Performance analysis of hybrid vibrational energy harvesters with experimental verification

Ram Mohan Sri Ramdas, Rudra Pratap

Research output: Contribution to journalArticle

Abstract

In the present work, performance indices for a hybrid energy harvester (HEH) that is composed of piezoelectric and electrodynamic or electromagnetic mechanisms of energy conversion are analyzed. Performance of a HEH is defined in terms of Q-normalized power factor and efficiency of conversion. They are observed to acutely depend on coupling strength or figures of merit in both piezoelectric and electrodynamic domains. The influence of figures of merit on the Q-normalized power factor, and the limits of conversion efficiency are explored. Based on the studies, a suitable range for figures of merit that would maximize both Q-normalized power factor and conversion efficiency in hybrid harvesters is proposed. The proposed idea is verified experimentally for the appropriate values of figures of merit and efficiencies by fabricating and testing four experimental models of the HEHs.

Original languageEnglish (US)
Article number075008
JournalSmart Materials and Structures
Volume27
Issue number7
DOIs
StatePublished - May 29 2018

Fingerprint

Harvesters
figure of merit
Electrodynamics
Conversion efficiency
electrodynamics
Energy conversion
energy
energy conversion
Testing
electromagnetism

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

Cite this

@article{909151b5b0ab45fba2c40d0a88ce61a5,
title = "Performance analysis of hybrid vibrational energy harvesters with experimental verification",
abstract = "In the present work, performance indices for a hybrid energy harvester (HEH) that is composed of piezoelectric and electrodynamic or electromagnetic mechanisms of energy conversion are analyzed. Performance of a HEH is defined in terms of Q-normalized power factor and efficiency of conversion. They are observed to acutely depend on coupling strength or figures of merit in both piezoelectric and electrodynamic domains. The influence of figures of merit on the Q-normalized power factor, and the limits of conversion efficiency are explored. Based on the studies, a suitable range for figures of merit that would maximize both Q-normalized power factor and conversion efficiency in hybrid harvesters is proposed. The proposed idea is verified experimentally for the appropriate values of figures of merit and efficiencies by fabricating and testing four experimental models of the HEHs.",
author = "{Sri Ramdas}, {Ram Mohan} and Rudra Pratap",
year = "2018",
month = "5",
day = "29",
doi = "10.1088/1361-665X/aabf08",
language = "English (US)",
volume = "27",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "7",

}

Performance analysis of hybrid vibrational energy harvesters with experimental verification. / Sri Ramdas, Ram Mohan; Pratap, Rudra.

In: Smart Materials and Structures, Vol. 27, No. 7, 075008, 29.05.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Performance analysis of hybrid vibrational energy harvesters with experimental verification

AU - Sri Ramdas, Ram Mohan

AU - Pratap, Rudra

PY - 2018/5/29

Y1 - 2018/5/29

N2 - In the present work, performance indices for a hybrid energy harvester (HEH) that is composed of piezoelectric and electrodynamic or electromagnetic mechanisms of energy conversion are analyzed. Performance of a HEH is defined in terms of Q-normalized power factor and efficiency of conversion. They are observed to acutely depend on coupling strength or figures of merit in both piezoelectric and electrodynamic domains. The influence of figures of merit on the Q-normalized power factor, and the limits of conversion efficiency are explored. Based on the studies, a suitable range for figures of merit that would maximize both Q-normalized power factor and conversion efficiency in hybrid harvesters is proposed. The proposed idea is verified experimentally for the appropriate values of figures of merit and efficiencies by fabricating and testing four experimental models of the HEHs.

AB - In the present work, performance indices for a hybrid energy harvester (HEH) that is composed of piezoelectric and electrodynamic or electromagnetic mechanisms of energy conversion are analyzed. Performance of a HEH is defined in terms of Q-normalized power factor and efficiency of conversion. They are observed to acutely depend on coupling strength or figures of merit in both piezoelectric and electrodynamic domains. The influence of figures of merit on the Q-normalized power factor, and the limits of conversion efficiency are explored. Based on the studies, a suitable range for figures of merit that would maximize both Q-normalized power factor and conversion efficiency in hybrid harvesters is proposed. The proposed idea is verified experimentally for the appropriate values of figures of merit and efficiencies by fabricating and testing four experimental models of the HEHs.

UR - http://www.scopus.com/inward/record.url?scp=85049690528&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85049690528&partnerID=8YFLogxK

U2 - 10.1088/1361-665X/aabf08

DO - 10.1088/1361-665X/aabf08

M3 - Article

AN - SCOPUS:85049690528

VL - 27

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 7

M1 - 075008

ER -