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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Ribbon-cutting scheduled for Advanced Manufacturing Collaborative
Energy Secretary Chris Wright will attend the opening of the Advanced Manufacturing Collaborative in Aiken, S.C., on August 7. Wright will deliver remarks and join Savannah River National Laboratory leadership and partners for a ribbon-cutting ceremony.
Eduardo V. Depiante, John E. Meyer
Nuclear Science and Engineering | Volume 104 | Number 2 | February 1990 | Pages 169-182
Technical Paper | doi.org/10.13182/NSE90-A23713
Articles are hosted by Taylor and Francis Online.
The analysis of transients in nuclear power plants is a complex problem normally requiring use of simulation tools. One of these tools, known as parity simulation, exploits the concept of electrical analogs of a physical system. Electrical analogs of the components of a nuclear plant are constructed and interconnected in a highly user-oriented facility known as a parity simulator. Parity simulation originated in the study of electronic network transients and spread to neutronic and single-phase flow applications. This work focuses on the application of parity simulation to transient thermal-hydraulic two-phase flow. The development of a two-phase flow element is described. The governing mass, momentum, and energy equations along with other conditions are applied to a pipe section. The resulting model is then used to construct a circuit analog. The proposed circuit analog requires nonstandard components, the design and implementation of which is discussed. Subsequently, a formulation for a steam generator is given. Results obtained for different cases are presented. Comparison with reference numerical solutions shows general agreement in both cases.