
Proceedings Paper
Piezoelectric driven thermo-acoustic refrigeratorFormat | Member Price | Non-Member Price |
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Paper Abstract
Thermoacoustic refrigeration is an emerging refrigeration technology which does not rely for in its operation
on the use of any moving parts or harmful refrigerants. This technology uses acoustic waves to pump heat across a
temperature gradient. The vast majority of thermoacoustic refrigerators to date have used electromagnetic
loudspeakers to generate the acoustic input. In this paper, the design, construction, operation, and modeling of a
piezoelectric-driven thermoacoustic refrigerator are detailed. This refrigerator demonstrates the effectiveness of
piezoelectric actuation in moving 0.3 W of heat across an 18 degree C temperature difference with an input power of
7.6 W.
The performance characteristics of this class of thermoacoustic-piezoelectric refrigerator are modeled using
DeltaEC software and the predictions are validated experimentally. The obtained results confirm the validity of the
developed model. Furthermore, the potential of piezoelectric actuation as effective means for driving thermoacoustic
refrigerators is demonstrated as compared to the conventional electromagnetic loudspeakers which are heavy and
require high actuation energy.
The developed theoretical and experimental tools can serve as invaluable means for the design and testing of
other piezoelectric driven thermoacoustic refrigerator configurations.
Paper Details
Date Published: 27 April 2011
PDF: 10 pages
Proc. SPIE 7977, Active and Passive Smart Structures and Integrated Systems 2011, 79771T (27 April 2011); doi: 10.1117/12.880684
Published in SPIE Proceedings Vol. 7977:
Active and Passive Smart Structures and Integrated Systems 2011
Mehrdad N. Ghasemi-Nejhad, Editor(s)
PDF: 10 pages
Proc. SPIE 7977, Active and Passive Smart Structures and Integrated Systems 2011, 79771T (27 April 2011); doi: 10.1117/12.880684
Show Author Affiliations
D. G. Chinn, Univ. of Maryland, College Park (United States)
M. Nouh, Univ. of Maryland, College Park (United States)
M. Nouh, Univ. of Maryland, College Park (United States)
O. Aldraihem, King Saud Univ. (Saudi Arabia)
King Abdulaziz City for Science and Technology (Saudi Arabia)
A. Baz, Univ. of Maryland, College Park (United States)
King Saud Univ. (Saudi Arabia)
King Abdulaziz City for Science and Technology (Saudi Arabia)
A. Baz, Univ. of Maryland, College Park (United States)
King Saud Univ. (Saudi Arabia)
Published in SPIE Proceedings Vol. 7977:
Active and Passive Smart Structures and Integrated Systems 2011
Mehrdad N. Ghasemi-Nejhad, Editor(s)
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