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26. THE DETERMINATION OF SOLAR ENERGY RECEIVED IN MISAU TOWN BAUCHI STATE NIGERIA by D. Dahuwa, S.Y. Nalafiya, U. Wadata, M. Bello, I.T. Balarabe and Z. Muhammad Volume 51 (May, 2019 Issue)
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THE DETERMINATION OF SOLAR ENERGY RECEIVED IN MISAU TOWN BAUCHI STATE NIGERIA

D. Dahuwa, S.Y. Nalafiya, U. Wadata, M. Bello, I.T. Balarabe and Z. Muhammad

Department of Physics A.S.C.O.E. Azare, Bauchi State, Nigeria

School of Preliminary Studies Federal polythecnic Bauchi. Bauchi state Nigeria.

Department of Physics Nagarta College Sokoto, Sokoto State, Nigeria

Jigawa State universal Education Board Dutse, Jigawa State Nigeria.

Abstract

The paper titled “Measurement of solar energy received in Misau, Bauchi state using calorimetric method” is an attempt to measure the solar energy and power collected per unit area (solar constant) in Misau. The solar constant is an important value for the studies of global energy balance and climate. The analysis of satellite data suggests a solar constant of 1366.10 Wm-2 with a measurement uncertainty of ±3 Wm-2 of the radiant energy emitted from the sun. in this study we used locally fabricated low cost devices of aluminium cylinder to evaluate the amount of solar energy received and solar constant and the values obtained was 2690.08J and 1160.43Wm-2 respectively from ground-based measurement of solar radiation, which turns out to be in close agreement with that suggested by satellite data measurement and those reported in many literatures. The observed slight deviation in our evaluated value is attributed to the fact that solar constant is not perfectly constant, but varies in relation to the solar activities and fluctuation in extraterrestrial radiation which is about 6.9% during the year (from 1412.0 Wm-2 in January to 1321.0 Wm-2 in July) due to the Earth’s varying distance from the sun. The analysis further shows that the temperature of the sun’s photosphere and the hours of daylight were 5545.24K and 12hours 38minutes respectively.

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