To submit a request, click below on the link of the version you wish to order.
Only liaison officers are authorised to submit online requests. Rules for requesters are
available here.
BLOCKAGEV2.5R is an integrated calculational method with graphic user's interface for evaluating the potential for loss of emergency core cooling systems pump net positive suction head margin due to insulation/other debris layer buildup on suction strainers following a postulated loss of coolant accident in boiling water reactors. Blockage incorporates the results of multi-year NRC sponsored research documented in NUREG/CR-6224. It also provides a framework into which user can input plant-specific/insulation-specific information for performing analysis in accordance with Regulatory Guide 1.82, Rev. 2.
- D.V.Rao, W.Bernahl, J. Brideau, C. Shaffer, F. Souto
BLOCKAGE 2.5 User's Manual
NUREG/CR-6370 (SEA96-3104-010-A:3) (December 1996)
- C.J. Shaffer, W. Bernahl, J. Brideau, D. V. Rao
BLOCKAGE 2.5 Reference Manual
NUREG/CR-6371 (SEA96-3104-A:4) (December 1996)
PC with 80386 processor, 4 MB of RAM, 2 MB of free hard disk space, monitor capable of displaying 16 colors at a resolution of 640x480 pixels, mouse or other pointing device, and Windows 3.1 or Windows 95.
Contributed by: Radiation Safety Information Computational Center
Oak Ridge National Laboratory
Oak Ridge, Tennessee, USA
Developed by: Science and Engineering Associates, Inc.
Albuquerque, NM, USA
and Software Edges, Inc., Riverwoods, Illinois, USA