Imperial College London
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ProfessorEricYeatman

Faculty of Engineering, Department of Electrical and Electronic Engineering

Head of Department of Electrical and Electronic Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6204e.yeatman CV

 
 
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Assistant

 

Ms Anna McCormick +44 (0)20 7594 6189

 
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Location

 

610aElectrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kang:2020:10.1016/j.apenergy.2020.114496,
author = {Kang, M and Yeatman, E},
doi = {10.1016/j.apenergy.2020.114496},
journal = {Applied Energy},
title = {Coupling of piezo- and pyro-electric effects in miniature thermal energy harvesters},
url = {http://dx.doi.org/10.1016/j.apenergy.2020.114496},
volume = {262},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Thermal energy harvesting from ambient heat into electricity is of interest due to its wide potential applicability. This paper demonstrates a moving beam thermal energy harvesting mechanism exploiting both pyro- and piezo-electric effects simultaneously, for use adjacent to a heat source with small temperature variations at low frequency (below 0.1 Hz). For the first time, the relative contributions of these two mechanisms in such a device is established both theoretically and experimentally, and a dynamic model is provided. The relative phase of the contributed currents is shown to be a critical factor, and methods are introduced to optimise this phase relationship, particularly by selection of the mechanical configuration. The reported prototype achieves around 0.4  for a temperature difference of around 15 K at frequency 0.02 Hz with an optimal condition in the fixed-fixed configuration about 90% above the fixed-free end configuration.
AU  - Kang,M
AU  - Yeatman,E
DO  - 10.1016/j.apenergy.2020.114496
PY  - 2020///
SN  - 0306-2619
TI  - Coupling of piezo- and pyro-electric effects in miniature thermal energy harvesters
T2  - Applied Energy
UR  - http://dx.doi.org/10.1016/j.apenergy.2020.114496
UR  - http://hdl.handle.net/10044/1/76804
VL  - 262
ER  -
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