Mathematical Problems in Engineering
Volume 2010 (2010), Article ID 784794, 13 pages
doi:10.1155/2010/784794
Research Article

Calculation of Some Integrals Arising in Heat Transfer in Geothermics

J. L. G. Santander,1 P. Castañeda Porras,2 J. M. Isidro,3 and P. Fernández de Córdoba3

1Departamento de Ciencias Experimentales y Matemáticas, Universidad Católica de Valencia, 46002 Valencia, Spain
2Departamento de Matemáticas, Universidad de Pinar del Río, 20200 Pinar del Río, Cuba
3Instituto Universitario de Matemática Pura y Aplicada, Universidad Politécnica de Valencia, 46022 Valencia, Spain

Received 28 September 2010; Accepted 29 November 2010

Academic Editor: Miguel Cerrolaza

Copyright © 2010 J. L. G. Santander et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We calculate some integrals involved in the temperature field evaluation of the ground, heated by a borehole heat exchanger. This calculation allows a faster computation of that component of the temperature field which involves the periodic oscillation of the ambient temperature or the ambient heat flux.