HBWR VOID EXPERIMENTS
Technical Report
·
OSTI ID:4157490
Measurements of the void reactivity effect in the Halden Boiling Reactor (HBWR) were made at room temperature as a function of the position and the void fraction using the oscillating the water level inside aluminum shrouds, both with and without fuel rods inside. Measurements were made with different core sizes, the excess reactivity due to an increased water level being compensated by insertion of control rods. The interaction effects of voids were investigated by introducing static voids in annular channels adjacent to the oscillated chnnnel and by introducing static voids within the shrouds of the neighboring six fuel elements. Calculations were made of changes in: the neutron absorption and slowing down parameters, effective axial diffusion coefficient, and the effective radial diffusion coefficient. The results were in gocd agreement with experimental values. The effect of neutron streaming was calculated by the formulas of Behrens and Benoist. (C.J.G.)
- Research Organization:
- Norway. Institutt for Atomenergi. OEEC Halden Reaktor Prosjekt
- NSA Number:
- NSA-14-022597
- OSTI ID:
- 4157490
- Report Number(s):
- HPR-6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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