高效率的低温混合工质J-T节流制冷机的试验研究  

EXPERIMENTAL INVESTIGATION OF AN EFFICIENT MIXED-REFRIGERANT J-T CRYOCOOLER

作　　者：罗二仓[1] 周远[1] YakubaV.V. LobkoM.P. 

机构地区：[1]中科院低温技术实验中心,北京100080 [2]乌克兰科学院低温物理技术研究所,哈尔科夫300024

出　　处：《工程热物理学报》1997年第3期281-284,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金

摘　　要：A mixed-refrigerant J - T cooler using gas mixture （N2+CH4+C2H6+C3H8） is experimentally investigated in this paper. In the experiment, the influence of different discharging pressure, different sucking pressure and different hotinend temperature of heat exchanger on thermodynamic performance of the J - T cooler have been done experimentally. When working at condition of discharging pressure from 3.0MPa to 6.0MPa and sucking pressure from 0.1MPa to 0.12MPa, the mixed-refrigerant cooler can achieve the temperature of 80K to 82K and thermal efficiency of 10%, 3 to 5 times of pure nitrogen cooler. Consequently,using mixed refrigerant is effective way to improve the thermodynamic performance of J -T cooler.A mixed-refrigerant J - T cooler using gas mixture (N_2+CH_4+C_2H_6+C_3H_8) is experimentally investigated in this paper. In the experiment, the influence of different discharging pressure, different sucking pressure and different hotinend temperature of heat exchanger on thermodynamic performance of the J - T cooler have been done experimentally. When working at condition of discharging pressure from 3.0MPa to 6.0MPa and sucking pressure from 0.1MPa to 0.12MPa, the mixed-refrigerant cooler can achieve the temperature of 80K to 82K and thermal efficiency of 10%, 3 to 5 times of pure nitrogen cooler. Consequently,using mixed refrigerant is effective way to improve the thermodynamic performance of J -T cooler.

关 键 词：混合工质 节流制冷机 制冷机 

分 类 号：TB651[一般工业技术—制冷工程]