Open AccessHeat Balance of Horizontal Ground Heat Exchangers
Author(s) -
Krzysztof Kupiec,
Monika Gwadera
Publication year - 2018
Publication title -
ecological chemistry and engineering. s
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.283
H-Index - 21
eISSN - 2084-4549
pISSN - 1898-6196
DOI - 10.1515/eces-2018-0035
Subject(s) - heat flux , heat exchanger , heat transfer , evaporation , convective heat transfer , mechanics , convection , heat transfer coefficient , work (physics) , environmental science , materials science , atmospheric sciences , meteorology , thermodynamics , geology , physics
This work refers to the modelling of heat transfer in horizontal ground heat exchangers. For different conditions of collecting heat from the ground and different boundary condition profiles of temperature in the ground were found, and temporal variations of heat flux transferred between the ground surface and its interior were determined. It was taken into account that this flux results from several different mechanisms of heat transfer: convective, radiative, and that connected with moisture evaporation. It was calculated that ground temperature at great depths is greater than the average annual ambient temperature.