Monorail Rake

Monorail Rake

Challenge: The Traversing Bar Rake System (TBRS) is a trash rack raking system for the intake structure of a power plant. It consists of a monorail supported by several columns and a mechanized rake. The purpose of HEA's work was to establish the static seismic loads...

Spent Fuel Handling Machine

Spent Fuel Handling Machine

Challenge: Modify an existing Spent Fuel Handling Machine (SFHM) by raising its hoists approximately four feet to provide the lift range necessary to load the Dry Storage Canister/Transfer Cask with spent fuel assemblies. The existing system was modified once before...

Fuel Storage Blast Analysis

Fuel Storage Blast Analysis

Challenge: A nuclear power plant currently stores spent fuel in dry storage at an Independent Spent Fuel Storage Installation (ISFSI) at the site. The ISFSI consists of Dry Shielded Canisters (DSC) loaded with spent fuel which is housed in concrete Horizontal Storage...

Fuel Rod Crush Stress

Fuel Rod Crush Stress

Challenge: Our firm was asked to calculate the stresses on two types of nuclear fuel rods due to a crushing load of an accidental side drop. The fuel rods are assembled in a basket containing several stacks of fuel rods. The fuel rods are separated by spacer grids,...

DDAFW Superstructure Design

DDAFW Superstructure Design

Challenge: A new De-Ionized Water Storage Tank and associated equipment, including an emergency diesel generator, are to be installed on a concrete mat and caisson foundation at the RE Ginna Nuclear Plant. Although the tank is designed to be exposed to the...