Experimental Results of Subassembly Heat-up Rate Test
- Argonne National Laboratory (ANL), Argonne, IL (United States)
Heat transfer calculations are being relied upon to specify the maximum decay heat that an EBR-II subassembly may have and still safely and passively withstand a loss-of-forced cooling event in the Hot Fuels Examination Facility-South (HFEF-S) air cell while awaiting reprocessing. From preliminary analysis, a limit of 500 W has been proposed in order to assure adequate passive cooling. To provide a benchmark for more precise calculations, a preirradiated 91 element EBR-II core-type subassembly, with approximately 500 W of decay power, was instrumented and the cooling flow to it was stopped. During the loss of forced cooling the temperatures of the hex duct and center element were measured and recorded. The results of the test were a maximum measured fuel element temperature of 524°C (975°F) for the case where the subassembly was exposed to the cell air flow, and 548°C (1019°F) with the subassembly isolated from the cell air flow by a surrounding metal shroud.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy (NE)
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 2448086
- Report Number(s):
- ANL-IFR--106; 189116
- Country of Publication:
- United States
- Language:
- English
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