Abstract:
Conversion of solar energy to mechanical power through the use of
thermostatic bimetals and linear Fresnel lenses was found to be both
theoretically and experimentally feasible. Using linear Fresnel lenses
to concentrate sunlight on bimetallic coils caused a simple sun powered
motor to produce rotational shaft power. However, continuous rotational
motion could not be sustained. Efficient energy transfer through the
Fresnel lenses and the ability of the bimetal to absorb and dissipate
solar energy were determined to be critical factors limiting motor operation.
Several developments were suggested by the experiment which may
improve overall energy efficiency of the motor and possibly create continuous
rotational motion. Both thermostatic bimetals and linear Fresnel
lenses appear to have a promising future in the field of solar energy
conversion. Further research may reveal many practical applications for
the sun powered motor and its component parts.
