Light pipes

Light pipes gather incoming sunlight sometimes using a solar tracking system. The light is concentrated using lenses or mirrors and is then transmitted to building interiors by 'pipes'. The pipes can be hollow shafts or ducts with reflective internal finishes, or may use fibre optic cable technology. A special luminaire is required to provide distribution of the light within the building.

The system is heavily reliant on the availability of sunlight and for critical tasks or areas a backup artificial light source is required. Examples of the technology are to be found in the roof of the concourse at Manchester Airport, UK, and the experimental low energy house at Nottingham University (Figure 14.4).

Figure 14.3

Basic principle of the light shelf

Figure 14.3

Basic principle of the light shelf

Figure 14.4

Section through a sunpipe

Figure 14.4

Section through a sunpipe

Figure 14.5

Solar shading, Wessex Water Divisional Headquarters

Getting Started With Solar

Getting Started With Solar

Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.

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