Thermal mixing in a model cold leg and downcomer at low flow rates. [PWR]

Technical Report · Tue Mar 01 00:00:00 EST 1983

OSTI ID:6459156

Rothe, P H; Fanning, M W

This report describes an experimental program of fluid-mixing experiments performed at atmospheric pressure in a 1/5-scale, transparent model of a cold leg and downcomer typical of Combustion Engineering and Westinghouse Pressurized Water Reactors (PWRs). The test program simulated steady-state conditions thought to be extreme for small break Loss of Coolant Accidents (LOCAs). Analysis of transient and steady-state temperature records indicates that the cold High-Pressure Injection (HPI) coolant water and the hot primary coolant water are well mixed prior to flowing over the reactor vessel wall.

• Research Organization: Creare, Inc., Hanover, NH (USA)
• OSTI ID: 6459156
• Report Number(s): EPRI-NP-2935; ON: DE83901946
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

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