
Bio
Dr. Sajjan has an interdisciplinary background in engineering and renewable energy. Sajjan earned his PhD in Mining Engineering from the University of British Columbia in Vancouver, Canada. His doctoral research focused on developing numerical tools to understand heat and mass transfer processes in complex geological formations for the extraction of geothermal energy for residential and industrial applications. Prior to his PhD, Sajjan received his Master of Science in Renewable and Clean Energy Engineering from Wright State University in Ohio, and his bachelor’s degree in Mechanical Engineering from Tribhuvan University in Nepal. He has extensive experience in modeling fluid flow and heat transfer processes using Computational Fluid Dynamics (CFD) tools for renewable and alternative energy applications, including geothermal, hydropower, and heat recovery.
At ORNL Sajjan is involved in multiple Geothermal and Thermal Energy Storage (TES) projects including geothermal heat pumps in abandoned underground mines, Reservoir Thermal Energy Storage with High Temperature Heat Pump (RTES-HTHP), Underground Thermal Battery (UTB), Heat Pump Water Heater (HPWH), Life Cycle Analysis of geothermal drilling, etc. He is also serving as the Vice-President of Oak Ridge Postdoc Association (ORPA-25)
Awards
Transdisciplinary collaborative PHD award (UBC)
MITACS accelerate research award (X2)
Graduate student awards (UBC) (X5)
Visiting Research Fellowship (IROAST)
Graduate research fellowship (WSU)
Mahatma Gandhi Scholarship
Education
The University of British Columbia (UBC) - PhD in Mining Engineering
Wright State University - MSc in Renewable and Clean Energy Engineering
Tribhuvan University (Pulchowk Campus) - BE in Mechanical Engineering
Professional Service
Member: ASHRAE SPC 233
Reviewer: Applied Energy, CIM journal, Processes, IGSHPA, Transaction of the Canadian Society of Mechanical Engineering
Professional Affiliations
ASHRAE
GRC
CIM