Dust particle removal efficiency of a venturi scrubber

Ali, Majid; Yan, Changqi; Sun, Zhongning; Gu, Haifeng; Mehboob, Khurram

doi:10.1016/j.anucene.2012.11.005

Cited by 61 publications

(22 citation statements)

References 15 publications

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“…Venturis have been suggested to be as gas absorption devices (Bauer et al, 1963;Zhou and Smith, 2000;Baawain et al, 2007), bubble generators or gas distributors (Kress, 1972;Huynh et al, 1991;Briens et al, 1992;Havelka et al, 2000;Kawamura et al, 2004), and chemical reactors for the fast reaction inside (Cramers and Beenackers, 2001;Gourich et al, 2005). Liquid-driven type Venturi is often used as gas-inducing devices, such as bubble generators and gas distributors, while gas-driven type Venturi is used as scrubbers (Ali et al, 2013;Gulhane et al, 2015;Zhou et al, 2016;Bal et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

A review on bubble generation and transportation in Venturi-type bubble generators

Huang

Sun

Liu

et al. 2019

Exp. Comput. Multiph. Flow

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Venturi-type bubble generators own advantages of simplicity in structure, high efficiency, low power consumption, and high reliability, exhibiting a broad application potential in various fields. This work presents a literature review of recent progress in the research concerning Venturi-type bubble generators, with a focus on the performance evaluation, bubble transportation, and breakup mechanisms. Experimental studies employing flow visualization techniques have played an important role in exploring the bubble transportation and breakup phenomena, which is vitally necessary for clarifying the bubble breakup mechanisms and understanding the working principle and performance of a Venturi channel as a bubble generator. A summarization was carried out on both experimental and theoretical work concerning parameters influencing the bubble breakup and the performance of Venturi-type bubble generators. Based on the geometric parameter optimization combined with appropriate flow conditions, it is expected that Venturi-type bubble generators can produce bubbles with controllable size and concentration to satisfy the application requirements, while a further work is required to illustrate the interaction between the liquid and gas bubbles.

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Section: Introductionmentioning

confidence: 99%

A review on bubble generation and transportation in Venturi-type bubble generators

Huang

Sun

Liu

et al. 2019

Exp. Comput. Multiph. Flow

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“…Recently, nuclear power plant applications of these devices have been explored theoretically and experimentally for iodine removal [9]. The capture of contaminated particles from a nuclear power plant using a venturi scrubber was also studied experimentally and a capture efficiency model was proposed [10], and a CFD simulation of particle removal efficiency that shows good agreement with experimental results has also been reported [11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Flow Behavior within a Venturi Scrubber

Toledo-Melchor

Torres

Bernal³

et al. 2014

Mathematical Problems in Engineering

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The present work details the three-dimensional numerical simulation of single-phase and two-phase flow (air-water) in a venturi scrubber with an inlet and throat diameters of 250 and 122.5 mm, respectively. The dimensions and operating parameters correspond to industrial applications. The mass flow rate conditions were 0.483 kg/s, 0.736 kg/s, 0.861 kg/s, and 0.987 kg/s for the gas only simulation; the mass flow rate for the liquid was 0.013 kg/s and 0.038 kg/s. The gas flow was simulated in five geometries with different converging and diverging angles while the two-phase flow was only simulated for one geometry. The results obtained were validated with experimental data obtained by other researchers. The results show that the pressure drop depends significantly on the gas flow rate and that water flow rate does not have significant effects neither on the pressure drop nor on the fluid maximum velocity within the scrubber.

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“…Já as eficiências de coleta de material particulado total, para diferentes velocidades de gases, obtidas por Ali et al (2013) foram de mais de 93,5%, chegando a um máximo de 99,5%. Na menor velocidade de gás na garganta utilizada por Ali et al (2013), equivalente a 130 m/s, a uma vazão de líquido de 0,3 m³/h (5 L/min), obteve-se uma eficiência de quase 94%.…”

Section: Tamanho De Mp (µM)unclassified

CONTROLE DE MATERIAL PARTICULADO ORIGINADO DA QUEIMA DE PALHA E BAGAçO DE CANA-DE-AçúCAR EM LAVADOR VENTURI

Silva¹,

Costa²,

Donato³

et al. 2019

Blucher Chemical Engineering Proceedings

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RESUMO-O Brasil dispõe de uma vasta matriz energética, em que a biomassa vem ocupando o seu espaço com um crescimento nos últimos cinco anos. Porém, a principal utilização da biomassa compreende processos termoquímicos de combustão industrial, ocasionando emissão de poluentes como material particulado (MP), monóxido de carbono (CO), óxidos de nitrogênio (NOX), entre outros que impactam a saúde ambiental e humana. O controle da emissão desses componentes na atmosfera se faz necessário e pode ser feita por equipamentos como ciclones, filtros de manga, precipitadores eletrostáticos e lavadores de gases. Este trabalho teve por objetivo monitorar o controle da taxa de emissão de material particulado num lavador Venturi, a partir da queima de 50% de palha e 50% de bagaço de cana-de-açúcar em um queimador de escala laboratorial. Foram posicionados amostradores isocinéticos antes e depois do Venturi com capacidade de amostragem em 3 faixas de diâmetro: MP maior que 2,5 µm; entre 1,0 e 2,5 µm; e menor que 1,0 µm. Os testes evidenciaram que a concentração de MP antes do fluxo gasoso atingir o lavador Venturi foi maior para partículas com diâmetros menores que 1,0 µm e menor para partículas maiores que 2,5 µm; e que as taxas de concentração de MP foram menores após o lavador Venturi para as três faixas de diâmetro. Obteve-se uma eficiência de coleta de MP de 96,6% para partículas maiores que 2,5 µm; de 85,5% para partículas entre 1,0 µm e 2,5 µm; e de 66,9% para partículas menores que 1,0 µm.

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Dust particle removal efficiency of a venturi scrubber

Cited by 61 publications

References 15 publications

A review on bubble generation and transportation in Venturi-type bubble generators

A review on bubble generation and transportation in Venturi-type bubble generators

Numerical Simulation of Flow Behavior within a Venturi Scrubber

CONTROLE DE MATERIAL PARTICULADO ORIGINADO DA QUEIMA DE PALHA E BAGAçO DE CANA-DE-AçúCAR EM LAVADOR VENTURI

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