Mathematical Problems in Engineering / 2019 / Article / Fig 7

Research Article

Effect of Thermal Cycling on Operational Characteristics and Lifetime Prediction of Space Pulse Tube Refrigerator

Figure 7

Dependence of PTR performance on the heat reject temperature: (a, b) 1 W@60 K PTR; (c, d) 5 W@80 K PTR.
(a)
(b)
(c)
(d)