Condensation during gravity driven ECC: Experiments with PACTEL

Technical Report · Fri Sep 01 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/106997· OSTI ID:106997

Munther, R.; Kalli, H. ^[1]; Kouhia, J. ^[2]

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1. Lappeenranta Univ. of Technology (Finland)
2. Technical Research Centre of Finland, Lappeenranta (Finland)

This paper provides the results of the second series of gravity driven emergency core cooling (ECC) experiments with PACTEL (Parallel Channel Test Loop). The simulated accident was a small break loss-of-coolant accident (SBLOCA) with a break in a cold leg. The ECC flow was provided from a core makeup tank (CMT) located at a higher elevation than the main part of the primary system. The CMT was pressurized with pipings from the pressurizer and a cold leg. The tests indicated that steam condensation in the CMT can prevent ECC and lead to core uncovery.

• Research Organization: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Systems Technology; American Nuclear Society, La Grange Park, IL (United States); American Inst. of Chemical Engineers, New York, NY (United States); American Society of Mechanical Engineers, New York, NY (United States); Canadian Nuclear Society, Toronto, ON (Canada); Japan Society of Multiphase Flow, Kyoto (Japan)
• OSTI ID: 106997
• Report Number(s): NUREG/CP--0142-Vol.1; CONF-950904--Vol.1; ON: TI95017077
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
DIAGRAMS
ECCS
EXPERIMENTAL DATA
HYDRAULICS
LOSS OF COOLANT
PWR TYPE REACTORS
REACTOR SAFETY
TESTING