Performance improvement of a new proposed Savonius hydrokinetic turbine: a numerical investigation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F20%3A00007894" target="_blank" >RIV/46747885:24210/20:00007894 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24620/20:00007894

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2352484720314335?via=ihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352484720314335?via=ihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.egyr.2020.10.072" target="_blank" >10.1016/j.egyr.2020.10.072</a>

Result language

angličtina

Original language name

Performance improvement of a new proposed Savonius hydrokinetic turbine: a numerical investigation

Original language description

Computational fluid dynamic analysis was conducted with a new proposed Savonius hydrokinetic turbine with a parabolic blade shape specifically geared toward a small-scale power extraction. This parabolic blade geometry was developed by manipulating a couple of disparate kinds of blades in the recent past i.e. semicircular and arc shaped followed by a straight arc. The developed hydrokinetic turbine was tested numerically in a symmetric channel and its performance was evaluated concerning the power, thrust and torque coefficients. Simulations were also implemented with two other mentioned blades. The effects of Reynolds number at different tip speed ratios on the dynamic and static performance of all three models were discussed as well. The present investigation demonstrated a gain of 7.7% and 12% in maximum power coefficient with the new proposed Savonius hydrokinetic turbine by parabolic blade shape than that of the arc shaped followed by a straight arc and semicircular, respectively. Likewise, for this new proposed turbine, the maximum value of static torque coefficient improved by 4% and 25.8% than that of the arc shaped followed by a straight arc and semicircular, severally. For all three simulated blade profiles, the best performance was experienced at an optimum value of tip speed ratio 0.98 and Reynolds number 2 × 105. However, the new proposed turbine at all Reynolds numbers and tip speed ratios in the scope of this research showed a better performance than the other simulated models.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/EF16_025%2F0007293" target="_blank" >EF16_025/0007293: Modular platform for autonomous chassis of specialized electric vehicles for freight and equipment transportation</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Energy Reports

ISSN

2352-4847

e-ISSN

—

Volume of the periodical

6

Issue of the periodical within the volume

11

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

3051-3066

UT code for WoS article

000602717100009

EID of the result in the Scopus database

2-s2.0-85095683324