CREATION OF MICROCRYOGENIC SYSTEMS ON MULTICOMPONENT WORKING BODIES REALIZED A MODIFY KLEEMENKO'S CYCLE

Abstract

The increase of efficiency and reliability of microcryogenic systems on a level of cryostatting 80 K it is possible to provide due to application in them of multicomponent working bodies (МWB). Thus the choice of thermodynamic cycle of system and its technological circuit is important. Compressor throttle systems of cooling on МWB of optimum structures are experimentally compared which realize a throttle regenerative cycle (Linde cycle), one-flow cascade cycle (Kleemenko's cycle) and cycle with flow of interim pressure and phases separation (modify Kleemenko's cycle). Researches have shown that exergic efficiency of cold part of the offered microcryogenic system at pressure of forcing 2,35 MPа and temperature of cryostatting 80 K achieves value 0,23 that in 1,7 times it is more than at the system realizing a Linde cycle and in 1,4 times it is more than at the system working on one-flow cascade Kleemenko's cycle.