1983•Unpublished venueOpen access

Effects of the reactor coolant pumps following a small break in a Westinghouse PWR

J Koenig

Abstract

Numerical simulations of the thermal-hydraulic events following a small cold-leg break in a Westinghouse pressurized water reactor were performed to address the pumps-on/off issue. The mode of pump operation was varied in each calculation to ascertain the optimum mode. It was found that pump operation was not critical for this break size and location because the fuel rods remained cool in all accidents analyzed. In terms of system mass, however, it was preferable to leave the pumps in operation.

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Key concepts: Nuclear engineering, Thermal hydraulics, Coolant, Rod, Pressurized water reactor, Hydraulics, Environmental science, Engineering