skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Two-Dimensional Neutronic and Fuel Cycle Analysis of the Transatomic Power Molten Salt Reactor

Abstract

This status report presents the results from the first phase of the collaboration between Transatomic Power Corporation (TAP) and Oak Ridge National Laboratory (ORNL) to provide neutronic and fuel cycle analysis of the TAP core design through the Department of Energy Gateway for Accelerated Innovation in Nuclear, Nuclear Energy Voucher program. The TAP design is a molten salt reactor using movable moderator rods to shift the neutron spectrum in the core from mostly epithermal at beginning of life to thermal at end of life. Additional developments in the ChemTriton modeling and simulation tool provide the critical moderator-to-fuel ratio searches and time-dependent parameters necessary to simulate the continuously changing physics in this complex system. Results from simulations with these tools show agreement with TAP-calculated performance metrics for core lifetime, discharge burnup, and salt volume fraction, verifying the viability of reducing actinide waste production with this design. Additional analyses of time step sizes, mass feed rates and enrichments, and isotopic removals provide additional information to make informed design decisions. This work further demonstrates capabilities of ORNL modeling and simulation tools for analysis of molten salt reactor designs and strongly positions this effort for the upcoming three-dimensional core analysis.

Authors:
 [1];  [1];  [1];  [2];  [2];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Reactor and Nuclear Systems Division
  2. Transatomic Power Corporation, Cambridge, MA (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Transatomic Power Corporation, Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE). Gateway for Accelerated Innovation in Nuclear (GAIN). Nuclear Energy Voucher Program
OSTI Identifier:
1340461
Report Number(s):
ORNL/TM-2016/742
NT0103000; NENT172; TRN: US1701507
DOE Contract Number:
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; REACTOR DESIGN; MOLTEN SALT REACTORS; COMPUTERIZED SIMULATION; NUCLEAR FUELS; REACTOR KINETICS; FUEL CYCLE; NEUTRON SPECTRA; SPECTRAL SHIFT; TIME DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS; MODERATORS; BURNUP; ENRICHMENT; LIFETIME; PERFORMANCE; REACTOR CORES

Citation Formats

Betzler, Benjamin R., Powers, Jeffrey J., Worrall, Andrew, Robertson, Sean, Dewan, Leslie, and Massie, Mark. Two-Dimensional Neutronic and Fuel Cycle Analysis of the Transatomic Power Molten Salt Reactor. United States: N. p., 2017. Web. doi:10.2172/1340461.
Betzler, Benjamin R., Powers, Jeffrey J., Worrall, Andrew, Robertson, Sean, Dewan, Leslie, & Massie, Mark. Two-Dimensional Neutronic and Fuel Cycle Analysis of the Transatomic Power Molten Salt Reactor. United States. doi:10.2172/1340461.
Betzler, Benjamin R., Powers, Jeffrey J., Worrall, Andrew, Robertson, Sean, Dewan, Leslie, and Massie, Mark. Sun . "Two-Dimensional Neutronic and Fuel Cycle Analysis of the Transatomic Power Molten Salt Reactor". United States. doi:10.2172/1340461. https://www.osti.gov/servlets/purl/1340461.
@article{osti_1340461,
title = {Two-Dimensional Neutronic and Fuel Cycle Analysis of the Transatomic Power Molten Salt Reactor},
author = {Betzler, Benjamin R. and Powers, Jeffrey J. and Worrall, Andrew and Robertson, Sean and Dewan, Leslie and Massie, Mark},
abstractNote = {This status report presents the results from the first phase of the collaboration between Transatomic Power Corporation (TAP) and Oak Ridge National Laboratory (ORNL) to provide neutronic and fuel cycle analysis of the TAP core design through the Department of Energy Gateway for Accelerated Innovation in Nuclear, Nuclear Energy Voucher program. The TAP design is a molten salt reactor using movable moderator rods to shift the neutron spectrum in the core from mostly epithermal at beginning of life to thermal at end of life. Additional developments in the ChemTriton modeling and simulation tool provide the critical moderator-to-fuel ratio searches and time-dependent parameters necessary to simulate the continuously changing physics in this complex system. Results from simulations with these tools show agreement with TAP-calculated performance metrics for core lifetime, discharge burnup, and salt volume fraction, verifying the viability of reducing actinide waste production with this design. Additional analyses of time step sizes, mass feed rates and enrichments, and isotopic removals provide additional information to make informed design decisions. This work further demonstrates capabilities of ORNL modeling and simulation tools for analysis of molten salt reactor designs and strongly positions this effort for the upcoming three-dimensional core analysis.},
doi = {10.2172/1340461},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 15 00:00:00 EST 2017},
month = {Sun Jan 15 00:00:00 EST 2017}
}

Technical Report:

Save / Share: