Transition boiling heat transfer and the film - transition regime
The Berenson flat-plate transition-boiling experiment were recreated with a reduced thermal resistance in the heater, and an improved access to those portions of the transition-boiling regime that have a steep negative slope. Test were made in Freon-113, acetone, n-pentane, and benzene boiling on horizontal flat copper heaters that have been mirror-polished, roughened, or teflon-coated. The resulting data reproduce and clarify certain features observed by Berenson - the modest surface-finish dependence of boiling burnout, and the influence of surface chemistry on both the minimum heat flux and the mode of transition boiling, for example. A rational scheme of correlation yields a prediction of the heat flux in what Witte and Lienhard previously identified as the transition film-boiling regime. It is also shown how to calculate the heat flux at the boundary between the pure-film, and the transition-film, boiling regimes, as function of the advancing contact angle.
- Research Organization:
- Houston Univ., TX (USA)
- OSTI ID:
- 5247821
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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