System and Method for Minimizing Movement of Nuclear Fuel Racks During a Seismic Event, US 9,991,010 B2, 2018 (Fuel Rack)

Primary Inventor: Krishna P. Singh
Contributing Inventor(s): Charles Bullard
Date of Publication: June 5, 2018
Status: Granted
Jurisdiction: US
Equipment Type: Fuel Rack
Docket Number: HOL-071
Application Number: 14/424,149
Patent NumberUS 9,991,010 B2

Prior Publication Data: US 2015/0310947 A1

Related U.S. Application Data: Provisional application No. 61/694,058, filed on August 28, 2012.

PCT Filed: August 28, 2013
PCT No: PCT/US2013/057115
PCT Publication NumberWO 2014/036158 A2
PCT Publication Date: March 6, 2014

Abstract: A system for storing nuclear fuel, the system including a storage rack and a bearing pad. The storage rack includes an array of cells, each cell configured to receive and store nuclear fuel rods, a base plate configured to support the array of cells, and a support structure configured to support the base plate and to allow cooling fluid to circulate under and up through apertures in the base plate. The bearing pad is coupled to the support structure and is configured to limit lateral movement of the storage rack independent from lateral movement of the bearing pad. The base plate defines a base plate profile in a horizontal plane of the base plate, and the bearing pad defines a bearing pad profile in the horizontal plane of the base plate, wherein the bearing pad profile extends outside of the base plate profile.