Measurements of hideout phenomena in tube-support-plate crevices

Journal Article · Mon Apr 01 04:00:00 EST 1991 · Nuclear Technology; (United States)

OSTI ID:5084938

Wang, R C; Pan, C; Tsai, C ^[1]

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1. National Tsing-Hua Univ., Dept. of Nuclear Engineering 101, Section 2, Kuang Fu Road, Hsinchu 30043 (TW)

This paper reports on an autoclave and a water treatment and monitoring system simulating the secondary side of a steam generator used to investigate the hideout phenomena of sodium chloride in a tube-support-plate crevice. The primary-side heating tube is simulated by an internal heater. The experiments are performed at 1 atm pressure. The effects of heat flux, bulk concentration, crevice width, and the presence of a porous medium are investigated. It is found that the solute concentrates heavily near the upper end of the crevice. This concentration distribution in the axial direction is confirmed by a model developed in a parallel study. The hideout rate increases with increasing heat flux and bulk concentration. The concentration level in the crevice at a given time increases with increasing heat flux and bulk concentration and with decreasing crevice width. The presence of a porous medium in the crevice significantly enhances the concentration effect.

• OSTI ID: 5084938
• Journal Information: Nuclear Technology; (United States), Journal Name: Nuclear Technology; (United States) Vol. 94:1; ISSN NUTYB; ISSN 0029-5450
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKALI METAL COMPOUNDS
ANALOG SYSTEMS
AUTOCLAVES
BOILERS
BULK DENSITY
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COOLING SYSTEMS
CORROSION
CREVICE CORROSION
DENSITY
FUNCTIONAL MODELS
HALIDES
HALOGEN COMPOUNDS
HEAT FLUX
LOW PRESSURE
MATERIALS
MONITORING
PHYSICAL PROPERTIES
POROUS MATERIALS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR MONITORING SYSTEMS
REACTOR SIMULATORS
SIMULATION
SIMULATORS
SODIUM CHLORIDES
SODIUM COMPOUNDS
STEAM GENERATORS
TUBES
VAPOR GENERATORS
WATER TREATMENT