Performance evaluation of venturi aeration system

Yadav, Anamika; Kumar, Avinash; Sarkar, Sutanu

doi:10.1016/j.aquaeng.2021.102156

Cited by 23 publications

(11 citation statements)

References 33 publications

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“…The results deficit and saturation oxygen of various diameter Nozzles and power can be seen in the Figure 2, 3, and 4. Natural logarithms of oxygen deficits known as the log deficit method (Yadav et al, 2021) were plotted versus aeration time Figure 2, 3, and 4. From there are figures, it is seen that the diameter of the Nozzle and power influence give a limited effect on the occurrence of oxygen deficit.…”

Section: Discussionmentioning

confidence: 99%

Effect of Power Pump and Nozzle Diameter Microbubble Generator to Increase Oxygen Concentration in Aquaculture

Taukhid

Trijuno

Karim

et al. 2021

Israeli Journal of Aquaculture - Bamidgeh

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Various types of microbubble generators for use in aquaculture facilities for aeration. The aeration system is essential for high-density shrimp cultivation. However, there is a blockage in the microbubble generator aeration system, and generally, aeration at high densities requires considerable electrical power. In this study, modifications were made to various diameter nozzles and various pump power for microbubble generators. This research was conducted to determine the best microbubble by comparing the nozzle diameter and pump power. To achieve this goal, three diameter nozzles are combined with three different powers with an airflow rate of 2.5 LPM. The best combination of 32.5 mm nozzle diameter and 160-watt pump power. Produce bubbles ranging from 5.6 -82 µm, with an increased oxygen concentration time of 60 minutes.

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Section: Discussionmentioning

confidence: 99%

Effect of Power Pump and Nozzle Diameter Microbubble Generator to Increase Oxygen Concentration in Aquaculture

Taukhid

Trijuno

Karim

et al. 2021

Israeli Journal of Aquaculture - Bamidgeh

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“…The continuity, momentum, diffusion, and species transfer equations that express the governing equations for Newtonian, incompressible, and immiscible flows are defined as follows [1,2]: ∇u = 0 (1)…”

Section: Governing Equationsmentioning

confidence: 99%

“…Venturi uses the high energy produced by accelerating the gas in the convergence section to break up the liquid into droplets in the throat. These droplets are responsible for cleaning the gas as they encapsulate and trap the particles [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Kenneth [5] presented a paper based on Boll's model containing a set of design charts and equations to give general solutions for estimating pressure drop in venturi devices. Kailash [2] investigated the performance evaluation of a venturi aeration system. Breitenmoser et al [1] presented a model to predict the efficiency of droplet size distribution in a venturi scrubber with liquid film injection.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of the Cleaning Performance of a Venturi Scrubber

et al. 2022

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Industrial applications need to use different systems for the problem of gas cleaning. A lot of processes have been developed, such as the use of a venturi for gas cleaning and pollution reduction. Additionally, several studies have been developed especially in terms of pressure drop because it is one of the main parameters to determine its efficiency. While the phenomenon of mass transfer in a venturi scrubber has not found much attention, in the present study, a mass transfer two-dimensional simulation is developed for gasification gas cleaning through a venturi scrubber with boundary conditions represented in air inlet velocities of 10, 15, and 20 m/s and water inlet mass flow of 0.02, 0.04 and 0.06 kg/s. In this work, Navier–Stokes equations are solved numerically and the mass transfer technique is treated by the volume of fluid (VOF) model, using CFD software. The obtained results were analyzed by presenting the mass fraction, velocity and pressure contours, and profiles. The probability density function (PDF) of mass transfer is studied too, showing how the removal efficiency of the venturi scrubber increases with a decrease in the liquid flow rate and an increase in the gas velocity. Therefore, the results show that the proposed venturi has the best mass transfer performance with a PDF that reaches 97.6 for velocity liquid of 20 m/s and the removal efficiency showed higher values at low liquid flow rates.

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“…Yadav et al. [ 5 ] studied the geometric parameters of a Venturi tube, e.g. the throat length, number of air holes and convergent and divergent angles, in order to optimize the device and achieve the highest aeration efficiency.…”

Section: Introductionmentioning

confidence: 99%