Analytical model for the refrigeration power of the orifice pulse-tube refrigerator. Technical note

摘要: The pulse tube refrigerator is a cryocooler with potential for high reliability. regenerative operates low average pressures, small compression ratios, and only one moving part. In research conducted at the National Institute of Standards Technology, an orifice located closed, hot end system has been used to reach 60 K in stage. A gross refrigeration power 12 W measured 80 volume 30 cu m. paper presents development analytical model predict produced tube. Three versions are presented: first calculates quantities which independent dead volume; second neglects third describes volume. Experimental results confirm predictions by that proportional pressure, frequency, mass flow ratio, square dynamic pressure ratio. Results presented useful approximate design systems. assumes adiabatic conditions energy balance performed terms net enthalpy flow.more » Phasor analysis was found be very analyzing oscillations temperature, rate.« less