “light column” model, which not only fully illuminates the co-working area, but also contributes to the creation of cosiness and comfort in relaxation (temporary rest) sector of the co-working area.