Thermodynamic analysis of an ideal four-valve pulse tube refrigerator
✍ Scribed by G. Kaiser; H. Brehm; M. Thürk; P. Seidel
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 641 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
By applying the first law of thermodynamics
for open systems to subvolumes of a four-valve pulse tube refrigerator, we have calculated its ideal cold generating process. The coefficient of performance increases for a decrease in the ratio of high to low pressure. In the limit of a pressure ratio of 1 the FVPTR reaches the Carnot-COP. The pressure ratio is limited to a maximum of 3.17 for the use of rare gases leading to a maximum specific performance of 1.47 W MPa-' cm-3 Hz-' with respect to low pressure, pulse tube volume and operating frequency. Using diatomic gases the pressure ratio and the specific performance are 2.64 and 1.12 W MPa-' cm-3 Hz-', respectively.