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EFFICIENCY ADVANTAGES OF THE CONICAL ARCHIMEDEAN SCREW TURBINE AND COMPARATIVE ANALYSIS WITH THE CYLINDRICAL SCREW

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ALTERNATIVE ENERGY

ALTERNATIVE ENERGY

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Abstract. Introduction. Against the backdrop of global climate change and energy shortages, the use of renewable energy sources has become increasingly important. Hydropower is considered an environmentally friendly and promising energy source, but the construction of large-scale hydroelectric power stations can harm ecosystems. Therefore, there is a need for low-capacity, cost-effective, and environmentally safe devices. Improving the efficiency of the conical Archimedean screw turbine and comparing it to the cylindrical screw is a relevant topic. Methodology. Experiments were conducted under laboratory conditions using a specially prepared test bench. The screw length was 1000 mm, with an initial diameter of 55 mm and a final diameter of 82.5 mm. The inclination angle α was studied at values of 20°, 25°, and 30°. Water flow velocity ranged from 1 to 3 m/s. Efficiency was evaluated using the formula η = Pf / Pk. The variation of the radius along the screw was expressed by: r(x) = r₀ + ((r₁–r₀)/L)x. Results. According to experimental data: Maximum efficiency (61%) was observed at a flow speed of 2 m/s. An inclination angle of α = 25° gave the most optimal result. The conical screw produced 10–12% more torque than the cylindrical screw. Conclusion. The experimental results show that both the α angle and flow velocity significantly influence the efficiency of the Archimedean screw turbine. The conical screw offers higher output, better flow distribution, and greater torque. These turbines are recommended as energy-efficient solutions for small water resource systems.

AUTHORS

B.Boynazarov

Farg'ona davlat texnika universiteti

R.Murodov

Farg'ona davlat texnika universiteti

M.Murodov

Namangan Davlat Texnika universiteti

Tags

# energy balance# энергетический баланс# Arximed vint turbinasining samar# konussimon vint# past bosimli oqim# suv energiyasi# α burchak# energiya balansi# эффективность турбины винта Архи# конический винт# поток с низким давлением# гидроэнергия# угол α# efficiency of Archimedean screw# conical screw# low-pressure flow# water energy# α angle

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Article Identifiers

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https://eroi.uz/11.0032/A0825-0026

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Not Available

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