Nucleate pool boiling

Anderson, D. L. J., R. L. Judd, and H. Merte, Jr., 1970, Site Activation Phenomena in Saturated Pool Nucleate Boiling, ASME Paper 70-HT-14, Fluids Engineering, Heat Transfer, and Lubrication Conf., Detroit, MI. (2)... 

Figure 3.4-9. B-C Nucleate boiling. D-E-F Film boiling 3.4.3.3 Boiling Pool boiling...

Figure 5 Contribution of the various heat transfer mechanisms during subcooled pool nucleate boiling.

Numerical simulations of the bubble dynamics during pool nucleate boiling have been earried out without any approximation of the bubble shapes. The effeet of mierolayer evaporation is ineluded. By foeusing on the miero and maero regions, the length scales from nano to miero to macro have been connected. 

Son, G, Ramanujapu, N, and Dhir, V.K. (2002) Numerical simulation of bubble merger process on a single nucleation site during pool nucleate boiling, Jowwa/ of Heat Transfer, Vol. 124, pp. 51-62. 

Once nucleation has been initiated on a given site, then repeated bubbling from that site may occur even if the heat flux is reduced below the value originally necessary to initiate nucleation this hysteresis effect is discussed further in the section on parametric effects in pool nucleate boiling below. 

Enhancement of Pool Nucleate Boiling Heat Transfer. Study of the enhancement of boiling heat transfer has been one of the fastest-growing areas of research in recent years. The annual publication rate in this area has grown to around 300 papers per year (Bergles [135]). 

General Empirical Correlations. The correlations described above were either fluid specific or related to correlations for forced convection evaporation and/or pool nucleate boiling, respectively. An alternative approach is to develop correlations based only on the data for forced convective boiling. The most widely used correlation of this form is that of Shah [265], who correlated data for convective flow boiling in both vertical and horizontal pipes in the form... 

Pool and Nucleate Boiling—General Correlation for Heat Flux and Critical Temperature Difference... 

X = vapor quality of fluid = 0 for pool boiling and is a low fraction, about 0.1 to 0.3, for most nucleate boiling... 

The mechanism of boiling is essentially nucleate pool hoiling. In hoth styles of rehoiler the liquid velocity is relatively low compared to thermosiphon units. Jacobs provides an extensive comparison of advantages and disadvantages of essentially all the reboiler types used in industrial plants. Palen and Taborek conducted extensive studies of available data and proposed nucleate boiling equations to correlate various data from the available 14 equations down to a selected 6 for detailed study. The study was limited to various hydrocarbons and hydrocarbon mixtures. Their conclusions after computer correlations of the results from several equations were as follows. 

The following nucleate or alternate designs procedure, suggested by Kem, is for vaporization (nucleate or pool boiling) only. No sensible heat transfer is added to the boiling fluid. 

Magrini, V. and E. Mannei, On the Influence of the Thickness and Thermal Properties of Heating Walls on the Heat Transfer Coefficients in Nucleate Pool Boiling, Trans. ASMEfoumal of Heat Transfer, May (1974) p. 173. 

Raben, 1. A., R. T. Beaubouef, and G. Commerford, A Study of Nucleate Pool Boiling of Water at Low Pressure, 6 Nat l. Heat Transfer Conference, Boston, Aug. (1963), AlChE Preprint No. 28. 

Shah RK, London AL (1978) Laminar flow forced convection in ducts. Academic, New York Sher I, Hetsroni G (2002) An analytical model for nucleate pool boiling with surfactant additives. Int J Multiphase Elow 28 699-706... 

Zhang J, Manglik RM (2005) Additive adsorption interfacial characteristics of nucleate pool boiling in aqueous surfactant solutions. J Heat Transfer ASME 127 684-690... 

Liu Z, Winterton RHS (1991) A general correlation for saturated and subcooled flow boiling in tubes and annuli, based on a nucleate pool boiling equation. Int J Heat Mass Transfer 34 2759-2766... 

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