NUCLEAR REACTOR FUEL ELEMENT Russian patent published in 2001 - IPC

FIELD: fuel elements for fast and thermal reactors. SUBSTANCE: fuel element has can with end plugs, core in the from of nuclear fuel particles distributed in contact material; can accommodates displacer in the form of structural-material rod arranged along entire length of fuel-element core; its sectional area is constant or varying along core ranging between 0.3 and 0.8 of internal sectional area of fuel element; nuclear fuel particles are, essentially, granules whose porosity is 2 to 30%. Provision is made for energy shaping in fuel assembly. EFFECT: enhanced reliability and power generation ability of fuel elements. 6 cl, 4 dwg