TITLE:
Optimum Inclination Angles of Booster Mirrors and Solar Radiation Availability on the Horizontal and Inclined Box Type Solar Cookers
AUTHORS:
V. P. Sethi, K. Sumathy, D. S. Pal
KEYWORDS:
Solar Radiation; Solar Cooker; Optimum Inclination; Booster Mirror
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.1 No.5,
November
26,
2013
ABSTRACT: Mathematical relations are developed
to compute optimum inclination angle of booster mirror for horizontally placed
cooker (λ) and for optimally inclined
cooker (ψ) during all months
(selected day) of the year at 30°N latitude for maximizing the reflected
component of solar intensity onto the absorber plate of the cooker. A solar
radiation model is also developed and used to compute the ratio of various
solar intensities on horizontal, inclined and normal surface of the absorber
plate for all months at 30°N latitude. These ratios give a clear indication of
greater solar radiation availability on the optimally inclined cooker as
compared to the horizontally placed cooker for faster cooking especially during
winter months when solar radiation capture is small. Experimental validations
have also been performed to access the accuracy of the developed relations and
model.