Development of a Hydropower Turbine Using Seawater from a Fish Farm

Rakibuzzaman,; Suh, Sang Hyun; Kim, Hyoung-Ho; Ryu, Youngtae; Kim, Kyung Yup

doi:10.3390/pr9020266

Cited by 10 publications

(5 citation statements)

References 33 publications

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“…Moreover, the efficiency increased to 5.56% at 0.17 m 3 /min, and the average efficiency increased to 6.27%. It is understood that changing the shape of the impeller and casing is the best solution to improving a pump's performance [43]. Figure 18 shows the cross-sectional view of the original and newly designed impellers.…”

Section: Optimum Modelmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh,

Roh

et al. 2024

Computation

Self Cite

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Small submersible drainage pumps are used to discharge leaking water and rainwater in buildings. In an emergency (e.g., heavy rain or accident), advance monitoring of the flow rate is essential to enable optimal operation, considering the point where the pump operates abnormally when the water level is increased rapidly. Moreover, pump performance optimization is crucial for energy-saving policy. Therefore, it is necessary to meet the challenges of submersible pump systems, including sustainability and pump efficiency. The final goal of this study was to develop an energy-saving and highly efficient submersible drainage pump capable of performing efficiently in emergencies. In particular, this paper targeted the hydraulic performance improvement of a submersible drainage pump model. Prior to the development of driving-mode-related technology capable of emergency response, a way to improve the performance characteristics of the existing submersible drainage pump was found. Disassembling of the current pump followed by reverse engineering was performed instead of designing a new pump. Numerical simulation was performed to analyze the flow characteristics and pump efficiency. An experiment was carried out to obtain the performance, and it was validated with numerical results. The results reveal that changing the cross-sectional shape of the impeller reduced the flow separation and enhanced velocity and pressure distributions. Also, it reduced the power and increased efficiency. The results also show that the pump’s efficiency was increased to 5.56% at a discharge rate of 0.17 m3/min, and overall average efficiency was increased to 6.53%. It was concluded that the submersible pump design method is suitable for the numerical designing of an optimized pump’s impeller and casing. This paper provides insight on the design optimization of pumps.

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Section: Optimum Modelmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh,

Roh

et al. 2024

Computation

Self Cite

View full text Add to dashboard Cite

show abstract

“…Moreover, the efficiency increased to 5.56% at 0.17 m 3 /min, and the average efficiency increased to 6.27%. It is understood that changing the shape of the impeller and casing is the best solution to improve the pump's performance [42]. Figure 18 shows the cross-sectional view of the original and newly designed impeller.…”

Section: Optimum Modelmentioning

confidence: 99%

Hydraulic Performance Optimization of a Submersible Drainage Pump

Rakibuzzaman,

Suh

et al. 2023

Preprint

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Small submersible drainage pumps discharge leaking water and rainwater in buildings. In an emergency (e.g., heavy rain or accident), monitoring the flow rate in advance is necessary to enable optimal operation, considering the point where the pump operates abnormally when the water level increases rapidly. In another, pump performance optimization is crucial for energy saving policy. Therefore, it is necessary to meet the challenges of submersible pump systems, including sustainability and pump efficiency. The final goal of this study is to develop an energy-saving, high-efficiency submersible drainage pump capable of responding to emergencies. In particular, this paper targeted the hydraulic performance improvement of a submersible drainage pump model. Before the development of driving mode-related technology capable of emergency response, we first tried to find a way to improve the performance characteristics of the existing submersible drainage pump. Rather than designing a new pump, we disassembled the current pump and reverse engineering. Then, numerical simulation was performed to analyze the flow characteristics and efficiency of the pump. Then, the pump test was carried out to obtain the performance and validated with numerical results. Results revealed that changing the cross-sectional shape of the impeller reduced the flow separation and enhanced velocity and pressure distributions. Also, it reduced the power and increased efficiency. Results also showed that the pump's efficiency increased to 5.56% at a discharge rate of 0.17 m3/min, and overall average efficiency increased to 6.53%. In addition, the submersible pump design method could be suitable for the optimized pump's impeller and casing numerically. This paper can provide insight and information on the design optimization of pumps.

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“…In total, four crossflow turbines with 24 blades and the same height (0.3 m) were tested at a water flowrate ranging from 0.02 to 0.06 m 3 The diameters of the turbines were 0.4, 0.5, 0.6, and 0.7 m, and the overall efficiency is shown in Table 5. Testing all turbines in the same setting (vortex-driven generator system) revealed that the five-blade propeller turbine with a 0.4 m height and 0.7 m diameter [21] achieved the highest efficiency of 13.92% at the 0.02 m 3 /s water flowrate.…”

Section: The Comparisonmentioning

confidence: 99%

“…The results were used as parameters in order to maximize the benefit of these kinds of power plant [2]. There are also many studies and developments on hydroelectricity, innovations in the transportation business and power industries, such as research on the development of a hydropower turbine using seawater from a fish farm [3].…”

Section: Introductionmentioning

confidence: 99%

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

Sritram

Suntivarakorn

2021

Energies

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In this research paper, the relationship between a crossflow turbine and propeller turbine size changes and the pond size in a free vortex power generation system was investigated. This relationship can be written in the form of a new mathematical equation using the principles of the response surface methodology (RSM) method. This study aimed to compare the efficiency of a crossflow turbine and propeller turbine to enhance a micro power plant from free vortex. The pond size in a micro power plant from free vortex was 1 m in diameter and 0.5 m in height with a 0.2 m outlet drain at the bottom. All turbines were tested at different water flowrates of 0.2, 0.3, 0.4, 0.5, and 0.6 m3/s to identify the rpm, water head, voltage, and electric current to access the waterpower, power output, and overall efficiency. At a 0.02 m3/s water flowrate, the crossflow turbine had greater overall efficiency than the propeller turbine, reaching 9.09% efficiency. From the comparison of the results of the two turbines used in the 0.5 m high cylinder-shaped generator pond, the turbine type, turbine size (height and diameter), number of blades, and water flowrate are key factors that affect the overall efficiency. The crossflow turbine can achieve greater efficiency than the propeller turbine in this generator system.

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Development of a Hydropower Turbine Using Seawater from a Fish Farm

Cited by 10 publications

References 33 publications

Hydraulic Performance Optimization of a Submersible Drainage Pump

Hydraulic Performance Optimization of a Submersible Drainage Pump

Hydraulic Performance Optimization of a Submersible Drainage Pump

The Efficiency Comparison of Hydro Turbines for Micro Power Plant from Free Vortex

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