Experimental study of saturated pool boiling heat transfer with FeCrAl- and Cr-layered vertical tubes under atmospheric pressure

Son, Hong Hyun; Cho, Yun Sik; Kim, Sung Joong

doi:10.1016/j.ijheatmasstransfer.2018.09.013

Cited by 29 publications

(3 citation statements)

References 38 publications

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“…The wettability and roughness can have an impact on CHF occurrence. Although in the flow boiling studies from Haas [20] and Lee [21] no dependencies of wettability on CHF have been found, a positive impact was observed during pool boiling experiments by O'Hanley [1], Ali [4] and Son [3]. In this work the differences in wettability were characterized by contact angle and summarized in Table 6.…”

Section: The Effect Of Wettability and Roughnessmentioning

confidence: 72%

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Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow

et al. 2020

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Steady state flow boiling experiments were carried out on several heated tubes with outer diameter 9.14 mm at outlet pressures 120, 200 and 300 kPa, inlet temperatures 64, 78 and 91 °C and approximately 400, 500, 600 and 800 kg/(m2·s) mass flux entering the vertically aligned test annulus until critical heat flux (CHF) was reached. The tubes were made of Inconel 625 with a length of 400 mm. The Inconel tubes were tested in three different modifications as smooth, abraded with 150 grit sandpaper and bead blasted. Multiple experiments were repeated on the same specimen to investigate the effect of surface characteristic changes (i.e., wettability, roughness and oxide layer morphology) on the occurrence of CHF. Despite the changes in initial wettability, the CHF dependency was not clearly observed, however, the changes in roughness led to an increase in CHF. The total number of 115 experimental runs were collected and the results were also compared with other literature experimental data.

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Section: The Effect Of Wettability and Roughnessmentioning

confidence: 72%

“…Pool boiling studies showed a strong agreement on the impact of surface morphology on CHF. It can be seen in the work of O'Hanley et al [1], Seo et al [2], Son et al [3], Ali et al [4], Kam et al [5] and Liang et al [6].…”

Section: Introductionmentioning

confidence: 91%

Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow

et al. 2020

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“…The experimental facilities can be usually easily maintained and therefore they have been carried out on lots of different materials. The results of pool boiling experiments show strong agreement on the impact of surface morphology on CHF [1], [2], [3], [4]. The flow boiling experiment traditionally considers pressure, mass flow and inlet subcooling as major factors assuming that the impact of the material is limited [5].…”

Section: Introductionmentioning

confidence: 84%

Experimental Investigation of Critical Heat Flux in Annulus at Low Pressure and Low Flow Parameters

Vlček

Suk

Števanka

et al. 2020

APP

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Steady state flow boiling experiments were conducted on a technically smooth Inconel 625 tube with outer diameter 9.1 mm at inlet pressures 131, 220 and 323 kPa, inlet temperatures 62, 78 and 94 °C and approximately 400, 600 and 1000 kg/(m2.s) mass flow. Water of these parameters was entering into the vertically aligned annulus, where the uniformly heated tube was placed until the critical heat flux (CHF) appeared. The experimental data were compared to estimations of CHF by local PGT tube correlation and Groeneveld’s look-up tables for tubes. The results imply that in the region of low pressure and low mass flux, the differences between calculations and experiments are substantial (more than 50 % of CHF). The calculations further imply that look-up tables and tube correlations should be corrected to the annulus geometry. Here, the Doerffer’s approach was chosen and led to a substantial enhancement of CHF estimation. Yet, a new correlation for the region of low pressure and flow is needed.

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Recent progresses on thermal–hydraulics evaluations of accident tolerant fuel cladding materials

Wang

Chen

2021

Annals of Nuclear Energy

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Experimental study of saturated pool boiling heat transfer with FeCrAl- and Cr-layered vertical tubes under atmospheric pressure

Cited by 29 publications

References 38 publications

Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow

Experimental Investigation of Critical Heat Flux on Different Surfaces at Low Pressure and Low Flow

Experimental Investigation of Critical Heat Flux in Annulus at Low Pressure and Low Flow Parameters

Recent progresses on thermal–hydraulics evaluations of accident tolerant fuel cladding materials

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