A fluorescent fibre solar concentrator (FFSC) design and trial run / Wang Chen
This thesis presents the author's research work on a concept development in the field of solar energy application for building illumination during his doctoral journey in Malaysia. As a considerable solution to the energy issues, solar energy is made widely available for daylighting and dir...
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| Format: | Thesis |
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2009
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| Online Access: | http://studentsrepo.um.edu.my/7789/ http://studentsrepo.um.edu.my/7789/1/A_FLUORESCENT_FIBRE_SOLAR.pdf |
| Summary: | This thesis presents the author's research work on a concept development in the
field of solar energy application for building illumination during his doctoral journey in
Malaysia. As a considerable solution to the energy issues, solar energy is made widely
available for daylighting and direct production of electricity. Various devices have been
developed to collect, concentrate, transport, store and con ert solar irradiation, such as
the light pipe, optical fibers, optical solar concentrators, and luminescent solar
concentrators (LSC). Many limitations such a the strict dependence on beam
irradiation and difficulties for wiring remain in these daylighting devices. This thesis
introduces a new concept developed by the author and a new device designed and
fabricated based on the concept in mitigating those limitations . The fabricated new
device named "Fluorescent Fiber Solar Concentrator" (FFSC ) is a l200mm X 1200mm
solar concentrator consisting of 150 piece of three-color 1m long fluorescent fibers
with the diameter of 2mm. FFSC is mounted on the roof of a university building and
the concentrated light is transported to a remote dark room through 10m long 2mm
diameter clear optical fibers . Outdoor testing for remote indoor daylighting and power
production evaluation have been conducted for the fabri cated new device FFSC. A
6-month monitored data from 24th May 2008 to 23rd Nov 2008 was analyzed.The
radiation-to-radiation efficiency with a mean value of 0.057 and the lighting effect up to
114.1 lumens reveal FFSC. 'a potential in remote indoor daylighting for the application in
building integration. The wavelength test and the CIE color analysis present a satisfactory match in color between the FFSC light output an the natural light.Since the sun light is free, even though the luminous efficacy as 0.6431m/W is lower than the normal electrical light sources, FFSC does not consume any electricity when operating.
The light-to-light efficiency falls within the range 0.49% to 0.64% and it is expected to
be raised by increasing the diameter of the fluorescent fibers embedded. FFSC systems
could probably be applied for the illumination in underground areas of buildings or
constructions such as the car park levels in shopping complexes, convention centers,
and some office buildings. This system could also be applied to illuminate the inner
areas in a building such as meeting rooms and corridors. Since electro circuits are not
needed in the FFSC system, potentially FFSC systems are quite suitable for subaqueous
and extremely moist operation environments when a durative illumination is needed
during the daytime. Further, FFSC system do not have any risk of fire caused by the
electrical current in inflammable gas conditions.
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