Theoretical Analysis of the Influence of the Thermal Diffusivity of Clay Soil on the Thermal Energy Distribution in Clay Soil of Abakaliki, Nigeria

N.O. Nwadibia ； E.I. Ugwu ； K.A. Aduloju

《Research Journal of Applied Sciences, Engineering and Technology》 2卷3期 (2010/05) Pp. 216-221

並列摘要

The influence of the thermal diffusivity of clay soil on thermal energy distribution in clay soil was studied using one and two dimensioned heat equation, which was solved, by using separation of variables method. In the analysis, heat was assumed to be propagated along rectangular molded clay with length (L)with the width being considered negligible in the case of one dimension with different temperature ranging from 350 to 1290℃ within zero to one minute chosen where some parameters such as thermal diffusivity In the second case, a steady state heat flow was considered in two dimensions with the assumption that temperature distribution is constant. Different temperature ranging from 350 to 1290℃ within zero to one minute were chosen with some parameters such as thermal diffusivity, specific heat and mass per unit length of the clay are specified. The variation of the thermal conductivity and diffusivity with temperature was analyzed while that of the energy flux, u(x, t) variation with time for different chosen length were plotted Two dimensional thermal energy distribution viewed at different points was also considered using different values of thermal diffusivity respectively.

並列關鍵字

Boundary condition ； clay soil ； partial differential equation ； thermal conductivity ； thermal diffusivity ； temperature ； thermal energy distribution ； temperature gradient