Burnout Heat Flux Research Articles

A Method of Correlating Burnout Heat Flux Data

Analysis of burnout heat flux is undertaken by considering the burnout heat flux to be the sum of the flux required to initiate nucleate boiling and of an incremental flux required to cause burnout. For data taken at a pressure of 2000 psia, the method of analysis correlated the majority of the data with an accuracy of ±17 per cent.

Closure to “Discussion of ‘Investigation of Burnout Heat Flux in Rectangular Channels at 2000 Psia’” (1958, Trans. ASME, 80, pp. 400–401)

Closure to “Discussion of ‘Investigation of Burnout Heat Flux in Rectangular Channels at 2000 Psia’” (1958, Trans. ASME, 80, pp. 400–401)

Investigation of Burnout Heat Flux in Rectangular Channels at 2000 Psia

Abstract Burnout heat-flux data were obtained under conditions of approximately zero exit quality and bulk boiling at the exit of electrically heated test specimens. These specimens were long, narrow channels with various slot thicknesses, surfaces, materials, and length-to-diameter ratios. Tests were run at 2000 psia and mass velocities from approximately 0.2 × 106 to 3 × 106 lb/hr-sq ft. The effect of inclining the channel at 45 deg also was investigated. The rectangular channel burnout results are in reasonable agreement with data previously obtained for round tubes. A design equation is suggested which yields a conservative estimate of the burnout heat flux in the low subcooling and quality regions for the range of variables investigated herein. A burnout loop and method of operation are described.