The operation of a MEMS-based micro heat engine at resonant and off-resonant conditions is presented. Both model and experiment are used to investigate resonant and off-resonant operation of the engine. In this work, we look at the pressure-volume (PV) diagrams of an engine operated at resonance and off-resonance. Model predictions of the PV diagram are in favorable agreement with measured data. The results show that resonant operation is beneficial. At resonance, the pressure and volume in the engine cavity are decoupled and more mechanical work is observed. The PV diagram describes an elliptical shape. However, for an off-resonant operation the pressure and volume become more coupled and less mechanical work is observed. The PV diagram is described by a sigmoidal shape.
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15 May 2010
Research Article|
May 18 2010
Cyclic operation of a MEMS-based resonant micro heat engine: Experiment and model
H. Bardaweel;
H. Bardaweel
1School of Mechanical and Materials Engineering,
Washington State University
, Pullman, Washington, 99164 USA
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R. Richards;
R. Richards
1School of Mechanical and Materials Engineering,
Washington State University
, Pullman, Washington, 99164 USA
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C. Richards;
C. Richards
a)
1School of Mechanical and Materials Engineering,
Washington State University
, Pullman, Washington, 99164 USA
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M. Anderson
M. Anderson
2Department of Mechanical Engineering,
University of Idaho–Moscow
, Idaho, 83844 USA
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a)
Electronic mail: cill@wsu.edu.
J. Appl. Phys. 107, 104901 (2010)
Article history
Received:
November 24 2009
Accepted:
February 27 2010
Citation
H. Bardaweel, R. Richards, C. Richards, M. Anderson; Cyclic operation of a MEMS-based resonant micro heat engine: Experiment and model. J. Appl. Phys. 15 May 2010; 107 (10): 104901. https://doi.org/10.1063/1.3372755
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