ZEMCH 2015 - International Conference Proceedings | Page 650

station where they depend mostly on artificial lighting. To study the shaded casted by the towers
and its effect on the station, Autodesk Ecotect Analysis software was used to simulate this effect, the
study was done during a complete day, and Figure 24 below illustrates the effect of casted shadows.

Figure 24: Shadows case on Metro Station (Autodesk 2011)
To enhance the daylighting in the metro station light tubes are proposed in order to introduce
defused lighting into the building that does not interrupt the thermal comfort or increase heat
gain, at the same time using light tube to control amount of day lighting entering to the building
and reducing electrical consumption and loads. Light tubes are easy to install and can be directed
to any desired location by its flexible tube. Figure 25 shows a detailed section for the mechanism
of light tubes (Darula et al. 2013:32).

Figure 25: Section through Light Tube (Ecotun 2014)

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ZEMCH 2015 | International Conference | Bari - Lecce, Italy