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Dr. Theo Renaud
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Research Keywords & Expertise

0 Geothermal
0 Reservoir Engineering
0 geothermal energy
0 Fractured Reservoirs
0 Well Engineering

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Short Biography

I gained expertise in numerical modeling of geothermal energy systems. My research aims at investigating high enthalpy reservoirs and closed-loop unconventional wells designs.

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Journal article
Published: 19 June 2021 in Sustainability
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Geothermal energy is a reliable and mature energy source, but it represents less than 1% of the total renewable energy mix. While the enhanced geothermal system (EGS) concept faces technical validation challenges and suffers from public acceptance issues, the development of unconventional deep-well designs can help to improve their efficiency and reliability. Modelling single-EGS-well designs is key to assessing their long-term thermal performances, particularly in unconventional geological settings. Numerical results obtained with the T2WELL/EOS1 code have been validated with available experimental data from a deep borehole heat exchanger (DBHE), where a temperature of 358 C has been measured at a depth of 1962 m. Based on a calibrated model, the thermal performances of two enhanced thermal conductive DBHEs with graphite were compared for high geothermal gradients. The analysis highlights the potential recovery of a variable fraction of vapour. Graphite used along the well appears to be the most suitable solution to enhance the thermal output by 5 to 8% when compared to conventional wells. The theoretical implementation of such well in the Newberry volcano field was investigated with a single and doublet DBHE. The findings provide a robust methodology to assess alternative engineering solutions to current geothermal practices.

ACS Style

Theo Renaud; Lehua Pan; Hannah Doran; Gioia Falcone; Patrick Verdin. Numerical Analysis of Enhanced Conductive Deep Borehole Heat Exchangers. Sustainability 2021, 13, 6918 .

AMA Style

Theo Renaud, Lehua Pan, Hannah Doran, Gioia Falcone, Patrick Verdin. Numerical Analysis of Enhanced Conductive Deep Borehole Heat Exchangers. Sustainability. 2021; 13 (12):6918.

Chicago/Turabian Style

Theo Renaud; Lehua Pan; Hannah Doran; Gioia Falcone; Patrick Verdin. 2021. "Numerical Analysis of Enhanced Conductive Deep Borehole Heat Exchangers." Sustainability 13, no. 12: 6918.

Journal article
Published: 01 November 2019 in International Journal of Heat and Mass Transfer
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ACS Style

Theo Renaud; Patrick Verdin; Gioia Falcone. Numerical simulation of a Deep Borehole Heat Exchanger in the Krafla geothermal system. International Journal of Heat and Mass Transfer 2019, 143, 1 .

AMA Style

Theo Renaud, Patrick Verdin, Gioia Falcone. Numerical simulation of a Deep Borehole Heat Exchanger in the Krafla geothermal system. International Journal of Heat and Mass Transfer. 2019; 143 ():1.

Chicago/Turabian Style

Theo Renaud; Patrick Verdin; Gioia Falcone. 2019. "Numerical simulation of a Deep Borehole Heat Exchanger in the Krafla geothermal system." International Journal of Heat and Mass Transfer 143, no. : 1.