Concept of a Small Modular SCWR With Horizontal Fuel Assemblies
Thomas S. Schulenberg, Ivan Otić
Abstract
Abstract Based on the concept of the high performance light water reactor (HPLWR), an innovative concept of a small modular reactor is presented, which shall have smaller peak cladding temperatures than the HPLWR due to better coolant mixing, and which shall enable a passive residual heat removal by natural convection. The core is designed with horizontal fuel assemblies including an internal water channel to improve moderation. Supercritical water is heated up in seven steps, when running through these assemblies, and the outer reflector around the core is used as mixing channels. More design optimization and analyses will be needed, however, to assess the feasibility of such a concept.
Topics & Concepts
Modular designSupercritical fluidCoolantNuclear engineeringCladding (metalworking)Mixing (physics)Materials scienceNatural convectionHeat transferLight-water reactorNuclear reactor coreMechanical engineeringMechanicsProcess engineeringEnvironmental scienceComputer scienceEngineeringThermodynamicsPhysicsComposite materialOperating systemQuantum mechanicsHeat transfer and supercritical fluidsNuclear reactor physics and engineeringSubcritical and Supercritical Water Processes