-Some early reactor accidents are recalled together with their associated environmental consequences. One such consequence is the generation of radioactive aerosol. We describe the various physical processes that such an aerosol cloud undergoes within the secondary containment building. These physical processes are then brought together quantitatively in a balance equation for the aerosol size ...

The loading pattern of fuel bundles in a reactor core determines the characteristics of the reloading cycle. The problem of maximizing fuel utilization during a cycle may be formulated as a nonlinear mixed integer programming (NLMIP) problem, and has until now mostly been treated by heuristic optimization methods like simulated annealing. This paper evalutes the performance of state-of-the-art ...

The Advanced Liquid Metal Reactor (ALMR) Actinide Recycle System is being developed in the United States for application early in the 21st century. The ALMR is a major part of this system and has missions beginning with near-term (10 years), medium term (15-20 years), and long-term (beyond 20 years) horizons. These missions use the same reactor design with modifications only to the reactor core...

Recent advances in supercomputers and parallel solver techniques have enabled users to run large simulations problems using millions of processors. Techniques for multiphysics nuclear reactor core simulations are under active development in several countries. Most of these techniques require large unstructured meshes that can be hard to generate in a standalone desktop computers because of high...

The largest experience in operating nuclear power plants has been in nuclear naval propulsion, particularly aircraft carriers and submarines. This accumulated experience may become the basis of a proposed new generation of compact-sized nuclear power plants designs. The mission for nuclear powered submarines is being redefined in terms of signal intelligence gathering and special operations. Th...

Abstract The article is devoted to the issues of nuclear energy. It considers a simplified dynamic model simulating main processes in power plant, including heat generation reactor. basis proposed release reactor, relative neutron and temperature coolant hot thread circulation circuit.