Abstract
High temperature superconductivity and liquefaction technology develop rapidly in recent years, and the higher requirement for the cryogenic devices supplying more cooling power and higher efficiency is essential. Pulse tube cryocooler is a promising choice due to its advantages of no moving part under low temperature, simpler structure, high reliability and long life. This work introduces the optimizations on a coaxial high-power pulse tube cryocooler by regenerator inner diameter of 100 mm and pulse tube out diameter of 50 mm with 1mm wall thickness. To get the optimized thickness of flow straightener at the cold end, both the cold end and the warm end were tested experimentally by different thickness flow straighteners respectively. Different groups of regenerator screen mesh and two regenerators of 65mm and 80mm were tested, too. A relative Carnot efficiency of 18.7% associated with Cooling power of 300W@124.7K was got.
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The project is supported by National Natural Science Foundation of China (Number 52076151).
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Dai, H., Zhu, S. (2023). Experiment Study a High-Power Pulse Tube Cryocooler. In: Qiu, L., Wang, K., Ma, Y. (eds) Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022. ICEC28-ICMC 2022. Advanced Topics in Science and Technology in China, vol 70. Springer, Singapore. https://doi.org/10.1007/978-981-99-6128-3_73
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DOI: https://doi.org/10.1007/978-981-99-6128-3_73
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