Hot dry rock geothermal resources are widely distributed at various reservoir depths,
possessing high energy potential and substantial extraction prospects. Heat extraction …

To reduce energy-related costs, integrating cogeneration systems is one of the most
apposite avenues. Herein, a combined cooling, heating, and power (CCHP) cogeneration …

Repurposing abandoned oil and gas wells (AOGWs) into geothermal wells provides an
effective solution for developing a sustainable energy resource and reducing the carbon …

The abandoned well pattern for transforming geothermal reservoirs aligns seamlessly with
the prevailing shift towards low carbon and enhanced energy efficiency. The effect of …

In cold regions, passive thermosyphons are often employed in permafrost protection and
artificial ground freezing (AGF) applications. While passive thermosyphons utilize available …

To overcome the restrictions of the limited heat exchange area of the traditional coaxial
borehole heat exchanger (CBHE), an enhanced CBHE is proposed. This strategy …

In order to utilize the medium-and-low grade energy sources more efficiently, a new
combined cooling, heating and power system using CO 2 working fluid is proposed in this …

Two-phase closed thermosyphons are efficient passive heat transfer devices that have
received substantial attention in ground heat extraction. However, modelling thermal energy …

We present a novel, three-dimensional (3D), space-marching analytical framework that
accurately predicts and evaluates the thermal performance of a geothermal borehole system …

Current practice of underground artificial ground freezing (AGF) typically involves huge
refrigeration systems of large economic and environmental costs. In this study, a novel AGF …