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Nuclear Hybrid Energy System Reliability Model Progress Report

by Askin Guler Yigitoglu, Thomas J Harrison, Michael S Greenwood
Publication Type
ORNL Report
Publication Date

A Nuclear Hybrid Energy System (NHES) uses a nuclear reactor as the basic power generation unit, and the power generated is used by multiple customers as combinations of thermal power or electrical power. The definition and architecture of a particular NHES can be adapted based on the needs and opportunities of different localities and markets. For example, locations in need of potable water may be best served by coupling a desalination plant to the NHES. Similarly, a location near oil refineries may have a need for emission-free hydrogen production.

Using the flexible, multi-domain capabilities of Modelica, Argonne National Laboratory, Idaho National Laboratory, and Oak Ridge National Laboratory are investigating the dynamics (e.g., thermal hydraulics and electrical generation/consumption) and cost of a hybrid system. This report examines the NHES work underway, emphasizing the control system developed for individual subsystems and the overall supervisory control system.

Mention Safety by Design

The evaluation performed consisted of an estimation of the component failure rate and the annual probability missile ejection.