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Title: Advanced Two-Phase Flow Instrumentation Program. Quarterly progress report, April-June 1980

Technical Report ·
DOI:https://doi.org/10.2172/6351382· OSTI ID:6351382

Work performed to develop and evaluate liquid level sensors for in-vessel use in pressurized water reactors is described. Experiments were performed with three thermal-type level sensors in natural convection to saturated water and steam. Pressures in those tests ranged from 0.1 to 8.6 MPa (15 to 1250 psia). Thermal-type sensors were also tested in steam-water forced convection at low and moderate pressures. Sensor response was found to be insensitive to flow velocity and void fraction but sensitive to the presence or absence of a liquid phase. A series of meetings was held with representatives of three pressurized water reactor vendors regarding research goals and implementation of reactor-vessel monitoring instrumentation.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
DOE Contract Number:
AC05-84OR21400
OSTI ID:
6351382
Report Number(s):
NUREG/CR-1768; ORNL/NUREG/TM-414; ON: TI86002664
Country of Publication:
United States
Language:
English