This project was undertaken at the penn state uty. thermoacoustic refrigeration at high amplitudes has married a high power acoustic driver (up to 100 W of acoustic power) to the resonator of the STAR(The Space Thermoacoustic Refrigerator) refrigerator

Overview of the device
The STAR has the ability to move about 5 Watts of heat and exhibited a peak coefficient of performance relative to Carnot about 20%.


The drivers for this refrigerator are 55% electric-to-acoustic efficient.The Shipboard Electronics Thermoacoustic Cooler (SETAC) dirver drives the STAR resonator. It allowed the study of the effect of nonlinear effects. at high acoustic amplitude, the power density of a thermoacoustic device varies as the square of the acoustic pressure amplitude. As a result, the study at these pressures becomes very important.

Details of Frankenfridge
Measurement of Exhaust Heat Flux
as a test bed for thermoacoustic components, A water circulation loop coupled to the hot heat exchanger has been added to the resonator in this project.
Heat Exchanger Model
the temperature sensors for the hot and cold side are mounted externally on the body of the resonator, very close to the hot and cold heat exchangers.
DeltaE Model
a linear computer model that predicts Frankenfridge performance and the actual measured performance are compared using the computer program called DeltaE
For further details, refer these links:
http://studentbank.in/report-thermoacous...ull-report
http://acs.psu.edu/thermoacoustics/refri...fridge.htm
http://freepatentsonline5647216.html

refer these pdf too:
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