Efficiency evaluation of a ductless Archimedes turbine: Laboratory experiments and numerical simulations

Abstract

The journal considers articles on the following themes, provided the link to renewable and sustainable energy is clear and thoroughly examined: Energy resources-bioresources (e.g. biomass, waste), fossil fuels (including natural gas), geothermal, hydrogen, hydropower, nuclear, marine and ocean energy, solar and wind Applications-buildings, industry and transport Utilization-batteries, conversion technologies, fuel cells, storage technologies, technical developments and technology scaling Environment-atmosphere, climate issues, meteorology, mitigation technologies (e.g. carbon capture and storage (CCS), carbon capture and utilization (CCU), solar radiation management) Techno-socioeconomic aspects-health, industry, policy, political, regulatory, social (e.g. access, education, equality, equity) Systems-carbon accounting, energy-food-water nexus, energy modelling, life cycle assessment (LCA), nutrient-energy-water (NEW) nexus, smart infrastructure AUTHOR INFORMATION PACK 4 Nov 2020 www.elsevier.com/locate/rser 2 Sustainability-the United Nations Sustainability Development Goals (SDGs) AUDIENCE. Scientists, researchers and consultants involved in all aspects of renewable energy.

Application of a central composite face-centered design in the optimization of an Archimedean hydrokinetic turbine

“…It is highlighted that RSM is able to recognize the interaction effects and the influence of the geometric parameters on the , which was calculated as expressed in Eq. (1) [2]. = 0.5 3 (1) where is the power produced by the turbine, which is equal to the product between the torque generated ( ) by the fluid on the turbine and the turbine rotation velocity ( ).…”

“…In turn, is conventionally represented as a function of the tip speed ratio (TSR), which can be obtained by using Eq. (2) [2].…”

“…An Archimedean screw turbine (AST) can be implemented for a hydrokinetic application due to its lower installation, maintenance and operating costs, high efficiency and environmental advantages in comparison with alternative hydrokinetic systems used to convert the energy from naturally flowing water (streams, rivers, tidal estuaries, ocean currents) into electricity, which in turn can be used in rural areas and developing countries [1,2,3].…”

An Analysis on Performance of Pico-hydro with Archimedes Screw Model Viewed from Turbine Shaft Angle

“…This problem causes disturbances, such as unstable power and the output that becomes smaller and also affects the performance results on other properties, as underlined by Kozyn and Lubitz [13]. Gianlucaet et al [14] and Shahverdi et al [15] conducted studies by comparing the results of experiments in the laboratory and the results of simulations using software on a computer, in which the most important component that is examined is the slope of the support shaft. Their findings focused section on the slope of the shaft had an effect on the maximum efficiency of the generator with low discharge.…”

Assessment of turbine stages and blade numbers on modified 3D Savonius hydrokinetic turbine performance using CFD analysis

“…Figure 4 also showed the performance of various types of the wind turbine. Furthermore, several pioneer studies have been conducted on cross-flow turbine types to improve the efficiency of water, such as Darrius (Zitti et al, 2020), Archimedes (Liu et al, 2019), Kaplan (Zhou et al, 2007;Liu et al, 2008) wind machines (Menet, 2004) Turbine stages and blade numbers (Hadi et al, 2019). Most studies conducted on water turbines are directed to develop Savonius performance due to its several advantages, such as having a simple structure, ease to modify and ability to operate at low fluid speeds.…”