이중 입구형 맥동관 냉동기에서의 압력 파형 측정Pressure Measurement in Double Inlet Pulse Tube Refrigerator
- Other Titles
- Pressure Measurement in Double Inlet Pulse Tube Refrigerator
- Authors
- 정제헌; 남관우; 정상권; 정은수
- Issue Date
- 2004
- Publisher
- 대한설비공학회
- Keywords
- Pulse tube refrigerator(맥동관 냉동기); Cryocooler(극저온 냉동기); Double Inlet(이중입구); Regenerator(재생기); Pulse tube refrigerator(맥동관 냉동기); Cryocooler(극저온 냉동기); Double Inlet(이중입구); Regenerator(재생기)
- Citation
- 설비공학 논문집, v.16, no.4, pp.390 - 396
- Journal Title
- 설비공학 논문집
- Volume
- 16
- Number
- 4
- Start Page
- 390
- End Page
- 396
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/26371
- ISSN
- 1229-6422
- Abstract
- A double-inlet pulse tube refrigerator was fabricated as a U-shape with Φ19.0 mm×125 mm regenerator packed by #200 stainless steel mesh and Φ12.7 mm×125 mm pulse tube. A pressure sensor was installed at the inlet of the regenerator and a differential pressure sensor was installed across the bypass. Amplitude of the pulsating pressure was independent of the opening of the orifice and the bypass valves. Helium flow through the orifice and the bypass was calculated based on the measured pressure. Energy loss through the orifice and the bypass was evaluated with the measured pressure and the calculated helium flow rate. The energy loss, which is equivalent to the refrigeration capacity at the cold end of the ideal pulse tube refrigerator, was mainly generated through the orifice. It was proportional to the opening of the orifice valve, but the real refrigerator displayed the best performance at the optimized opening of the orifice valve. This optimized performance of the tested pulse tube refrigerator can be explained by additional refrigeration losses. As an example, the shuttle heat transfer loss of the pulse tube was calculated from the measured experimental data.
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Collections - College of Engineering > Department of Mechanical and System Design Engineering > 1. Journal Articles
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