The greater safety should come via the use of passive safety features that operate without human intervention, a concept already implemented in some conventional nuclear reactor types. Ideally, modular reactors will reduce on-site construction, increase containment efficiency, and are claimed to enhance safety. Some SMR designs, typically those using Generation IV technologies, aim to secure additional economic advantage through improvements in electrical generating efficiency from much higher temperature steam generation. Many SMR proposals rely on a manufacturing-centric model, requiring many deployments to secure economies of unit production large enough to achieve economic viability. SMRs are typically anticipated to have an electrical power output of less than 300 MW e (electric) or less than 1000 MW th (thermal). Both thermal-neutron reactors and fast-neutron reactors have been proposed, along with molten salt and gas cooled reactor models. Designs range from scaled down versions of existing designs to generation IV designs. The term SMR refers to the size, capacity and modular construction only, not to the reactor type and the nuclear process which is applied. Small modular reactors ( SMRs) are a proposed class of nuclear fission reactors, smaller than conventional nuclear reactors, which can be built in one location (such as a factory), then shipped, commissioned, and operated at a separate site. Illustration of a light water small modular nuclear reactor (SMR) Small nuclear reactors that can be manufactured off-site and transported
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |