CARA Design Criteria for HWR Fuel Burnup Extension

FLORIDO, P.; BERGALLO, J.; BRASNAROF, D.; MARINO, A.; JUANICO

IAEA-TECDOC

IAEA (International Atomic Energy Agency)

Lugar: Viena; Año: 2002 vol. 1 p. 216 - 227

A new concept for HWR fuel bundles, namely CARA, is presented. The CARA design allows to improve all the major performances in the PHWR fuel technology. Among others, it reaches higher burnup and thermohydraulic safety margins, together with lower fuel pellet temperatures and Zry/HM mass ratio. Moreover, it keeps the fuel mass content per unit length and the channel pressure drop by using a single diameter of fuel rods.