In this paper, a new design scheme for counter-rotating horizontal-axis tidal turbines
(CRHATTs) is introduced using blade element momentum (BEM) theory. The coordinated …

In the worldwide effort to decarbonize the electricity generation, increasing the energy
performance of renewable energy conversion systems is a continuing global concern and …

The improvement of wind turbine performance poses a constant challenge to researchers
and designers in the field. As a result, the literature presents new concepts of wind turbines …

Increasing the efficiency of wind power conversion into electricity poses major challenges to
researchers and developers of wind turbines, who are striving for new solutions that can …

The paper presents a comparative analysis on the steady-state behavior of two counter-
rotating wind turbines with same components, where the generator can operate as a counter …

Wind energy conversion systems play a major role in the transition to carbon-neutral power
systems, and obviously, a special attention is paid in identifying the most effective solutions …

The paper presents a general approach to the steady-state efficiency analysis of one degree
of freedom (1-DOF) speed increasers with one or two inputs, and one or two outputs …

The paper discusses the steady-state modeling of wind turbines with two counter-rotating
wind rotors and counter-rotating electric generator, which additionally employs a two …

The paper presents a comparative study of the efficiency of a planetary speed increaser with
spur gears used in wind turbines with one rotor and a counter-rotating electric generator …

The paper presents a novel configuration of a 1-degree-of-freedom (1-DOF) planetary speed
increaser with two inputs and two outputs, designed for wind turbines with counter-rotating …