Economic comparison of venturi aeration system

Yadav, Anamika; Kumar, Avinash; Sarkar, Sutanu

doi:10.1007/s10499-022-00931-6

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…Numerous aerator options have been introduced, yet selecting the most suitable one for farmers or stakeholders remains a significant challenge. Despite the availability [16,17] of different aerator types in the market, affordability is a predominant issue. Both single-hub and double-hub paddle wheel aerators, as well as Cascade and Venturi aerators, require substantial capital investments, making them less accessible to farmers and small stakeholders.…”

Section: Economic Analysismentioning

confidence: 99%

A Comprehensive Study on Paddle Wheel Aerator

Suranjit Roy,

Avinash Kumar

2024

Int Res J Adv Engg Hub

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The aquatic biome is greatly impacted by the rise in demand brought on by the current worldwide population growth. The demand for fish is steadily rising with population growth and the prevalence of water contamination is rising alarmingly. Several aerators have been utilized to evaluate the normal aeration effectiveness at different conditions. In terms of oxygen transmission and water circulation, paddle wheel aerators fared better than the rest. The oxygen transfer capacity of the double-hub paddle wheel aerator was the same as that of the single-hub paddle wheel aerator but consumed more energy under similar geometric and dynamic properties. The dimensional analysis of the aeration process highlighted that the absorption process' determining parameter is KLA20 and the main characteristic of a paddle wheel aerator is its geometric variables. Generally, Paddle wheel design typically takes into account a variety of dimensions from 50 to 90 cm for the diameter, 75 to 135 rpm for speed, and 8 to 25 cm for paddle depth of submergence but certain performance losses were seen in the models. The power-to-volume ratio was calculated and found to be between 0.01 and 0.04 kW/m3 but the aeration process is affected by several geometrical and material variables. Despite the different kinds of aerators available in the market, the main issue is that farmers and other small stakeholders cannot afford them. Paddle wheel aerators with single or double hubs are pricey, while their counterparts need a significant initial outlay with lack of Automation and AI in aquaculture domain. Photovoltaic aerators also could not mitigate such anomalies completely as it outperforms in overcast days. This study highlighted the comparison and effectiveness of different types of aerators used and suggested that there is a pressing need to design aerators to solve these issues and make it affordable for small stakeholders.

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Section: Economic Analysismentioning

confidence: 99%

A Comprehensive Study on Paddle Wheel Aerator

Suranjit Roy,

Avinash Kumar

2024

Int Res J Adv Engg Hub

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“…On the other hand, DO also directly affects the feed coefficients and operating costs of the aquaculture process; thus, different DO levels may lead to significant differences in the economic efficiency of the same aquaculture model. For example, Anamika Yadav et al [9] suggested that the fish feeding rate is affected by changes in DO, as it was shown that this parameter significantly decreased with less than 20-30% of saturated DO. Further, the productivity of conventional ponds is limited to 0.4-1 kg fish/m 3 due to the dynamics of the natural DO level and dissolution efficiency of the water column; additional artificial aeration (mechanical aeration) can increase fish productivity by up to 4 kg fish/m 3 [10].…”

Section: Introductionmentioning

confidence: 99%

Design and Application of New Aeration Device Based on Recirculating Aquaculture System

Tong,

He,

2024

Applied Sciences

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This study optimized the design of an aeration device for pond engineered recirculating aquaculture systems (RASs) whose application is aimed at increasing dissolved oxygen (DO) levels in RAS aquaculture practice. DO is a key factor in aquaculture productivity, and oxygenators are the power devices used for regulating its levels in aquaculture ponds. In this study, grass carp (Ctenopharyngodon idellus) aquaculture trials were conducted in a self-built RAS by using the new aeration device (NAD); the microporous and impeller aeration components were individually tested in terms of performance, and then combined for the orthogonal testing of their operating parameters in order to assess the NAD’s oxygenation capacity. The test results show that the device effectively increased the dissolved oxygen levels in the RAS tank, enhanced the upper–lower water layer exchange and directional flow, and met the design and parameter selection requirements. Compared with the existing RAS oxygenation equipment, the NAD operated with the optimal parameters and increased the oxygen transfer rate in the pond water tank by 122%.

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An effective aeration system for high performance pond aeration at low energy cost

Aytac,

Kelestemur,

Tuna

2024

Aquacult Int

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With the effective use of aerators with low energy cost and high aeration performance, aquaculture areas can be developed and supported. The main objective of this study is to determine the optimal physical parameters of high aeration capacity high head conduits and to ensure low energy costs, thus to present a comprehensive review of its usability for pond aeration. In this study, a high-head gated conduit was used as the aeration unit. After obtaining the design that will maximize the aeration performance of the high-head gated conduit, a prototype model was developed to ensure its effective use in pond aeration. The parameters affecting the performance of this developed aeration system and the corresponding energy cost values were determined. According to the results, the most important parameters affecting the aeration performance are, respectively, flow rate, the opening of the gate, hydrostatic level, and jet plunge angle. In the optimal design, more than three times the unit volume of water circulating in the system is added to the system. The cost value of this operation in terms of energy was measured as 0.10 kWh/m3 air. The developed system was found to have significantly higher energy efficiency values compared to alternatives, based on specific energy consumption data.

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Economic comparison of venturi aeration system

Cited by 4 publications

References 42 publications

A Comprehensive Study on Paddle Wheel Aerator

A Comprehensive Study on Paddle Wheel Aerator

Design and Application of New Aeration Device Based on Recirculating Aquaculture System

An effective aeration system for high performance pond aeration at low energy cost

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