Development of correlations for liquid entrainment through a large-scale inclined branch pipe connected to the main horizontal pipe

Lu, Zhiyuan; Meng, Zhaoming; Gu, Ningxin; Wang, Jinpu; Nian, Feifei; Wang, Jun; Ding, Ming

doi:10.1016/j.expthermflusci.2018.03.007

Cited by 6 publications

(5 citation statements)

References 14 publications

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“…Based on the study of Lee et al (2007) andLu et al (2018), we obtained the experimental data of other pipe sizes. As shown in Table 1 of the Appendix, we presented our experimental data and the data of other pipe sizes.…”

Section: Resultsmentioning

confidence: 99%

“…A vortex flowmeter was adopted to measure the gas phase flow. For the analysis of uncertainty, the following formula was adopted (Liu, 2000;Hu, 2002;Liang et al, 2005;Luo, 2007;Ni, 2009):…”

Section: Experimental Facilitymentioning

confidence: 99%

“…We analyze the effect of branch angle on the onset of liquid phase entrainment by drawing upon the comparison of the results of Lee et al (2007) and Lu et al (2018). As shown in Figure 2C, given the experimental data acquired, Fr g (ρ g / ρ) 0.5 with h b /d relationship curves were plotted in this study.…”

Section: The Effect Of Branch Anglementioning

confidence: 99%

“…Furthermore, , Cho and Jeun (2004), Cho and Jeun (2007), and Welter et al (2004) also made outstanding contributions to the study on the onset of liquid entrainment. Lu et al (2018) have conducted a study on large branch pipe (D = 80 mm, d = 56 mm) with different angles. In the research conducted by Lu et al, the entrainment onset correlation was developed.…”

Section: Introductionmentioning

confidence: 99%

“…In the research conducted by Lu et al, the entrainment onset correlation was developed. They demonstrated that the gas phase Fr at the onset of liquid entrainment decreases with an increase in the branch angle θ (Lu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Different Branch Angles and Different Branch Pipe Sizes on the Onset Law of Liquid Entrainment

Shen

Liu

et al. 2020

Front. Energy Res.

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The T-junction has been extensively employed in nuclear power plant systems. To ensure the normal operation of nuclear power plant, the onset point of T-junction liquid entrainment requires in-depth studies. Existing studies have been conducted on the onset point of liquid entrainment, whereas most of them are for small branch pipes. This study primarily discussed the onset law of large branch pipe. Moreover, the effects of branch angle and size on the onset point of liquid entrainment were analyzed by comparing it with other branch pipe sizes in this study. This study demonstrated that the effect of branch angle on the onset point of entrainment complies with that of other sizes, i.e., because that the decrease in the inertial force in the vertical direction acting on the liquid phase by the gas phase with the decrease in the angle, hence, the onset requires larger Fr g under the identical h b with the decrease in the angle between the branch pipe and the horizontal direction. Moreover, by comparing the onset point law of liquid entrainment exhibiting different branch pipe sizes, the effect of branch pipe size on the onset was reported in this study that the smaller branch pipe requires the greater gas velocity in the presence of onset. We found that there is different flow resistance of different sizes of branch pipe, small branch has larger flow resistance, in order to remedy the flow resistance, the gas dynamic head decreases, thereby causing the Bernoulli effect weaker; the onset of liquid entrainment requires larger V 3g .

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Section: Resultsmentioning

confidence: 99%

“…A vortex flowmeter was adopted to measure the gas phase flow. For the analysis of uncertainty, the following formula was adopted (Liu, 2000;Hu, 2002;Liang et al, 2005;Luo, 2007;Ni, 2009):…”

Section: Experimental Facilitymentioning

confidence: 99%