| 摘要 |
<p>1,083,837. Reactors. ATOMIC ENERGY OF CANADA Ltd. July 16, 1965 [Aug. 21, 1964], No. 30334/65. Heading G6C. Burnout heat flux in a pressure tube boiling water reactor is increased by encircling the parallel rod fuel assembly in each pressure tube 5 with a number of rings 2 which are expanded in reactor operation so as to contact the pressure tube wall and thereby deflect the water film on the pressure tube inwards on to the fuel elements 1. The rings, which may be of zirconium or stainless steel, are located by notched wear pads 4 attached to the outer elements of the fuel assembly. The ring 2 is split at 3, and may be of triangular or rectangular cross-section.</p> |
