Reference number : GC-2017-Q1-00477, amendment number : , agreement type : G, recipient legal name : Buijs, Adriaan (McMaster University), recipient country : CA, recipient province : nan, recipient city : Ontario, recipient postal code : nan, program name english : Engage Grants for Universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : Terrestrial Energy of Oakville, Ontario has recently received a major award from Sustainable Development_x000D_
Technology Canada, allowing it to proceed with the development of its promising novel nuclear reactor design,_x000D_
the Integral Molten Salt Reactor (IMSR). This reactor has a number of features which places it well in the_x000D_
current global electricity market, from the perspectives of cost, size, maintainability and safety._x000D_
One of the outstanding features of this reactor design is its inherent safety. As the nuclear fuel is dissolved in_x000D_
molten salts, there is no possibility for a core meltdown. Also, by design, the reactor has a negative reactivity_x000D_
coefficient of temperature. This means that an inherent feedback mechanism will shut down the chain reaction_x000D_
in the core when the temperature of the core rises, as may happen under hypothetical accident conditions._x000D_
The reactivity coefficient of temperature is a consequence of the nuclear-physics processes that take place in_x000D_
the core and govern the creation and absorption of neutrons in the chain reaction. It is a relatively small effect_x000D_
arising from the difference of competing effects, which for the IMSR was determined to be negative over the_x000D_
lifetime of the reactor._x000D_
The study proposed here will determine the uncertainty in the value of the reactivity coefficient of temperature_x000D_
for the IMSR, which is essential to establish the margin of safety for reactor operation over its lifetime. The_x000D_
study will use state-of-the-art modelling tools developed internationally for nuclear safety analysis. In addition_x000D_
to calculations for the proposed fuel composition, the study will also be applied to a number of alternate fuel_x000D_
compositions._x000D_
The study proposed here is an essential contribution to demonstrating the inherent safety features of the design., program purpose french : Terrestrial Energy of Oakville, Ontario has recently received a major award from Sustainable Development_x000D_
Technology Canada, allowing it to proceed with the development of its promising novel nuclear reactor design,_x000D_
the Integral Molten Salt Reactor (IMSR). This reactor has a number of features which places it well in the_x000D_
current global electricity market, from the perspectives of cost, size, maintainability and safety._x000D_
One of the outstanding features of this reactor design is its inherent safety. As the nuclear fuel is dissolved in_x000D_
molten salts, there is no possibility for a core meltdown. Also, by design, the reactor has a negative reactivity_x000D_
coefficient of temperature. This means that an inherent feedback mechanism will shut down the chain reaction_x000D_
in the core when the temperature of the core rises, as may happen under hypothetical accident conditions._x000D_
The reactivity coefficient of temperature is a consequence of the nuclear-physics processes that take place in_x000D_
the core and govern the creation and absorption of neutrons in the chain reaction. It is a relatively small effect_x000D_
arising from the difference of competing effects, which for the IMSR was determined to be negative over the_x000D_
lifetime of the reactor._x000D_
The study proposed here will determine the uncertainty in the value of the reactivity coefficient of temperature_x000D_
for the IMSR, which is essential to establish the margin of safety for reactor operation over its lifetime. The_x000D_
study will use state-of-the-art modelling tools developed internationally for nuclear safety analysis. In addition_x000D_
to calculations for the proposed fuel composition, the study will also be applied to a number of alternate fuel_x000D_
compositions._x000D_
The study proposed here is an essential contribution to demonstrating the inherent safety features of the design., agreement title english : Evaluating the Uncertainty in the Temperature Reactivity Coefficient of Terrestrial Energy's Integral Molten Salt Reactor Design, agreement title french : Evaluating the Uncertainty in the Temperature Reactivity Coefficient of Terrestrial Energy's Integral Molten Salt Reactor Design, agreement number : EGP, agreement value : 25000.0, agreement start date : 2017-06-14, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year. (2017-2018 to 2018-2019), additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier. (2017-2018 à 2018-2019), owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada