Mikhail Boiarski

A Throttle Cycle Cryocooler Operating with Mixed Gas Refrigerants in 70 K to 120 K Temperature Range

A low-cost, throttle-cycle cryocooler based on a single-stage, oil-lubricated compressor has been designed to meet requirements for cooling electronic devices, water traps, medical and many other applications. Mixed refrigerants of different types are used to operate in the appropriate temperature range within 70 to 120 K.

Comparative Performance of Throttle Cycle Cryotiger Coolers Operating with Different Mixed Refrigerants

Small-scale Cryotiger coolers are based on commercially available hermetic oil-lubricated compressors and operate in a range of 70 to 200 K with different mixed refrigerants. Modern coolers efficiently operate with both flammable HC-based and nonflammable HFC-based refrigerants. This allows compliance with the requirements of many customers involved in the design of integrated systems.

Water trap refrigerated by a throttle-cycle cooler using mixed gas refrigerant

The design features and the performance of the cooler are discussed to emphasize characteristics of this refrigeration system compared to other cryocoolers used for water traps. A throttle-cycle cooler based on one-stage oil-lubricated compressor provides water trap temperature in a narrow range of 115 K to 130 K depending upon the heat load on the water trap surface.