Dr. Ji Hwan Lim is a Senior Researcher in the Radwaste Transportation and Storage R&D Division at the Korea Atomic Energy Research Institute (KAERI). As a distinguished expert in nuclear thermal engineering, his career is marked by pioneering contributions to the thermal-hydraulic safety of advanced nuclear systems. Most notably, Dr. Lim is the recipient of the 2025 KAERI Grand Prize and the 2025 KAERI Paper Award, achieving a historic "Grand Slam" as the youngest winner in the institute’s history. His research expertise lies at the intersection of ultra-high heat flux cooling for fusion reactors and vacuum drying technologies for spent nuclear fuel (SNF). In the fusion sector, he has led groundbreaking studies on the optimization of hypervapotron cooling channels and divertor components under extreme sub-cooled flow boiling conditions. Simultaneously, he is a leading authority on the vacuum drying process of SNF, having developed sophisticated analytical models and experimental protocols to evaluate phase-change heat transfer and residual moisture within canisters. Dr. Lim earned his Ph.D. in Nuclear Engineering from POSTECH, where he was recognized as a top-tier scholar through the Global Ph.D. Fellowship (GPF). His prolific academic output includes over 35 scientific papers in premier SCI/SCIE journals such as Nuclear Fusion and the International Journal of Heat and Mass Transfer.