Steady-State Operation of the Idealized Vuilleumier Refrigerator
A heat-driven refrigerator was first patented by Vullteumier in 1913. Related designs were patented by Vannevar Bush in 1938 and K. W. Taconis in 1951. While all of these involve different physical apparatus, they are similar in principle of operation. All produce refrigeration at a low temperature, with power being supplied by a heat source at a high temperature and heat rejected at an intermediate temperature. These processes are accomplished by forcing gas to flow between three variable volumes at three different temperatures by the motion of two regenerators (displacers), the total volume of the refrigerator remaining constant.
KeywordsPhase Angle Dead Volume Maximum Cool Optimum Cool Cryogenic Engineer
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