Two‐mode boiling on a horizontal heating wire

Lee, D. J.; Lu, Shao Chun

doi:10.1002/aic.690380714

Cited by 23 publications

(8 citation statements)

References 10 publications

(7 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Witte and Lienhard [8] observed two transition boiling curves in the heat flux controlled experiments, film-transition, and nucleate-transition boiling curve. Multimode and coexisting boiling phenomena were also investigated in many available works, and coexisting boiling can occur on different surfaces with various heat generation distributions [9,10]. Zhukov and Barellko [11] observed the coexistence boiling of nucleate and film boiling on a wire in their experiments, and the equilibrium line, or the heat generation distribution with equilibrium current at different temperatures, was introduced to investigate this phenomenon.…”

Section: Introductionmentioning

confidence: 98%

Nucleate Boiling Modes of Subcooled Water on Fine Wires Submerged in a Pool

Peng

Bourouga

2006

Experimental Heat Transfer

View full text Add to dashboard Cite

An experimental investigation was conducted to observe nucleate boiling modes and their characteristics during pool boiling of subcooled water on very small wires. Different nucleate boiling modes, or large bubble and explosive small bubble boiling, were clearly and repeatly observed using a high-speed photography technology, and their coexistence was described and discussed for nucleate boiling, Dissolved air was found to play an important role in large bubble boiling mode and coexisting nucleate boiling. The heat generation characteristics also showed a great difference for different boiling modes. From the observation of the transition process from the large bubble boiling to explosive small bubble boiling, the equilibrium current and associated phenomena were experimentally investigated, and they all had very close relationship with the different boiling modes. Heat transfer model were also proposed to explain the phenomena and measured results, and the heat flux of the coexistence boiling had linear relation with the temperature.

show abstract

Section: Introductionmentioning

confidence: 98%

Nucleate Boiling Modes of Subcooled Water on Fine Wires Submerged in a Pool

Peng

Bourouga

2006

Experimental Heat Transfer

View full text Add to dashboard Cite

show abstract

“…1 is widely employed in boiling literature (Lai and Hsu, 1967;Unal, 1985Unal, , 1986. More complicated empirical correlation can also be found in previous literature, such as Lee and Lu (1992). However, we note that the basic process characteristics remain unchanged when the more complicated equations are employed.…”

Section: Aiche Journalmentioning

confidence: 78%

Boiling on a straight pin fin

Lin

Lee

1996

AIChE Journal

Self Cite

View full text Add to dashboard Cite

“…In Figs increasing heating voltage, and the dashed arrow corresponds to decreasing heating voltage. Generally, four modes are observed: single-phase natural convection, nucleate pool boiling, film pool boiling, and two-mode transitional pool boiling (in which nucleate and film pool boiling co-exist on the same wire) (Lee and Lu, 1992;Zhao et al, 2008a).…”

Section: Resultsmentioning

confidence: 99%

Revisit on the Scaling of the Critical Heat Flux on Cylinders

Zhao

2015

Interfac Phenom Heat Transfer

View full text Add to dashboard Cite

is one of the great scientific heritages. Progress on this topic has been made for more than a half-century. Recently, however, the commonly accepted figure on CHF scaling, which is built on experimental data obtained in normal gravity, has received strong challenges from microgravity research. It has been found that CHF on cylinders in microgravity shows the same trend as that predicted by the commonly accepted Lienhard-Dhir-Zuber correlation, although the dimensionless radius is extended to over two orders of magnitude of the correlation's original lower value. The present paper revisits CHF scaling on cylinders, particularly on small cylinders with very small Bond numbers. A new series of experimental data on CHF on small cylinders in normal gravity is presented and discussed. Platinum wires of 30 mm in length are simultaneously used as heaters and thermometers. Their diameters are 100, 60, and 25 µm, respectively. Degassed FC-72 and acetone are used as the working fluids, and the range of subcooling is 0 K to approximately 50 K. Different CHF scaling behaviors at saturated pool boiling are observed for the two fluids. It is very evident that cylinder diameter, as well as material parameters, has an influence on the dependence of CHF on subcooling in the case of small cylinder diameters. Thus, taking into consideration the observation of CHF on cylinders in microgravity, it is conjectured that some other parameters in addition to the Bond number, play important roles in CHF with small Bond numbers.

show abstract

Two‐mode boiling on a horizontal heating wire

Cited by 23 publications

References 10 publications

Nucleate Boiling Modes of Subcooled Water on Fine Wires Submerged in a Pool

Nucleate Boiling Modes of Subcooled Water on Fine Wires Submerged in a Pool

Boiling on a straight pin fin

Revisit on the Scaling of the Critical Heat Flux on Cylinders

Contact Info

Product

Resources

About