We designed and constructed a dynamic experimental apparatus to measure the instantaneous velocity and pressure in the multi-bypass pulse tube refrigerator with two-bypass tube. DC-flow phenomena are observed from exp...We designed and constructed a dynamic experimental apparatus to measure the instantaneous velocity and pressure in the multi-bypass pulse tube refrigerator with two-bypass tube. DC-flow phenomena are observed from experimental results. The reasons of multibypass version improved the performance of pulse tube refrigerator were given.展开更多
A dynamic experimelltal apparatus to measure the instantaneous velocity and pres-sure in the pulse tube refrigerator has been presenced. DC-flow rate airs evaluated from experimental measuremellts. The DC-flow is a ki...A dynamic experimelltal apparatus to measure the instantaneous velocity and pres-sure in the pulse tube refrigerator has been presenced. DC-flow rate airs evaluated from experimental measuremellts. The DC-flow is a kind of losses for pulse tube refrigerator.The reasons of multi-bypass version improved the performance of pulse tube refrigerator are given.展开更多
This paper describes the design principle and test results of a two-stage G-M refrigerator with lowest refrigerating temperature of 3.0K and cooling capacity of 0.5W and 4.3W at 4.2K and 10.0K respectively. The main p...This paper describes the design principle and test results of a two-stage G-M refrigerator with lowest refrigerating temperature of 3.0K and cooling capacity of 0.5W and 4.3W at 4.2K and 10.0K respectively. The main points of the successful development of this prototype are following:1. Using ErNi2 as regenerator matrix in second stage.2. Properly designing the structure of 2-stage regenerator according to the results of the numerical calculation.3. Properly designing the structure of the heat exchanger in cold head after carefullyanalysizing it.展开更多
文摘We designed and constructed a dynamic experimental apparatus to measure the instantaneous velocity and pressure in the multi-bypass pulse tube refrigerator with two-bypass tube. DC-flow phenomena are observed from experimental results. The reasons of multibypass version improved the performance of pulse tube refrigerator were given.
文摘A dynamic experimelltal apparatus to measure the instantaneous velocity and pres-sure in the pulse tube refrigerator has been presenced. DC-flow rate airs evaluated from experimental measuremellts. The DC-flow is a kind of losses for pulse tube refrigerator.The reasons of multi-bypass version improved the performance of pulse tube refrigerator are given.
文摘This paper describes the design principle and test results of a two-stage G-M refrigerator with lowest refrigerating temperature of 3.0K and cooling capacity of 0.5W and 4.3W at 4.2K and 10.0K respectively. The main points of the successful development of this prototype are following:1. Using ErNi2 as regenerator matrix in second stage.2. Properly designing the structure of 2-stage regenerator according to the results of the numerical calculation.3. Properly designing the structure of the heat exchanger in cold head after carefullyanalysizing it.