Emad Jahangir

Biography

Emad Jahangir is a researcher specializing in geothermal energy, sustainable energy systems, and rock mechanics. His work focuses on optimizing drilling and extraction technologies for deep geothermal resources, particularly through projects such as ORCHYD, where he explores innovative methods such as combining high-pressure water jets (HPWJ) and percussion drilling to improve drilling efficiency in hard rock. His research also addresses the numerical modeling of thermohydraulic exchanges in geothermal systems, comparing the performance of fluids such as supercritical CO₂ and water, as well as the impact of fracture properties on their efficiency. At the same time, Emad Jahangir contributes to the study of the mechanical properties of crystalline rocks, analyzing their behavior under stress and at different scales, from microstructure to industrial applications. His work also includes critical analyses of methods for sizing geothermal heat exchangers, highlighting the limitations of traditional analytical models and their implications for the economic viability of these systems.

Publication(s)

2026
Assessment of common hypotheses adopted in borehole sizing for Ground-Source Heat Pump (GSHP) systems DOI : 10.1016/j.applthermaleng.2025.129433
2025
Dependency of Enhanced Geothermal System Performance on Fractures with Different Working Fluids (Water and sCO2) DOI : 10.3997/2214-4609.202522091
2025
Three-dimensional numerical study of DTH bit-rock interaction with HPWJ downhole slotting: Influence of bit design and bottom hole geometric conditions on rock breaking efficiency in percussive drilling DOI : 10.1016/j.rockmb.2024.100169
2025
ORCHYD: Combination of High-Pressure Water Jet and Percussion to Improve Drilling Performance in Hard Rocks DOI : 10.2118/223793-MS
2024
A complete experimental study on hard granites: Microstructural characterization, mechanical response, and failure criterion DOI : 10.1016/j.gete.2024.100592
2023
Field hydrothermal identification with groundwater flow by conducting Distributed Thermal Response Test (DTRT) through Moving Line Source (MLS) theory DOI : 10.1016/j.applthermaleng.2023.120740
2023
Enhancing drilling performance of mud hammers by combining high pressure water jets slotting DOI : 10.56952/ARMA-2023-0784
2022
Evaluation of possible reactivation of undetected faults during CO2 injection DOI : 10.1016/j.ijggc.2022.103794
2021
Development and application of an interface constitutive model for fully grouted rock-bolts and cable-bolts DOI : 10.1016/j.jrmge.2021.03.011
2021
Tunnelling-induced surface settlement: on the choice of soil constitutive model DOI : 10.1080/19648189.2019.1639078
2020
Mechanical behavior of frozen metapelite: Laboratory investigation and constitutive modeling DOI : 10.1016/j.coldregions.2020.103058
2020
Thermo-hydro-mechanical modeling of artificial ground freezing taking into account the salinity of the saturating fluid DOI : 10.1016/j.compgeo.2019.103382
2019
Critical state constitutive models and shear loading of overconsolidated clays with deviatoric hardening DOI : 10.2478/sgem-2019-0024
2018
Numerical and analytical study of rate effects on drilling forces under bottomhole pressure DOI : 10.1016/j.ijrmms.2018.07.017
2018
Modeling heat and mass transfer during ground freezing taking into account the salinity of the saturating fluid DOI : 10.1016/j.ijheatmasstransfer.2017.12.065
2016
Effective stress in swelling soils during wetting drying cycles DOI : 10.1016/j.enggeo.2016.05.021
2013
Volume change behaviour of a swelling soil compacted at different initial states DOI : 10.1016/j.enggeo.2012.11.010
2013
An analytical model of soil-structure interaction with swelling soils during droughts DOI : 10.1016/j.compgeo.2013.05.009
2013
State surface of wetting-drying cycles at the equilibrium stage
2013
State surface of wetting-drying cycles at the equilibrium stage DOI : 10.1201/b14393-66
2012
Estimation of ground settlement beneath foundations due to shrinkage of clayey soils DOI : 10.1139/T2012-042

Teaching

Natural Hazards

Guest Lecturer

Natural hazards, damage, and vulnerability; natural risk management; Natural phenomena and event scenarios (intensities and recurrence intervals): floodplains and rising groundwater levels, urban stormwater runoff, torrential events, landslides, subsidence and ground collapse, earthquakes, etc. ; Aggravating human activities, soil and water pollution, “post-mining” situations; Monitoring methods and challenges in event forecasting; Geoprospective, natural hazards, and land-use management; Building codes and standards (introduction to seismic engineering, etc.); Regulatory mapping (urban planning documents, Risk Prevention Plans, etc.); A cindynic approach to risk management and crisis situations.

Geology Internship or Practical Geology Course (for AST 2A only)

Guest Lecturer

One-week observation internship in LARAGNE-MONTEGLIN (Hautes-Alpes)

PhD supervision

2025 Deep geothermal drilling optimization: coupled modeling of percussion and shearing mechanisms to enhance cutting performance UZQUIANO AL-RICABI Fernando
2023 Digital investigation of coupled subsurface THM processes: importance of thermal effects and pressure diffusivity on stress transfers KHEZRI Khashayar
2022 Optimization of the sizing of the surface geothermal installation BEZ Fabien
2015 The impact of shallow underground construction in urban environments RACHDI Sara

Keywords

Team