International Journal of Environmental Sciences

Volume 3 Issue 5 2013- March 2013    Pages: 1330-1338  <<Previous    Next>>

Determination of soil thermal conductivity using solar energy and soil temperature in Sokoto

Author Information:

Gwani M1, Abubakar G.A1, Utah E.U2

1- Department of  Physics, Kebbi State University of Science and Technology Aliero.

2- Department of Physics, University of Jos.

ABSTRACT

This study has investigated the thermal conductivity of sandy soil at a site in Usmanu Danfodiyo University Sokoto, Nigeria (13.10o N,5.23oE). 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. 

Keyword: Thermal conductivity, Soil temperature, Solar energy.

DOI:10.6088/ijes.2013030500003

© 2013 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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