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Removal of Iodine and Particles by Sprays in the Containment Systems Experiment

R. K. Hilliard, A. K. Postma, J. D. McCormack,*, L. F. Coleman**

Nuclear Technology

Volume 10 / Number 4 / April 1971 / Pages 499-519


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Eight large-scale spray experiments have been made in the 26 500 ft3 Containment Systems Experiment (CSE) vessel. In each experiment a major parameter was changed. Spray fluxes ranged from 0.025 to 0.3 gal/(min ft2). Spray drop size was 770- or 1210-µm mass median diameter (MMD). Atmospheric condition was air at room temperature and pressure or steam-air initially at 250°F, 48 psia. Three types of spray solutions were used: boric acid, pH 5; boric acid plus NaOH, pH 9.5; and boric acid plus 1 wt% Na2S2O3 with NaOH added to pH 9.5. The only major parameters not varied were the drop fall height (38 ft) and the gas-to-liquid volume ratio (∼80).

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