Experimental research on the characteristics of steam jet condensation in subcooled water through a double-hole nozzle in one direction

Lu, Daogang; Li, Feng; Qiu, Zhimin; Liu, Lifang; Chen, Jun; Fu, Jingpin; Wang, Zhongyi; Kong, Xiaoning; Ouyang, Bin; Yuan, Yu; Zhang, Yuhao

doi:10.1016/j.anucene.2020.107898

Cited by 12 publications

(1 citation statement)

References 31 publications

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“…Through the adoption and assessment of suitable numerical codes, it was able to precisely simulate low-pressure steam injection and sub-cooled water's initial thermodynamic parameters. Lu et al (2021) investigated the DCC characteristic through a double-hole nozzle under different conditions; the experimental data indicate that the heat transfer coefficient of the double-hole steam jet is closely related to the sub-cooled water temperature and steam mass flux. used Lee mass transfer model to investigate the interfacial characteristics, with reference to experiment data they obtained; it was demonstrated that the mass transfer rate caused velocity fluctuations at the steam-water interface, and these velocity fluctuations promoted bubble deformation.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on heat transfer characteristics of steam underwater direct-contact condensation

Chen

Hui²,

Li³

et al. 2023

Front. Therm. Eng.

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Introduction: The direct-contact condensation (DCC) of steam under water injection is the basic thermodynamic process of the bubble deaerator. In order to understand the complex coupling behavior of strong turbulence and fast phase-change heat transfer involved in the process.Methods: This study uses a visualized method and convective heat transfer model.Results: Since the contact area is affected by steam injection flow and sub-cooled degree is affected simultaneously, the trend of the condensation heat-transfer coefficient depends on the degree of their respective effects under each condition, and the maximum variation of the coefficient exceeds 104 W/m2.°C. Moreover, they still effect the period of steam plume, and the maximum variation of the period was beyond 80 ms.Discussion: Calculated the average condensation heat transfer coefficient and then produces the variation law of heat transfer coefficient under various conditions in one steam plume evolution period.

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Section: Introductionmentioning

confidence: 99%