MULTI-ROD BURNOUT AT HIGH PRESSURE
Thirty-two burnout points were obtained on an electrically heated assembly of nine simulated fuel rods in a square channel. The hydraulic diameter was 0.52 in., and the 0.375-in.-dia. rods were uniformly heated over an 18-in. length. Test conditions ranged from 0.01 to 0.35 in steam quality at pressures of 1000 and 1400 psia, and mass velocities of 0.56 x 10/sup 6/ and 1.12 x 10/sup 6/ lb/hr-ft/sup 2/. Burnout was found to occupy only at locations which faced unheated surfaces. Burnout heat-flux relationship with bulk terminal quality was unaltered by a relative increase of 22% in corner rod heat flux. Burnout limit design curves, which are based on single rod measurements, pass through or are below these multi-rod data. Comparison with similar single rod data indicates a slightly different relation of burnout heat flux with quality and the opposite trend with mass velocity. The data compare favorably with those of other investigators. (auth)
- Research Organization:
- General Electric Co. Atomic Power Equipment Dept., San Jose, Calif.
- NSA Number:
- NSA-17-022788
- OSTI ID:
- 4717511
- Report Number(s):
- GEAP-3940
- Country of Publication:
- United States
- Language:
- English
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