Study on the influence of droplet agglomeration on the removal of aerosol by spray system

Yu, Huiyu; Gu, Haifeng; Sun, Zhongning; Zhou, Yonggang; Sun, Chuan-bin; Chen, Junyan

doi:10.1016/j.pnucene.2021.103903

Cited by 12 publications

(1 citation statement)

References 10 publications

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“…The complex interaction of the droplets with the containment environment has been extensively studied in the literature. There are examples of the already mentioned interaction of the spray droplets with the fission products (Yu et al, 2021), their influence on hydrogen combustion (Gupta and Langer, 2019), and also research on heat transfer fundamentals for other fields (Hou et al, 2018;Yoon et al, 2004). However, this paper will focus on the analytical activities addressing the influence of the spray actuation on the containment thermal-hydraulic behaviour-namely, the cooling effect and the hydrogen mixing ability of the spray system.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Depressurisation and Mixing Effects of Two Spray Systems in the Panda Facility, Part Ii – Simulations Using Gothic8.3(Qa)

Vázquez-Rodríguez

Andreani²,

Varas

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Assessment of the Depressurisation and Mixing Effects of Two Spray Systems in the Panda Facility, Part Ii – Simulations Using Gothic8.3(Qa)

Vázquez-Rodríguez

Andreani²,

Varas

et al. 2022

SSRN Journal

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Experimental investigation on effective aerosol scavenging using different spray configurations with pre-injection of water mist for Fukushima Daiichi decommissioning

Xu,

Sharma,

Ozdemir

et al. 2024

NUCL SCI TECH

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During the decommissioning of the Fukushima Daiichi nuclear power plant, it is important to consider the retrieval of resolidified debris both in air and underwater configurations. For the subsequent retrieval of debris from the reactor building, the resolidified debris must be cut into smaller pieces using various cutting methods. During the cutting process, aerosol particles are expected to be generated at the submicron scale. It has been noted that such aerosols sizing within the Greenfield gap (0.1–1 μm) are difficult to remove effectively using traditional spraying methods. Therefore, to improve the aerosol removal efficiency of the spray system, a new aerosol agglomeration method was recently proposed, which involves injecting water mist to enlarge the sizes of the aerosol particles before removing them using water sprays. In this study, a series of experiments were performed to clarify the proper spray configurations for effective aerosol scavenging and to improve the performance of the water mist. The experimental results showed that the spray flow rate and droplet characteristics are important factors for the aerosol-scavenging efficiency and performance of the water mist. The results obtained from this study will be helpful for the optimization of the spray system design for effective aerosol scavenging during the decommissioning of the Fukushima Daiichi plant.

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Investigation of aerosol generation through laser cleaning of various surfaces and optimization of mist & spray scavenging

Sharma,

Xu,

Ahmed

et al. 2024

Journal of Aerosol Science

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Study on the influence of droplet agglomeration on the removal of aerosol by spray system

Cited by 12 publications

References 10 publications

Assessment of the Depressurisation and Mixing Effects of Two Spray Systems in the Panda Facility, Part Ii – Simulations Using Gothic8.3(Qa)

Assessment of the Depressurisation and Mixing Effects of Two Spray Systems in the Panda Facility, Part Ii – Simulations Using Gothic8.3(Qa)

Experimental investigation on effective aerosol scavenging using different spray configurations with pre-injection of water mist for Fukushima Daiichi decommissioning

Investigation of aerosol generation through laser cleaning of various surfaces and optimization of mist & spray scavenging

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