Journal of Geotechnology and Energy
Loading...
ISSN 2720-3581
Issue Date
2025
Volume
Vol. 42
Number
No. 3
Description
Journal Volume
Journal of Geotechnology and Energy
Vol. 42 (2025)
Projects
Pages
Articles
Enhancing building energy efficiency through the implementation of renewable energy sources
(Wydawnictwa AGH, 2025) Kowalska-Kubsik, Iwona
Considering increasing sustainability requirements and the urgent need to reduce greenhouse gas emissions, improving the energy efficiency of buildings has become a key challenge in the construction sector. One of the most promising approaches involves the integration of renewable energy sources (RES) as alternatives to traditional, high-emission energy systems. This paper presents an analysis of the potential for using RES – such as solar, geothermal, and biomass energy – to enhance the energy efficiency of residential and public buildings. The economic and environmental benefits of implementing modern energy technologies are discussed, along with examples of technical solutions and hybrid system models. Legal, technical, and social aspects related to the implementation of such systems are also considered. The results of the analysis indicate that well-designed and properly managed RES systems can significantly reduce the demand for primary energy and CO? emissions while increasing the energy independence of buildings.
The influence of the trajectory of a borehole heat exchanger on the power exchanged with the rock mass
(Wydawnictwa AGH, 2025) Kowalski, Tomasz
The article presents the influence of the trajectory of a borehole heat exchanger on the power exchanged with the rock mass. The focus is on the thermal parameters of rocks, which include thermal conductivity. This parameter can be determined using literature, laboratory tests or in-situ using a thermal response test. The design of the borehole heat exchanger as an inclined borehole maximizes the power exchanged with the rock mass by increasing the length of the borehole exchanger in the layer with the best thermal parameters. Mathematical calculations and thermal response tests show the advantage of inclined wells over vertical borehole heat exchangers in terms of the amount of power obtained from the rock mass.
Possibilities of using inclined boreholes in shallow drilling
(Wydawnictwa AGH, 2025) Kowalski, Tomasz; Artym, Rafał; Toczek, Przemysław
The article presents the possibilities of using inclined boreholes. Three cases were considered: backfill boreholes, hydrogeological boreholes, and borehole heat exchangers. The advantages and disadvantages of these solutions are described. In the case of an inclined backfill borehole, the time required for backfill material injection is minimized. In the case of an inclined hydrogeological borehole, the active filter area is increased, improving efficiency. In the case of inclined borehole heat exchangers, the unit power exchange with the rock mass is increased by increasing the length of the borehole in the layer with the best thermal conductivity.