Performance improvement of the axial self-rectifying impulse air-turbine for wave energy conversion by multi-row guide vanes: Design and experimental results

Design of short Venturi flow meters for incompressible and isothermal flow applications

“…Venturi meters have been employed in various industries for measuring volume flow rates since the late 19th century [ 1 ]. The Venturi effect applications extend beyond flow measurement and include a wide range of uses, including carburettor systems [ 2 ], gasifier systems [ 3 ], steam ejectors [ 4 ], spray nozzles, wind tunnels [ [5] , [6] , [7] , [8] , [9] ], scrubbers [ 10 ], turbines [ [11] , [12] , [13] ], the production of biodiesel [ 14 ], and the harnessing of waste kinetic energy [ 15 ]. Venturi meters offer several advantages over conventional instruments, including simplicity, reliability, and minimal pressure loss.…”

A 3D Printed bi-directional Turbine for Thermoacoustic Standing Wave Environment at an Atmospheric Pressure

“…It is also used in energy production devices like in a geothermal power plant [5] or organic power plant [6]. In more recent development, the turbine with the utilization of appropriate guiding vane have found its use in the field of reciprocating and oscillatory flow condition, a condition that can be found in ocean engineering [7] as well as thermoacoustic technology [8].…”

“…In bi-direction turbine, the role of the guiding vane, also knowns as stator, and the rotating vane known as rotor is important. The guiding vane guides the fluid to flow into the rotating vane [7]. Three major categories of bidirectional turbines were reported in the literature: the wells turbine [28], the radial impulse turbine [29], and the axial impulse turbine [7].…”

“…The guiding vane guides the fluid to flow into the rotating vane [7]. Three major categories of bidirectional turbines were reported in the literature: the wells turbine [28], the radial impulse turbine [29], and the axial impulse turbine [7]. The axial impulse turbine consists of two guide vanes and a rotor is sandwiched between them.…”

Influence of vortex interactions on the exergy transfer and performance of OWC wells turbine

“…Owing to the airfoils of the yellow-colored rotor in Figure 1, the turbine always maintains a unidirectional rotation during the oscillating motions of waves. 3 Considering the characteristics of simple structures, reliable operation, and high speed, the Wells turbine plays an important role in OWC systems. 4,5 However, subject to the stall of the self-rectifying air turbine under large flow rates, the energy conversion efficiency is relatively low, resulting in decreased economic benefits of OWC systems.…”