MERCHANT MARINE SHIP REACTOR

Patent · Mon Oct 10 04:00:00 EDT 1960

OSTI ID:4796625

A nuclear reactor for the propulsion of merchant marine ships is described that comprises a sealed pressure vessel having a top closure and enclosing an active core of a group of vertical fuel assemblies. Each of these assemblies has longitudinal passages to permit a flow of the light water moderator. First and second baffle assemblies are arranged opposite the top and bottom ends respectively of the core. The first baffle assembly includes means for directing the moderator fluid into the longitudinal passages of an outer portion of the fuel assemblies, forming in this manner a downward second pass of the fluid through the reactor. The second baffle assembly includes means for directing outgoing moderator fluid from the outer portion of the fuel assemblies into the remaining inner portion of the fuel assemblies and the spaces in between, forming in this manner an upward third pass of the fluid through the reactor. Means including thermal shielding are provided for directing the moderator fluid entering the pressure vessel along the outside of the reactor core into the first baffle assembly, forming in this manner an upward first pass through the reactor. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-028593
• OSTI ID: 4796625
• Report Number(s): FR 1246458
• Country of Publication: France
• Language: English

Related Subjects

CLOSURES
CONFIGURATION
CONFINEMENT
FINS
LIQUID FLOW
PATENT
PRESSURE VESSELS
PROPULSION
REACTOR CORE
REACTOR TECHNOLOGY
REACTORS
SEALS
SHIELDING
SHIPS
THERMAL INSULATION
WATER COOLANT
WATER MODERATOR