Interactions Between Heat Transfer and Bubble Formation in Nucleate Boiling

Bubble departure diameter in nucleate pool boiling at saturation: Pure liquids and binary mixtures

“…Because of the inadequacy of this critical information, a theoretical model for prediction of the nucleate boiling heat transfer coefficient is still at the early stage of development. (Gorenflo et al, 1990(Gorenflo et al, , 1998(Gorenflo et al, , 2004Peyghambarzadeh et al, 2009;Hu et al, 2013;Lee et al, 2014;Rocha et al, 2013). In comparison to pool boiling of organic liquid mixtures, far less information is available about the effect of dissolved salts on the mechanisms of boiling.…”

Boiling phenomena with surfactants and polymeric additives: A state-of-the-art review

“…Over the past decades, a great amount of research on pool boiling and flow boiling has been carried out to understand the fundamental aspect of boiling phenomena and to provide practical knowledge for the engineering design requirements in various industries. Several mechanisms and theories of boiling phenomena have been developed and the mechanisms are not fully understood yet and still under discussion [1][2][3][4][5][6][7][8][9][10][11]. Boiling is a complex and elusive process.…”

Heat transfer and bubble formation in pool boiling: Effect of basic surface modifications for heat transfer enhancement

“…1) between the tops of neighbouring fins at the top of the (horizontal) tube and trap vapour in the tunnels between the fins, and in the second case, heat transfer is dominated by the restricted release of the great amount of vapour produced in the tunnels at high heat flux, similar to single-phase forced convective heat transfer which is independent of heat flux and pressure, while at the highest pressure in Fig. 4, nucleation exists all over the tube surface and α increases with q and p * , also at the highest heat flux investigated (for more details, see [6,23]). Both peculiarities also occurred with Propylene and refrigerant R134a (CF 3 ·CH 2 F) boiling on the TX-tube, while the first effect (a) was not found with another refrigerant (R152a, CHF 2 ·CH 3 ) within the same ranges of q and p * [1,[24][25][26].…”

“…Much less systematic investigations exist on bubble formation than on heat transfer for evaporator surfaces with dimensions and roughness structures relevant in practice, as a review of the literature on interactions between heat transfer and bubble formation in nucleate boiling given in 1998 [23] revealed. Therefore, much more basic investigations on bubble formation than on heat transfer had to be carried out for the test tube without modifications for enhancement in the first stages of our research project, and new or existing methods for the analysis of bubble formation had to be developed or improved, respectively.…”