Abstract:
An intermediate end plug assembly for a segmented fuel rod can stably support the fuel rod to the end of its cycle even if an interval between the fuel rods becomes narrow due to application of a dual-cooled fuel rod, and reduce excess vibration induced by flows of interior and exterior channels of the dual-cooled fuel rod for obtaining high burnup and output. To this end, the fuel rod has a segmented structure so as to make its length short. A lower intermediate end plug includes at least one channel hole, through which a coolant flows into an internal channel of the fuel rod, so that a possibility of causing departure from nuclear boiling ratio (DNBR) of the dual-cooled fuel rod is reduced.
Abstract:
Provided are a non-pyrophoric water gas shift reaction catalyst including: an oxide carrier composed of zirconium oxide (ZrO2) and at least one selected from yttrium oxide (Y2O3) and cerium oxide (CeO2); and platinum (Pt) and cerium (Ce) that are supported on the oxide carrier, a method of preparing the same, and a fuel processor including the non-pyrophoric water gas shift reaction catalyst.
Abstract translation:本发明提供一种非自燃水煤气变换反应催化剂,其包括:氧化锆(ZrO 2)和选自氧化钇(Y 2 O 3)和氧化铈(CeO 2)中的至少一种的氧化物载体。 和负载在氧化物载体上的铂(Pt)和铈(Ce),其制备方法和包括非自燃水煤气变换反应催化剂的燃料处理器。
Abstract:
Disclosed is a method for changing emotion of a software robot (sobot) in a sobot terminal. The sobot terminal includes a short-term memory unit and a long-term memory unit. When an emotional change occurs during the operation of the short-term memory unit, the sobot terminal stores a short-term reference emotion value of the corresponding emotion in the long-term reference memory. When the operation time of the long-term memory unit elapses, the sobot terminal resets the long-term reference emotion value using the short-term reference emotion values stored in the long-term memory unit. The sobot terminal can change the emotion of the sobot more naturally through the above process.
Abstract:
A fuel processor having a CO removal unit including an apparatus for warming a CO shifter, is provided. A method of using the fuel processor is also provided. The fuel processor includes a reformer that extracts hydrogen gas from a raw fuel by reacting the raw fuel with water. A burner heats up the reformer to a temperature suitable for extracting the hydrogen gas. A CO shifter removes CO produced during the extraction reaction from the hydrogen gas, and a medium path line in which a heat exchange medium disposed therein absorbs heat from the reformer and passes the heat to the CO shifter. A fuel processor having the above structure can greatly reduce the time required to increases the temperature of the CO shifter to an appropriate operating temperature at an early stage of start up, since a rapid heating of the CO shifter is possible using the heat exchange of steam.
Abstract:
A grid strap includes a spacer grid spring that increases the conformal contact area with a fuel rod of a nuclear fuel rod assembly. The shape of the spacer grid spring of the grid strap which is in contact with the fuel rod is optimized, thereby the elasticity of the spacer grid spring contacting the fuel rod is increased, the conformal contact area with a contact portion of the spacer grid spring contacting the fuel rod when the fuel rod is inserted into each cell of a spacer grid is expanded to obtain uniform stress distribution, and excessive plastic deformation of the spacer grid spring can be reduced. Further, magnitude and distribution of contact pressure between the fuel rod and the spacer grid spring are improved, thereby reducing the possibility of fretting wear caused by contact between the fuel rod and the spacer grid spring. The elastic behavior region of the spacer grid spring is expanded, so that the fuel rod can be reliably supported until the lifetime of the fuel rod expires despite changes in the supporting conditions of the fuel rod.