A critical review on the use of shallow geothermal energy systems for heating and cooling purposes

AA Ahmed, M Assadi, A Kalantar, T Sliwa… - Energies, 2022 - mdpi.com
The reduction of CO2 emissions has become a global concern. In this regard, the EU
intends to cut CO2 emissions by 55% by 2030 compared to those of 1990. The utilization of …

Optimal design, operational controls, and data-driven machine learning in sustainable borehole heat exchanger coupled heat pumps: Key implementation challenges …

N Ahmed, M Assadi, AA Ahmed, R Banihabib - Energy for Sustainable …, 2023 - Elsevier
The integration of technologies has made it possible to develop optimal operating conditions
at reduced costs, which results in a more sustainable energy transition away from fossil fuels …

[HTML][HTML] Modeling and investigation of the performance of a solar-assisted ground-coupled CO2 heat pump for space and water heating

TA Sazon, H Nikpey - Applied Thermal Engineering, 2024 - Elsevier
The rise in the popularity of heat pumps should be accompanied by the increase in the
utilization of environmentally-safe working fluids. To push for wider uptake of hybrid heat …

[HTML][HTML] Comparison of different configurations of a solar-assisted ground-source CO2 heat pump system for space and water heating using Taguchi-Grey Relational …

TA Sazon, Q Zhang, H Nikpey - Energy Conversion and Management, 2024 - Elsevier
This work deals with the comparison of different optimized configurations of solar-assisted
ground-source CO 2 heat pump systems using the Taguchi method and Grey Relational …

Energy, economic and environmental GIS–based analysis of shallow geothermal potential in urban areas—A Spanish case example

A Ramos-Escudero, IC Gil-García… - Sustainable Cities and …, 2021 - Elsevier
During the last decades, both population growth and increasingly concentration in cities turn
these areas into major consumers of energy, mainly due to heating and cooling energy …

Application and design aspects of ground heat exchangers

L Boban, D Miše, S Herceg, V Soldo - Energies, 2021 - mdpi.com
With the constant increase in energy demand, using renewable energy has become a
priority. Geothermal energy is a widely available, constant source of renewable energy that …

[HTML][HTML] New trilobular geometry using advanced materials for experimentally validated enhanced heat transfer in shallow geothermal applications

JF Urchueguia, B Badenes, MAM Pla, B Armengot… - Renewable Energy, 2024 - Elsevier
Abstract The Adapted Conductivity Trilobular (ACT) design, comprising an up-flow central
pipe and three satellite downward pipes, represents a novel configuration of a borehole heat …

New formulations and experimental validation of non-stationary convolutions for the fast simulation of time-variant flowrates in ground heat exchangers

G Beaudry, P Pasquier, A Nguyen - Science and Technology for …, 2024 - Taylor & Francis
Flowrate control can have a significant positive impact on the thermal performance and
economic profitability of ground-source heat pump systems. Including dynamic advective …

How a sensitive analysis on the coupling geology and borehole heat exchanger characteristics can improve the efficiency and production of shallow geothermal …

JM Chicco, G Mandrone - Heliyon, 2022 - cell.com
Abstract Knowledge of the thermal behaviour around and throughout borehole heat
exchangers (BHEs) is essential for designing a low enthalpy geothermal plant. In particular …

Assessment of ground regeneration around borehole heat exchangers between heating seasons in cold climates: a case study in Bialystok (NE, Poland)

J Piotrowska-Woroniak - Energies, 2021 - mdpi.com
Based on the experimental studies, the process of ground regeneration around the borehole
loaded with brine-water heat pumps working exclusively for heating purposes in the period …