Nalazite se na CroRIS probnoj okolini. Ovdje evidentirani podaci neće biti pohranjeni u Informacijskom sustavu znanosti RH. Ako je ovo greška, CroRIS produkcijskoj okolini moguće je pristupi putem poveznice www.croris.hr
izvor podataka: crosbi !

Concept of flexible vertical-axis wind turbine with numerical simulation and shape optimization (CROSBI ID 260730)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Marinić-Kragić, Ivo ; Vučina, Damir ; Milas, Zoran Concept of flexible vertical-axis wind turbine with numerical simulation and shape optimization // Energy (Oxford), 167 (2019), 841-852. doi: 10.1016/j.energy.2018.11.026

Podaci o odgovornosti

Marinić-Kragić, Ivo ; Vučina, Damir ; Milas, Zoran

engleski

Concept of flexible vertical-axis wind turbine with numerical simulation and shape optimization

Vertical-axis wind turbines (VAWT) are becoming popular solutions for electric power generation. Among them, Savonius-type VAWTs have low rotational speed, reduced noise and ability to self-start, but their disadvantage is the low energy conversion efficiency. This paper investigates a novel VAWT concept and whether it can provide a higher energy conversion efficiency. The novel concept is a Savonius-type VAWT with flexible blades that change their shape passively due to aerodynamic and blade inertial forces during rotation. An initial design was optimized by a customized shape optimization workflow based on genetic algorithms. The blade design evaluation was performed by CFD model with two-way fluid- structure interaction. The optimization objective was to determine the optimal blade shape, thickness distribution and location of the blade support arms by maximizing the power coefficient and keeping structural stresses below the design limit. The results show that 8% improvement of the power coefficient is possible while keeping the structural stress within the design limit. A detailed performance analysis in the paper shows that there is potential for further optimization considering annual energy production for a selected location. For that purpose, the proposed optimization workflow can serve as a tool for development of future designs.

Vertical axis wind turbine ; Savonius wind turbine ; Shape optimization ; Fluid structure interaction ; B-spline

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

167

2019.

841-852

objavljeno

0360-5442

1873-6785

10.1016/j.energy.2018.11.026

Povezanost rada

Strojarstvo

Poveznice
Indeksiranost