Simultaneous wind and solar energy harvesting with inverted flags

TY - JOUR

T1 - Simultaneous wind and solar energy harvesting with inverted flags

AU - Silva-Leon, Jorge

AU - Cioncolini, Andrea

AU - Nabawy, Mostafa R.A.

AU - Revell, Alistair

AU - Kennaugh, Andrew

N1 - Publisher Copyright: © 2019 Elsevier Ltd

PY - 2019/4/1

Y1 - 2019/4/1

N2 - This paper presents a novel wind/solar energy-harvesting device based on the inverted flag concept that combines flexible piezoelectric strips with flexible photovoltaic cells to simultaneously harvest both wind and solar energy. Three inverted flags built using off-the-shelf components were experimentally investigated under controlled wind and illumination conditions to analyse their dynamics and electrical power generation capability. Our results provide an improved understanding of the dynamics of inverted flags that incorporate flexible piezoelectric strips and flexible solar panels, and indicate that the piezoelectric strips mainly increase the damping of the flags, while the solar panels act as an added mass. The power measurements show that the wind/solar energy-harvesting device proposed here is a viable concept that is capable of generating up to 3–4 mW of total power, enough to meet the demand of remote sensors and small-scale portable electronics, for wind speeds varying from 0 m/s (calm) to about 26 m/s (storm/whole gale) and 1.8 kLux constant light exposure, suggesting a rather diversified range of potential practical applications.

AB - This paper presents a novel wind/solar energy-harvesting device based on the inverted flag concept that combines flexible piezoelectric strips with flexible photovoltaic cells to simultaneously harvest both wind and solar energy. Three inverted flags built using off-the-shelf components were experimentally investigated under controlled wind and illumination conditions to analyse their dynamics and electrical power generation capability. Our results provide an improved understanding of the dynamics of inverted flags that incorporate flexible piezoelectric strips and flexible solar panels, and indicate that the piezoelectric strips mainly increase the damping of the flags, while the solar panels act as an added mass. The power measurements show that the wind/solar energy-harvesting device proposed here is a viable concept that is capable of generating up to 3–4 mW of total power, enough to meet the demand of remote sensors and small-scale portable electronics, for wind speeds varying from 0 m/s (calm) to about 26 m/s (storm/whole gale) and 1.8 kLux constant light exposure, suggesting a rather diversified range of potential practical applications.

KW - Flexible piezoelectric strip

KW - Flexible solar panel

KW - Inverted flag

KW - Limit-cycle flapping

KW - Simultaneous wind/solar energy harvesting

UR - http://www.scopus.com/inward/record.url?scp=85061199209&partnerID=8YFLogxK

U2 - 10.1016/j.apenergy.2019.01.246

DO - 10.1016/j.apenergy.2019.01.246

M3 - 文章

AN - SCOPUS:85061199209

SN - 0306-2619

VL - 239

SP - 846

EP - 858

JO - Applied Energy

JF - Applied Energy

ER -