Author
Tae-Ho Lee
Bio: Tae-Ho Lee is an academic researcher. The author has contributed to research in topics: Boiling & Subcooling. The author has an hindex of 8, co-authored 15 publications receiving 269 citations.
Topics: Boiling, Subcooling, Bubble, Nusselt number, Heat flux
Papers
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TL;DR: In this article, the authors performed an extensive survey on existing models and correlations developed for boiling bubbly flows, and developed correlation of the interfacial area concentration agreed with 569 adiabatic flow data and 343 boiling flow data within averaged relative deviations of ±21.1% and ±31.0%, respectively.
74 citations
TL;DR: In this paper, a numerical study of a laminar natural convection of the CuO-water nanofluid in a square cavity using homogeneous and nonhomogeneous models is presented.
Abstract: A numerical study of a laminar natural convection of the CuO-water nanofluid in a square cavity using homogeneous and nonhomogeneous models is presented. All the governing equations including the volume fraction equation are discretized on a cell-centered, nonuniform grid employing the finite-volume method with a primitive variable formulation. Calculations are performed over a range of Rayleigh numbers (Raf = 104–107) and volume fractions of the nanoparticle (0.01 ≤ Φ ≤ 0.1). From the computed results, it is shown that both the homogeneous and nonhomogeneous models predict the deterioration of the natural convection heat transfer well with an increase of the volume fraction of nanoparticle at the same Rayleigh number, which was observed in the previous experimental studies. It is also shown that the differences in the computed results of the average Nusselt number at the wall between the homogeneous and nonhomogeneous models are very small, and this indicates that the slip mechanism of the Brown diffusio...
60 citations
TL;DR: The Prototype Gen IV sodium cooled fast reactor (PGSFR) has been developed for the last 4 years, fulfilling the technology demonstration of the burning capability of transuranic elements included in light water reactor spent nuclear fuel as mentioned in this paper.
52 citations
TL;DR: In this paper, a model for the condensation sink term in an interfacial area transport equation (IATE) was developed, where a bubble nucleation due to wall surface boiling and a bubble collapse due to a condensation were assumed to be symmetric phenomena.
40 citations
TL;DR: In this paper, the influence of flow condition on the profiles of local two-phase flow parameters was discussed, based on these measurements with the previous data obtained in the present test loop, the measured average void fraction and interfacial area concentration were compared with the predictions by existing correlations for drift-flux parameters and inter-surface area concentration.
20 citations
Cited by
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TL;DR: The developed model is used to simulate the flow boiling process of a hydrocarbon feedstock in the tubes of a convection section heat exchanger of a steam cracker and results show a succession of horizontal two-phase flow regimes in agreement with the literature.
225 citations
TL;DR: In this article, a multidimensional modeling of vertical upward subcooled boiling flow using a two-fluid approach and calculation of local two-phase flow parameters (void fraction and bubble size) was taken into account.
136 citations
TL;DR: In this article, an experimental investigation is carried out to examine the melting process of nanoparticle enhanced phase change material (i.e., nano-PCM) inside a metal foam enclosure under constant heat flux boundary condition.
118 citations
TL;DR: In this paper, the melting process, heat transfer, and energy storage characteristics of a bio-based nano-PCM in a vertical Cylindrical Thermal Energy Storage (C-TES) system are numerically investigated and verified with experimental work.
117 citations
TL;DR: In this paper, a nano-PCM filled enclosure, which is a representative geometry of a thermal energy storage (TES) system, is investigated using scale analysis, numerical simulation, and experimental analysis.
110 citations