Design & Operational Experience of the NUHOMS®-24P Spent Fuel Storage System

by W. J. McConaghy, Pacific Nuclear Fuel Services Inc,
R. A. Lehnert, Pacific Nuclear Fuel Services Inc,
R. W. Rasmussen, Pacific Nuclear Fuel Services Inc,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1991


The NUHOMS Spent Fuel Storage System provides a safe and economical method for the dry storage of spent fuel assemblies either at an at-reactor Independent Spent Fuel Storage Installation (ISFSI) or at a centralized away-from-reactor (AFR) storage facility. The system consists of three major safety related components: a dry shielded canister (DSC) which provides a high integrity containment boundary and a controlled storage environment for the fuel; a reinforced concrete horizontal storage module (HSM) which houses the stored DSC and provides radiation shielding, protection against natural phenomena, and an efficient means for decay heat removal; and a transfer cask which provides for the safe shielded transfer of the DSC from the plant spent fuel pool to the HSM. The NUHOMS system is designed and licensed to the requirements of 10 CFR 72 and ANS/ANSI 57.9 for ISFSIs. The NUHOMS concept was developed in the early 1980s and it was selected to be part of a cooperative demonstration program among the U.S. Department of Energy, the Electric Power Research Institute, Carolina Power and Light, and NUTECH.

Subject Headings: Energy storage | Nuclear power | Fuels | Waste storage | Building design | Storage facilities | Electric power | Energy efficiency

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