Spotlight Projects:

The Hopper Engineering Associates team provides practical and exciting solutions to unique problems in several industries. To showcase our recent work we choose a project of the month. An archive of previous winners can be found here.

December 2012 Project:

Spent Fuel Pool Water Loss due to Seismic Fluid Sloshing
Spent Fuel Pool Water Loss due to Seismic Fluid Sloshing
Challenge:

New mandates resulting from the Fukushima Earthquake required a nuclear power plant to determine the expected water loss from various open-top storage locations such as the spent fuel pool and raw water reservoirs due to seismic loading. The analyses were required to consider the dynamic sloshing behavior of the fluid surface resulting from potential long-period ground motions.

Resolution:

A finite element analysis using the ALE methodology was performed in order to predict the fluid loss. The model was excited with 5 sets of statistically independent ground motions which were specifically developed for the purpose of investigating long-period motions. The water volumes spilled from the spent fuel pool and raw water reservoir were calculated and reported to the client.

HEA has completed numerous jobs similar to the one shown above (Similar Projects)