Nucleate pool boiling heat transfer: Review of models and bubble dynamics parameters

Stojanović, Andrijana D.; Belošević, Srdjan; Crnomarković, Nenad Đ.; Tomanović, Ivan; Milićević, Aleksandar

doi:10.2298/tsci200111069s

Cited by 6 publications

(3 citation statements)

References 83 publications

(85 reference statements)

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“…Global comparisons showed excellent agreement, demonstrating that the localized theoretical approach is a consistent analysis tool for applying finned heat pipes to heat exchangers. Andrijana D. Stojanović et al [8] reaffirm the importance of understanding the heat transfer process in nucleated boiling and accurately predicting the conditions that lead to the critical flow situation, mainly for safety reasons in nuclear power plants. They present a comprehensive review of heat transfer in nucleated boiling and discuss the results of studies related to the heat transfer coefficient in boiling processes and the characteristics associated with the phenomenon.…”

Section: Introductionmentioning

confidence: 92%

Thermal performance of liquid metal phase heat exchanger used in hydrogen production by thermal efficiency method

Nogueira,

Santos Filho

2024

Engineering and Its Advancements

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The main objective of the work is to apply the thermal efficiency method to analyze the heat exchange process in a heat exchanger used in a nuclear power plant to produce hydrogen. The fluids that exchange heat are superheated Helium and the liquid metal Sodium, the first used as the primary refrigerant and the second as the secondary heat exchanger refrigerant. The presented solution is restricted to the heat exchange and considers the two-phase heat exchange process as a nucleated boiling heat exchange for Sodium. The quantities determined for global heat transfer process analysis are thermal efficiencies, thermal effectiveness, heat transfer rates, and fluid exit temperatures in the three heat exchange regions by the liquid metal Sodium: subcooled fluid, saturated steam, and superheated steam. The theoretical analysis is a powerful tool that makes it possible to analyze situations under different operating conditions, which are not permissible through experimental means due to the high cost involved. The results are compared with the literature, and the absolute deviation for the quantities under analysis does not exceed 13%. The use of the equation developed by Rhosenow in 1963 for nucleated boiling heat exchange proved consistent in the simulation presented.

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Section: Introductionmentioning

confidence: 92%

Thermal performance of liquid metal phase heat exchanger used in hydrogen production by thermal efficiency method

Nogueira,

Santos Filho

2024

Engineering and Its Advancements

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“…There are many earlier works on boiling heat transfer and CHF [1,2]. Boscary et al [3] conducted experiments to investigate CHF of water subcooled flow in one-side heated swirl tubes.…”

Section: W Monoblcock and Cfc Monoblockmentioning

confidence: 99%

Critical heat flux analysis of divertor cooling flow channel in fusion reactor with CFD method

Wang

Guo

et al. 2022

THERM SCI

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Situated at the bottom of the vacuum vessel, the divertor extracts heat and ash produced by the fusion reaction, minimizes plasma contamination, and protects the surrounding walls from thermal and neutronic loads. The vertical targets of divertor are designed to be able for up to 20 MW/m2 high heat flux. It is a great ordeal for both the material performance and the cooling ability. Critical heat flux (CHF) margin is very crucial during the design of divertor. ANSYS FLUENT is used in this paper to predict the CHF on a monoblock structure with a twisted tape inside the tube. Numerical results are validated with the corresponding sets of experimental results. In this paper, CFD method used to predict CHF of divertor cooling channel was first introduced. On the other hand, influence of inlet subcooling on CHF is studied in detail. The inlet subcooling affect the CHF much complicated for the single- side heated and swirl flow channel. Whether the influencing trend or the locations of CHF occurrence are different under different inlet subcooling. The derivations between the simulation and experimental results were no more than 32%. This study proves the CFD tools can provide efficient help on the understanding of the CHF phenomenon of complex construction.

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“…Investigated micro roughness and smooth surfaces and explained that smaller nucleation cavities lead to smaller bubbles whereas higher bubble frequencies lead to larger fluxes (Benjamin and Balakrishnan, 1996). Conducted a comprehensive analytical and numerical review on heat transfer of boiling pool nucleates (Stojanović et al, 2022). From his study, it has been understood the characteristics of boiling phenomena such as bubble emergence, bubble emergence frequency, and bubble waiting time and growth.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Heat Flux on the Frequency of Bubble Appearance in a Boiling Pool

Muhammad Hasan,

Supriyadi,

Larasati Rizky Putri

et al. 2024

ASIIMETRIK

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This research was conducted to determine the effect of heat flux on the frequency of bubbles appearing in boiling ponds. All fluid movement in pool boiling is caused by natural convection currents. The boiling pool consists of four areas of the pool boiling regime. The division of the four areas is based on the value of the heat flux and the difference between the surface temperature of the heater and the fluid. Using a two-phase heat transfer unit (H654 P.A. Hilton machine), The results showed that the power used greatly influences the boiling process, and besides that, the volume of water used also affects the duration of the boiling process. Based on tests using various power levels of 75 W, 110 W, 168 W, 237.5 W, and 290 W. The occurrence of bubbles will be faster and more numerous when using a lower volume of water and greater power. The heat transfer will be greater if a bubble appears, where latent heat plays a very important role. With mathematical analysis, an increase of 1 bubble per minute occurs for every increase in heat flux of 1.3 W/m2.

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Nucleate pool boiling heat transfer: Review of models and bubble dynamics parameters

Cited by 6 publications

References 83 publications

Thermal performance of liquid metal phase heat exchanger used in hydrogen production by thermal efficiency method

Thermal performance of liquid metal phase heat exchanger used in hydrogen production by thermal efficiency method

Critical heat flux analysis of divertor cooling flow channel in fusion reactor with CFD method

The Effect of Heat Flux on the Frequency of Bubble Appearance in a Boiling Pool

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