Determination of soil thermal conductivity using solar energy and soil temperature in Sokoto
2013
Gwani, M | Abubakar, GA | Utah, E.U.
This study has investigated the thermal conductivity of sandy soil at a site in Usmanu Danfodiyo University Sokoto, Nigeria (13.10° N,5.23°E). The results are based on soil temperature, Surface temperature, insolation data collected from the meteorological Department of Sokoto Energy Research Center (SERC) between the months of March to June 2008 by sensor installed by the center for Basic Space Science (CBSS). The soil thermometer was buried at 5cm depth in the ground which measured the soil temperature. The mean value of the soil thermal conductivity is 1.32 +_0.06WM⁻²k⁻¹. The calculation of thermal conductivity assumed that the energy radiated from the surface of the earth is equal to that conducted from the soil. It was also observed that the soil thermal conductivity decreases as the temperature gradient is increasing.
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