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 ...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.展开更多
文摘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.
