摘要
首次在80K温区脉管制冷机中采用混合工质进行了实验研究,实验结果表明,在其它运行参数不变的情况下,在氦氢二元混合工质中,当氢的摩尔浓度为20%时,可获得比纯质氦高的制冷量。
Experimental study on pulse tube refrigerator in 80K temperature region using gas mixture has been carried out. The preliminary results show that the cooling capacity using helium-hydrogen mixture with the hydrogen mole fraction of 20% is higher than that using pure helium when keeping other operating parameters unchanged.
出处
《低温工程》
CAS
CSCD
北大核心
1999年第5期30-33,共4页
Cryogenics
基金
国家自然科学基金!59586002