A5074820615- Heat transfer and supercritical fluids
- Refrigeration and Air Conditioning Technologies
- Nuclear reactor physics and engineering
- Phase Equilibria and Thermodynamics
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Heat Transfer and Optimization
- Advanced Combustion Engine Technologies
- Nuclear Materials and Properties
- Advanced Thermodynamic Systems and Engines
- Combustion and flame dynamics
- Catalytic Processes in Materials Science
- Nuclear Physics and Applications
- Turbomachinery Performance and Optimization
- Heat Transfer and Boiling Studies
- Spacecraft and Cryogenic Technologies
- Nuclear Engineering Thermal-Hydraulics
- Silicon and Solar Cell Technologies
- Aerodynamics and Fluid Dynamics Research
- Risk and Safety Analysis
- Chemical Looping and Thermochemical Processes
- Carbon Dioxide Capture Technologies
- CO2 Sequestration and Geologic Interactions
- Distributed and Parallel Computing Systems
- Gas Dynamics and Kinetic Theory
- Building Energy and Comfort Optimization
Korea Institute of Energy Research
2021-2023
Korea Advanced Institute of Science and Technology
2017-2021
This paper presents the neutronics and transient studies of a supercritical CO2-cooled micro modular reactor (MMR). The suggested MMR is an extremely compact, integrated, truck-transportable with 36.2 MWth power 20-year lifetime without refueling. A salient feature that all components including generator are contained in small vessel. For minimum volume maximum core, fast neutron spectrum utilized. To improve fuel-coolant compatibility to maximize fuel fraction, UC considered. unique...
The design parameters of heat pumps are related to each other nonlinearly or in a complicated manner; therefore, it is difficult determine the optimal combination parameters, such as superheat, subcooling, and refrigerant type, analytically. To address this limitation, three representative heuristic algorithms, namely genetic algorithm (GA), particle swarm optimization (PSO), simulated annealing (SA), applied optimize pump under given process conditions. Heuristic algorithms driven based on...
After the Fukushima accident, importance of an emergency power supply for a nuclear plant has been emphasized more. In order to maximize performance existing source in operating plants, adding waste heat recovery system is suggested first time this study. explore possibility idea, comparison six supercritical carbon dioxide (S-CO2) cycle layouts recovering from 7.2 MW alternate alternating current diesel generator (AAC DG) presented. The engine can two sources system: one exhaust gas and...
In recent years, to overcome the challenges of nuclear power plants due their large scale, numerous types small modular reactors are being designed worldwide. Small required have a capability operate in environmentally challenging regions with long refueling time. Supercritical CO2 (S-CO2)-cooled direct-cycle reactor is one candidates that can meet these requirements. order evaluate if design achieves this goal, transport generated radionuclides from long-term operation has be evaluated...
As a part of Sodium-cooled Fast Reactor (SFR) development, the supercritical CO2 (S-CO2) Brayton cycle is considered as an alternative power conversion system to eliminate sodium-water reaction (SWR) from current conventional steam Rankine utilized with SFR. The leakage flow S-CO2 turbo-machinery via seal becomes one important issues since not only it influences efficiency due parasitic loss but also for evaluating safety under various operating conditions. Thus, transient simulation...