Triple-Expansion Stirling-Cycle Refrigerator
Among the advantages of the Stirling-cycle refrigerator are its compactness and the fact that it lends itself well to miniaturization. For instance, 0.5 W of refrigeration at 77°K has been obtained with a 25-W input and a total weight, including the drive motor and the heat exchanger, of 5 lb. These qualities are especially favorable in airborne applications, e.g., in infrared mapping. Since it seems likely that in the future, airborne applications will occur that need much lower temperatures, e.g., 10°K or below, it seemed worthwhile to investigate how low a temperature a miniature Stirling refrigerator might achieve.
KeywordsHeat Capacity Regenerator Matrix Heat Leak Expansion Space Refrigeration Capacity
Unable to display preview. Download preview PDF.
- 1.G. Prast, Philips Tech. Rev., 26 (1): 1 (1965).Google Scholar
- 3.R. B. Fleming, “Regenerators in Cryogenic Refrigerators,” Tech. Rept. AFFDL-TR-68–143 (Sept. 1968)Google Scholar
- 3a.R. B. Fleming, also U.S. Patent 3,262,277 (July 26, 1966).Google Scholar
- 4.R. W. Stuart, B. M. Cohen, and W. Hartwig, in: Advances in Cryogenic Engineering, Vol. 15, Plenum Press, New York (1970), p. 428.Google Scholar