Chemical Effects on Head Loss across Containment Sump Strainer under Post-LOCA Environment

GSI-191: Experimental Studies of Loss-of-Coolant-Accident-Generated Debris Accumulation and Head Loss with Emphasis on the Effects of Calcium Silicate Insulation

ii iii ABSTRACT This report documents experiments conducted to determine the head-loss characteristics associated with calcium silicate insulation debris accumulated on a sump screen. These experiments were performed under the direction of Los Alamos National Laboratory in facilities operated by the Civil Engineering Department of the University of New Mexico. Experiments confirmed that calcium...

User Need Request on the Acceptability of the Arrhenius Methodology for Environmental Qualification (eq) for Loca and Post-loca Environments

In a memorandum dated November 25, 1997, NRR requested RES to perform appropriate research and provide independent confirmation of the applicability of Arrhenius methodology to meet the environmental qualification (EQ) requirements for LOCA and post-LOCA environments. RES was requested to support the NRR reviews of licensees' requests for (1) power uprate amendments, (2) reevaluation of qualifi...

Nuclear Fuel Behaviour in Loss-of-coolant Accident (LOCA) Conditions

Communication Across Fault-Containment Firewalls on the SGI Origin

Scalability and reliability are inseparable in high-performance computing. Fault-isolation through hardware is a popular means of providing reliability. Unfortunately, such isolation also increases communication latencies: typically, one has to drop into and out of the kernel to communicate between failure domains. On the other hand, relaxing fault isolation domains allows e cient communication...

Effects of vestibular loss on head stabilization in response to head and body perturbations.

Control of head position during postural responses is important to facilitate both the interpretation of vestibular signals and the stabilization of gaze. In these experiments, we compared head stabilization for two different postural tasks: 1) in response to perturbations at the head, and 2) in response to perturbations induced at the support surface, which perturb both body and head position....