DESIGN, CONSTRUCTION AND TEST OF A PASSIVE SOLAR TRACKING DEVICE
DESIGN, CONSTRUCTION AND TEST OF A PASSIVE SOLAR TRACKING DEVICE
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Date
2008-06
Authors
EDEBI, Odafe Winston Umenu
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Abstract
This project is aimed at designing, constructing and testing of a single axis,
variable speed passive solar tracking device. This is because all the solar
trackers in use in the country are mainly imported.
The design works on the principle that Freon – 12 (Dichloroflouromethane)
boils at very low temperatures i.e. somewhat lower than – 300 F (-34.44oC) thus
generating great pressures even with just a small quantity of it evaporating.
This pressure generated from the evaporation of some of the Freon – 12 tilts
the collector in the direction of the sun through a hydraulic cylinder pivoted to
the collector base.
The solar tracker was designed, constructed, and tested by mounting a solar
Photovoltaic (PV) module on the tracker and comparison of the power output of
the PV module on the tracker against that of a stationary PV module was made.
Results showed that the tracking panel had an average relative performance of
about 30% over the stationary module and a cost of over N40, 000.00 cheaper
than that of the imported one.
It was thus concluded that the project was a success because the relative
performance obtained is in agreement with reported performances of similar
tracking devices.
Description
A THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL
IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE
AWARD OF THE DEGREE OF MASTER OF SCIENCE
MECHANICAL ENGINEERING
(ENERGY STUDIES)
DEPARTMENT OF MECHANICAL ENGINEERING
FACULTY OF ENGINEERING
AHMADU BELLO UNIVERSITY
ZARIA
NIGERIA.
JUNE 2008
Keywords
DESIGN,, CONSTRUCTION, TEST, PASSIVE, SOLAR, TRACKING DEVICE