1994
DOI: 10.2514/3.541
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Effects of buoyancy on the critical heat flux in forced convection

Abstract: The critical heat flux (CHF) for R-113 was measured in forced convection over a flat surface at various orientations for relatively low flow velocities corresponding to Reynolds numbers ranging between 3000-6500 in the test section. As expected, the CHF was found to depend upon the orientation of the buoyancy. Although the buoyancy force acting on the vapor generally dominates over the flow inertia in this flow range, the inertia would continue to be substantial if the gravity was to be reduced significantly. … Show more

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Cited by 33 publications
(9 citation statements)
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“…In the past, some authors also analysed the effect of surface orientation on pool boiling CHF: Vishnev (1974), El Genk and Guo (1993), Chang and You (1996), Brusstar and Merte (1994) and Priarone (2005). All these correlations are based on Zuber's relation and multiply the correlation for q ¼ 0 by an expression function of the orientation angle.…”
Section: Critical Heat Fluxmentioning
confidence: 98%
“…In the past, some authors also analysed the effect of surface orientation on pool boiling CHF: Vishnev (1974), El Genk and Guo (1993), Chang and You (1996), Brusstar and Merte (1994) and Priarone (2005). All these correlations are based on Zuber's relation and multiply the correlation for q ¼ 0 by an expression function of the orientation angle.…”
Section: Critical Heat Fluxmentioning
confidence: 98%
“…7 compares experimental data with those yielded by various correlations: the Vishnev correlation (10) and the Chang and You [11] correlation: CHF/CHF max = 1.0 − 0.00120θ tan(0.414θ) − 0.122 sin(0.318θ) (11) and the Brusstar and Merte [29] correlation, which takes into consideration the sliding effect of bubbles on inclined downward-facing surfaces and is valid only for angles from 90 • to 180 • :…”
Section: Critical Heat Flux Data and Correlationsmentioning
confidence: 98%
“…Recently, Brusstar and Merte (1994), and Brusstar et al (1997) developed an empirical CHF model for pool and flow boiling. They used a copper plate to investigate the surface orientation effect in the R-113 pool.…”
Section: Surface Orientation Effectmentioning
confidence: 99%