Abstract Geothermal energy from Hot Dry Rock (HDR) with poor permeability is recognized
as a potential future energy source, and it can be exploited by Enhanced Geothermal …

Deep geothermal energy exploitation has gained a lot of attentions in energy field due to its
large reserve. Enhanced geothermal system (EGS) is the only one mode to explore hot dry …

The existence of preferential flow paths, such as fractures and/or fault play an vital role on
the thermal breakthrough of geothermal doublet system. The interaction between the …

At present, geothermal energy is a promising research area but with a series of unknowns
waited to be explored. Recently, the U-shaped closed loop geothermal extraction system …

To realize the effective extraction of high-temperature thermal energy in enhanced
geothermal system (EGS), it is necessary to explore how to efficiently construct fracture …

The complex fracture network is necessary to provide flow and heat transfer channels for
working fluid of an enhanced geothermal system (EGS). It is significant to compare heat …

Formation of enhanced geothermal system provides flow and heat transfer paths for heat
extraction in HDR (hot dry rock). Based on the local thermal non-equilibrium theory, the THM …

Because of the additional benefit of geological storage and the self-sustaining thermosiphon
effect, CO 2 instead of water as a working fluid for geothermal energy production has …

Geothermal energy has the potential to support direct heat usage and electricity generation
at a low carbon footprint. Using carbon dioxide (CO 2) as a heat transfer fluid can allow us to …

Research efforts towards CO 2 enhanced geothermal systems (CO 2-EGS) are increasing
due to potentially high heat extraction efficiencies. It is well known that CO 2 properties are …