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The IMSR belongs to the denatured molten salt reactor (DMSR) [7] class of molten salt reactors (MSR). It is designed to have all the safety features associated with the Molten Salt class of reactors including low pressure operation (the reactor and primary coolant is operated near normal atmospheric pressure), the inability to lose primary ...
Example of a molten-salt reactor scheme. A molten-salt reactor (MSR) is a class of nuclear fission reactor in which the primary nuclear reactor coolant and/or the fuel is a mixture of molten salt with a fissile material. Two research MSRs operated in the United States in the mid-20th century.
MoltexFLEX is a British nuclear energy company developing small modular molten salt reactors.Their reactor designs, termed "FLEX reactors", are stable salt reactors, and feature a hybrid approach whereby fuel assemblies similar to current light water reactors containing the liquid salt fuel mixture are submerged in a pool of liquid salt coolant.
The company is developing a 195 MWe Integral Molten Salt Reactor (IMSR) design [2] and completed its Pre-Licensing Vendor Design Review [3] in 2023 with the Canadian Nuclear Safety Commission. [4] The IMSR uses molten salt reactor technology and is one example of a small modular reactor (SMR) characteristic of Generation IV nuclear reactor designs.
The coolant salt in the SSR-W reactor tank is a chloride-based coolant salt. The coolant also contains an agent to reduce its redox potential, making it virtually non-corrosive to standard types of steel. The reactor tank, support structures and heat exchangers can therefore be built with standard 316L stainless steel.
Decay heat is the heat released as a result of radioactive decay. This heat is produced as an effect of radiation on materials: the energy of the alpha, beta or gamma radiation is converted into the thermal movement of atoms. Decay heat occurs naturally from decay of long-lived radioisotopes that are primordially present from the Earth's formation.
The U.S. Nuclear Regulatory Commission is issuing a construction permit for a new type of nuclear reactor that uses molten salt to cool the reactor core. The NRC is issuing the permit to Kairos ...
The fuel salt circulates from the reactor to the primary fuel pump, then the Primary Heat Exchanger (PHX), where it then flows back into the reactor. The primary fuel loop is a forced flow loop system. The components that are part of the primary fuel loop are the reactor, PHXs, pump bowl, pump, and hot and cold leg piping.