NUCLEAR SAFETY AND ENERGY CONVERSION
As one of a key phenomenon in thermal hydraulics system, nucleate boiling has been widely studied by numerous researchers to improve efficiency and safety of the system (i.e, nuclear power plant, r
The flow boiling, which has heat transfer with flow, is the one of the phase change phenomena but not well understood due to the complexity. In many industries including power plants, flow boiling
We used the basic two experimental methods to understand the Film Boiling Heat Transfer; quenching and leidenfrost experiment. The major points able to ac
Condensation phenomenon occurs when vapor is subcooled below the saturation temperature at given pressure. And condensation is a phase change phenomenon which is very efficient heat transfer using
Research reactors are nuclear reactors which were developed for neutron based research industry rather than for power generation. Water in the reactor pool acts as the moderator, reflector, and shi
In-Vessel Retention by External Reactor Vessel Cooling (IVR-ERVC) is one of the severe accident management strategies to terminate or mitigate the severe accident (SA) which is also called ‘c
In severe accident, the ex-vessel corium coolability is one of risk-significant issues and there are still significant uncertainties in the coolability in terms of the debris bed characteristics
Steam explosion is one of the risk significant phenomena at the severe accident. It often occurs if hot liquid material comes into contact with cold coolant and the coolant boils at a local a
Cooling of ex-vessel corium mixture is one of the most important issues of the severe accident for preventing the accident progress and mitigating the accident result. To avoid MCCI and secure the
In the late phase of severe accident in nuclear power plants, it is important to assure the coolability of the relocated corium in the reactor cavity. Under this circumstance, concrete ab
In case of severe accident when core melt is ejected from vessel, external core catcher has been considered in APR1400 reactor. Two-phasenatural circulation basedcore catcher cooling system r
The final goal of MCCI prevent interaction of corium and concrete. In addition to this, we have to eliminate decay heat and secure corium coolability. But it hardly prevents MCCI phenomena. Nuclear
The sodium–water reaction (SWR) is a serious impediment to development of sodium fast cooled nuclear reactor (SFR), especially at sodium water heat exchanger
The big issue of S-CO2 Brayton cycle is to develop compact heat exchanger which is comparable to the size of turbines and compressors. One of the candidates of this compact heat exchanger is pr
The PEMFC (polymer electrolyte membrane fuel cell) is a kinds of electro – chemical system to exchange chemical potential energy of gases, especially hydrogen and oxygen, to electrical energy.
