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Title: Experimental studies of the air coolability of triga reactors following a loss-of-coolant accident

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:6614009
; ; ; ; ;

To investigate the coolability of a uniformly heated tube by free convection of atmospheric air, heat transfer experiments were conducted using vertical open annuli with adiabatic outer walls. To examine the effect of the annulus ratio on the coolability of the heated tube, the experiments employed four annuli (diameter ratios of 1.155, 1.33, 1.63, and 12.0). The operating parameters included heat fluxes up to 1.38 W/cm/sup 2/ with a corresponding surface temperature of 856 K. The results, extrapolated to 1200 K, were used to provide a qualitative estimate of the coolability of multirod bundles, as a function of the equilibrium surface temperature and the pitch-to-diameter (P/D) ratio.

Research Organization:
The Univ. of New Mexico, Dept. of Chemical and Nuclear Engineering, Albuquerque, NM 87131
OSTI ID:
6614009
Journal Information:
Nucl. Technol.; (United States), Vol. 76:3
Country of Publication:
United States
Language:
English

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