Education background

Feb. 2005 - May. 2005 Visiting student, the University of Manchester, UK

School of Mechanical, Aerospace and Civil Engineering, the University of Manchester, UK

Sep. 1998 - Jul. 2007 Tsinghua University

Sep. 2002 – Jul. 2007 Ph. D, Department of Thermal Engineering

Tsinghua outstanding graduate student in research (Top 10 in Tsinghua)

Committee of 100 Leadership Scholarship (Top 20 in China)

Sep. 1998 - Jul. 2002 BS, Department of Thermal Engineering

Experience

Dec. 2021 – now Professor, Department of Energy and Power Engineering, Tsinghua University

Dec. 2010 – Dec. 2021 Associate Professor, Department of Thermal Engineering, Tsinghua University

Jan. 2012 – May. 2012 Visiting Scholar, Department of Chemical Engineering & Biotechnology, University of Cambridge, UK

Jul. 2009 – Nov. 2010 Assistant Professor, Department of Thermal Engineering, Tsinghua University

Jul. 2007 – Jun. 2009 Assistant researcher, postdoctoral researcher, Institute of Energy, Environment and Economy, Tsinghua University

Areas of Research Interests/ Research Projects

Transport dynamics and heat/mass transfer in micro/nano scale; single/multiphase flow and heat transfer in porous systems; supercritical pressure fluid flow and heat transfer.

Applications: Unconventional oil and gas (shale gas, shale oil, heavy oil), Enhanced Geothermal System (EGS), CO2storage and utilization technology (CO2- heavy oil, CO2-Shale gas, CO2-Geothermal), Aerospace thermal protection

Research Status

My research aims at improving our understanding of transport dynamics and heat/mass transfer in porous systems at micro/nano scale space and/or at the supercritical pressure conditions.

My research work provides answers to fundamental questions on the Knudsen effect on the flow, heat and mass transfer in the nano/micropores, on the dynamics of single- and multiphase flow at supercritical conditions in the tubes and complex porous network. Visualization experiments, models and theories are all used for the research, such as: core flooding system using Magnetic Resonance Image, micro-model experiments using microscope, CFD, LBM, etc.

Answers to these basic research questions are applicable to practical problems such as the CCUS system, CO2 saline aquifer storage, CO2 phase changing in the injection well and production well, the design of subsurface heat transfer network in Enhanced Geothermal System, CO2 feasibility for heavy oil recovery, shale gas extraction, and deep geothermal exploration.

Main Research Projects (including ongoing and finished projects)：

“The Methane migration in the Shale Gas Exploitation” sponsored by National Nature Science Foundation of China

“The Investigations on New CO2 Utilization and Storage Technology Combining with Enhanced Geothermal System”, International Science & Technology Cooperation Program of China, sponsored by Ministry of Science and Technology of China

“The Investigations on Enhanced Geothermal System”, project of National High-tech R&D Program (863 Program)

“Investigation of modeling of the Joule-Thomson effects and near wellbore heat transfer during CO2 injection” sponsored by Shell

“Trapping Mechanism of Injection Supercritical CO2 into Porous Media with Saline Water” sponsored by National Nature Science Foundation of China

China Shenhua CCS demonstration Project sponsored by MOST

China Shengli EOR demonstration Project sponsored by MOST

“International Cooperation on Geological Storage” Sino-Australia Joint Project

“The Key Fundamental Studies on CO2 Storage and Utilization” sponsored by Tsinghua Autonomous Research Foundation

“Research on the Development Strategy of Renewable Energy Technologies in China”, Joint Research project sponsored by National Nature Science Foundation of China and Chinese Academy of Engineering

“EU GeoCapacity Project” co-funded by the 6th Framework Programme of the European Community

“Cooperation Action within CCS China-EU (COACH Project)” co-funded by the 6th Framework Programme of the European Community

“Near Zero Emissions Coal (NZEC) Initiative” sponsored by Defra(Department for Environment, Food and Rural Affairs),UK

Academic Achievement

Main Publications

https://www.researchgate.net/profile/Ruina_Xu