TEMPERATURE CONTROL OF FUELED IRRADIATION CAPSULES BY VARIABLE CONDUCTANCE
An irradiation capsule for high-temperature fuel irradiattons was developed to permit constant temperature control over a range of about approximately 35% of design power. Control is achieved by the variation in thermal conductivity of a binary gas mixture in a control anaulus located between the test specimen and the capsule coolant. For the binary mixture, helium, which is a high-thermal conductivity gas, and a gas of lower conductivity, such as neon, nitrogen or angon may be used. The control method is unaffected by time or radiation damage. ln-pile operation of capsules using this method of control demonstrated that the desired temperature may be controlled to within approximately 25/sup o/F automatically, and probably more closely if manually controlled. The automatic control system also protects the capsule from temperature overshoot during a fast reactor recovery following a scram. (auth)
- Research Organization:
- General Atomic Div., General Dynamics Corp., San Diego, Calif.
- NSA Number:
- NSA-15-001571
- OSTI ID:
- 4122306
- Journal Information:
- Nuclear Sci. and Eng., Vol. Vol: 8; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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