Core and transient design of a BWR for the next century

Basic parameters for the core and transient design of the BWR for the next century is investigated, and a reference core design is selected for fundamental studies on the core and transient characteristics. A previous paper in ICONE-3 showed that the reference core design has potential for the core design flexibility. This paper reports the basis of the reference core selection in conformity with utilities' requirements and the progress of studies on the core and transient design of the reference core. A new concept called functional control rod layout is selected as a candidate for the reference core