TY - JOUR
N2 - Knowledge of the temperature distribution in subsurface layers of the ground is important in the design, modelling and exploitation of ground heat exchangers. In this work a mathematical model of heat transfer in the ground is presented. The model is based on the solution of the equation of transient heat transfer in a semi-infinite medium. In the boundary condition on the surface of the ground radiation fluxes (short- and long-wave), convective heat flux and evaporative heat flux are taken into account. Based on the developed model, calculations were carried out to determine the impact of climatic conditions and the physical properties of the ground on the parameters of the Carslaw-Jeager equation. Example results of calculated yearly courses of the daily average temperature of the surface of the ground and the amount of particular heat fluxes on the ground surface are presented. The compatibility of ground temperature measurements at different depths with the results obtained from the Carslawâ€“Jaeger equation is evaluated. It was found that the temperature distribution in the ground and its variability in time can be calculated with good accuracy.
L1 - http://sd.czasopisma.pan.pl/Content/110018/PDF/11_art_CPE_2019_1.pdf
L2 - http://sd.czasopisma.pan.pl/Content/110018
PY - 2019
IS - No 1
EP - 137
DO - 10.24425/cpe.2019.126106
KW - heat transfer
KW - temperature distribution in the ground
KW - heat balance at the ground surface
A1 - Larwa, Barbara
A1 - Kupiec, Krzysztof
PB - Polish Academy of Sciences Committee of Chemical and Process Engineering
VL - vol. 40
DA - 2019.04.10
T1 - Study of temperature distribution in the ground
SP - 123
UR - http://sd.czasopisma.pan.pl/dlibra/publication/edition/110018
T2 - Chemical and Process Engineering
ER -