IMPROVEMENTS RELATING TO HEAT CARRIER SYSTEMS IN PARTICULAR FOR GAS COOLED REACTORS

Patent · Tue Jun 07 04:00:00 EDT 1960

OSTI ID:4821338

Improvements are described for heat carrier systems, especially for gas- cooled reactors, comprising a multitude of tubes passing through the core of a nuclear reactor, these tubes being interconnected at their extremities by headers situated outside the core. At least the parts of the tube system where these tubes are connected with the different headers are held at a low temperature by means of internal thermal insulation and external cooling; in this manner different thermal expansions in the tube system are avoided. Preferably, the system is used for nuclear reactors having a liquid, in particular heavy water, as moderator. Suitably, the said heat insulation may be obtained by providing in the tubes a double wall, with an intermediate gas layer at the same pressure as the gaseous heat carrier, the internal wall of the double wall being provided with devices able to absorb expansions. (NPO)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-006198
• OSTI ID: 4821338
• Report Number(s): FR 1236090
• Country of Publication: France
• Language: English

Related Subjects

CONFIGURATION
COOLANT LOOPS
COOLING
EFFICIENCY
EXPANSION
FAILURES
GAS COOLANT
GAS FLOW
HEAT TRANSFER
HEAVY WATER MODERATOR
HIGH TEMPERATURE
LAYERS
LIQUIDS
LOW TEMPERATURE
MODERATORS
PATENT
PLANNING
POWER PLANTS
PRESSURE
REACTOR CORE
REACTOR TECHNOLOGY
TEMPERATURE
THERMAL INSULATION
THERMAL STRESSES
TUBES
VARIATIONS