New Approach for Thermoacoustic Refrigeration

Published

July 1, 1998

Author(s)

J Xiao, Ray Radebaugh

Abstract

We suggest a new design configuration for thermoacoustic refrigeration that optimises the refrigeration effect caused by both the standing wave and the traveling wave. In current thermoacoustic refrigerators the refrigeration effect comes mainly from the standing wave component, in which the phase angle between the pressure and the velocity is 90 {degress}. In the oriffice pulse tube refrigerator the refrigeration effect caused by both the traveling wave and the standing wave components, we may be able to extend the temperature range of the thermoacoustic refrigerator down to the cryogenic range. The resulting devise is a thermoacoustic refrigerator with an orifice pulse tube as a cold end expander, or an orifice pulse tube cooler operating near the resonance condition. The new design configuration may have a higher efficiency than that of the orifice pulse tube refrigerator or the thermoacoustic refrigerator in the intermediate temperature range. Another advantage over the pulse tube is the ability to use a driver with a small displacement, sinve the device is operating near resonance. This paper will discuss the working process, the new configuration, and some preliminary modeling results of the new type of thermoacoustic refrigerator.

Proceedings Title

Advances in Cryogenic Engineering, Cryogenic Engineering Conference ||| Plenum Press

Volume

43/8

Conference Dates

July 1, 1997

Conference Title

Advances in Cryogenic Engineering

Pub Type

Conferences

Keywords

cryogenic, pulse tube, refrigeration, thermoacoustic

Citation

Xiao, J. and Radebaugh, R. (1998), New Approach for Thermoacoustic Refrigeration, Advances in Cryogenic Engineering, Cryogenic Engineering Conference ||| Plenum Press (Accessed May 2, 2024)