On the performance of venturi-porous pipe microbubble generator with inlet angle of 20° and outlet angle of 12°

Majid, Akmal Irfan; Nugroho, Fellando Martino; Juwana, Wibawa Endra; Budhijanto, Wiratni; Deendarlianto,; Indarto, Indarto

doi:10.1063/1.5050000

Cited by 14 publications

(11 citation statements)

References 13 publications

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“…Gordiychuk et al (2016) carried out an investigation on the factors influencing the size distribution of bubbles in a Venturi-type bubble generator, including air/water Reynolds number and volume fraction. They found that the bubble size was inversely proportional to the water flow rate and got increased with the increase in the volume fraction, which was confirmed by the subsequent works (Sun et al, 2017;Majid et al, 2018;Huang et al, 2019aHuang et al, , 2019b. As shown in Fig.…”

Section: Effects Of Flow Parameterssupporting

confidence: 58%

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: Effects Of Flow Parameterssupporting

confidence: 58%

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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“…It has also been shown that the diameter of the resulting microbubbles is heavily influenced by the gas and liquid flow rates. Majid et al (2018) observed an increase in bubble diameter from 700µm to 1250µm when gas flow rate was increased from 0.012 to 0.066 m 3 hr -1 . However, a decrease in diameter from 700µm to 400µm was observed when the liquid flow rate was increased from 1.8 to 4.8 L min -1 .…”

Section: Microbubble Generation Methodsmentioning

confidence: 88%

“…A series of holes allow for the automatic suction of gas. Common types of turbulent flow microbubble generators include the spherical body (Budhijanto et al, 2015;Deendarlianto et al, 2015;Kawahara et al, 2009;Sadatomi et al, 2005;Sadatomi et al, 2007), orifice (Sadatomi et al, 2012), Venturi (Baylar et al, 2007;Baylar et al, 2010;Rahman et al, 2014;Huang et al, 2018;Majid et al, 2018) and swirling flow (Terasaka et al, 2011;Li et al, 2013a;Li et al, 2013b;Levitsky et al, 2016;Yamashita et al, 2017;Hu and Xia, 2018;Xu et al, 2018). The advantage of these types of microbubble generator is that they have no moving parts and require no power.…”

Section: Microbubble Generation Methodsmentioning

confidence: 99%

Microbubbles and their application to ozonation in water treatment: A critical review exploring their benefit and future application

John

Brookes

Carra

et al. 2020

Critical Reviews in Environmental Science and Technology

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Ozonation is a widely applied water treatment process, used for oxidation of contaminants, as well as for the disinfection of water. However, the conventional ozonation process demands a high energy requirement and deep tanks to ensure effective mass transfer and oxidation.Microbubble technologies have emerged which have the potential to improve gas-liquid contacting. Microbubbles have diameters of 1-100 µm, while conventional bubbles used in ozonation are between 2 -6 mm. Microbubbles have many favorable characteristics that make them suitable for ozonation. In this review, the attributes of microbubbles for ozonation have been compared with those of conventional bubbles. The higher interfacial area and lower rise velocity of microbubbles compared with conventional bubbles means that ozone in the gas phase can be more efficiently transferred into the liquid phase. This is due to a higher contact time and increased contact area of the bubble with the bulk liquid. The analysis reveals that the volumetric mass transfer coefficient can be significantly enhanced through the use of microbubbles. In addition, the steady state dissolved ozone concentration was positively impacted by the use of microbubbles. Microbubbles were shown to be able to oxidize a broader range of organic compounds more quickly than for conventional bubbles. However, the review highlighted that comparison of microbubbles with conventional bubbles is not always carried

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“…(2013) [1], Juwana , dkk. (2019) [2], Majid, dkk.. (2018) [3], Mawarni, dkk. (2020) [4], Mawarn, dkk.. (2021) [5], Mawarni dkk.…”

Section: Tinjauan Pustakamentioning

confidence: 99%

Metode Digital Image Processing Untuk Menentukan Distribusi Ukuran Diameter Gelembung Udara Pada Microgelembung Generator

Mawarni¹,

Indarto

Deendarlianto

et al. 2023

JOISM

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Penelitian ini dilakukan untuk mengetahui distribusi ukuran diameter gelembung yang dihasilkan oleh alat pembangkit gelembung udara mikro (microgelembung generator/MBG). Gelembung yang dihasilkan direkam dengan menggunakan kamera berkecepatan tinggi (high speed camera). Metode yang digunakan untuk mengetahui ukuran gelembung yang dihasilkan adalah dengan menggunakan metode digital image processing (MDIP). MDIP ini memiliki keunggulan yaitu dapat mengukur dimensi distribusi gelembung pada aliran yang tidak teratur secara akurat serta pada operasinya tidak mempengaruhi aliran yang terbentuk. Hasil akhir dari ekstraksi data image processing ini adalah distribusi diameter microgelembung yang dinyatakan dalam Probability Distribution Function (PDF) dan digunakan untuk mempresentasikan perbandingan disribusi dimensi gelembung udara yang dihasilkan oleh MBG Kata Kunci: Gelembung Udara Mikro, Digital Image Processing, Highspeed Camera, Probability Distribution Function

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On the performance of venturi-porous pipe microbubble generator with inlet angle of 20° and outlet angle of 12°

Cited by 14 publications

References 13 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

Microbubbles and their application to ozonation in water treatment: A critical review exploring their benefit and future application

Metode Digital Image Processing Untuk Menentukan Distribusi Ukuran Diameter Gelembung Udara Pada Microgelembung Generator

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