Abstract
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.
Highlights
Environment management is one of the key aspects of hydro-power development in acquiring sustainable energy [1]
The results were used as parameters in order to maximize the benefit of these kinds of power plant [2]
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
Summary
Environment management is one of the key aspects of hydro-power development in acquiring sustainable energy [1]. Many researchers and inventors are interested in this method They are applying the free-flow vortex pattern as a source of kinetic power to drive the generator. This system can speed up the water flow and transform it into kinetic power to propel the turbine [9,10] In this field of study, Franz Zotloterer was the first to develop a vortex-powered generator [11]. With the design of the waterflow activity, the Earth’s gravity was applied to boost up the vortex speed inducted from low-head water sources [16,17] This created sufficient kinetic energy to propel the turbines tested in the system.
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