HEAT TRANSFER FROM RADIOISOTOPIC POWER SOURCES IN POROUS MEDIA.
CALIFORNIA UNIV BERKELEY COLL OF ENGINEERING
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Heat transfer from radioisotopic full fuel capsules was studied experimentally and analytically for the situation in which the capsule is buried in a porous earth material saturated with water as would occur when such a capsule becomes accidentally buried in the ocean floor. Experimental conditions have been extended beyond the range reported previously by testing devices with different length-diameter ratios and using a greater range of burial depths. The previously reported correlation for natural convection has been modified to include the greater range of parameters and the effect of length to diameter ratio. Theoretical treatment of the free convesction case has been studied to establish the validity of the basic equations governing the system. Data have been obtained and analyzed for the nucleate boiling regime. Additional data have been obtained for the dryout condition and on the formation of crusts on the capsule. Author
- SNAP (Systems for Nuclear Auxiliary Power) Technology