Heat transfer mechanisms in pool boiling

Visualization study of nucleate pool boiling of liquid nitrogen with quasi-steady heat input

“…In contrast, taking the bubble cluster as a whole, the detachment frequency 17 becomes a constant value (13.47 s -1 ) in the coalesced bubble cluster regime, which can be satisfactorily predicted by the Kumada's correlation. 4) In the isolated bubble regime, the number density of active sites for LN 2 may be approximately considered to be linearly proportional to ΔT m as it is for water except that the absolute value of m is much smaller. More experimental data is required to further verify it.…”

“…Recently, the statistical thermodynamic heat transfer theory has been applied to illustrate the kinetics of phase transition mechanisms, successfully predicting the relation between superheat and heat flux [4] . However, the mechanism and modeling of the transport process still remains incompletely understood.…”

“…These uncertainties undoubtedly contribute much to the disagreement in model predictions with the experimental data [7,8] . A general review and comment about these efforts can be found in the literatures [4,7,8]. 3 Recently, the authors [5] demonstrated that the widely used closure correlations of heat and mass transfer on the heating surface during subcooled boiling flow of water are invalid to the boiling flow of liquid nitrogen (LN 2 ) due to the evident differences in physical properties of the liquids.…”

Optimization of the Pool Boiling Heat Transfer in the Region of the Isolated Bubbles using the ABC Algorithm

“…Zuber's pioneering work of natural convection is in nucleate boiling Zuber (1963). Many scientists studied the natural convection effect of pool boiling Zhang et al (2015), Horie et al (2015), Narayan et al (2018), Kim et al (2004), Kim et al (2014), Roh (2014). Coefficient of heat flux can be calculated as follows;…”

A 2D inverse problem of predicting boiling heat transfer in a long fin

“…Measured and numerically calculated values of heat transfer coefficient demonstrate good congruence, which indicates a correct selection of measurement methods and a cogent analysis of the experimental results. The application of the heat transfer theory to pool boiling is discussed by Roh [12]. The study provides an explicit illustration of the kinetics of phase transition mechanisms at the interface of two different phase materials.…”