Experimental investigation of dryout for sodium boiling in narrow channels
- ed.
From 4th international seminar on heat and mass transfer in liquid metals; Trojir, Yugoslavia (6 Sep 1971). See CONF-710942-. To establish the critical conditions that lead to the onset of dryout (DO), sodium boiling experiments were executed in an inductively heated test section. The hydraulic as well as the thermodynamic behavior of a fuel element subchannel was simulated. The heat flux was varied between 100 to 300 W/cm/sup 2/. The tests resulted in the determination of three different initial conditions for the onset of dryout. The first condition exists if, starting from stationary two-phase flow, the sodium film dries off locally. This type of dryout compares well with that observed in two-phase water fiow. The other starting conditions are shown to be strongly interconnected with the stability characteristics of the boiling channel and the additional infiuence of incipient-boiling superheat. (auth)
- Research Organization:
- Kernforschungszentrum, Karlsruhe, Ger.
- NSA Number:
- NSA-29-000305
- OSTI ID:
- 4397971
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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