Abstract
Rapid developments in clean energy, life science, and aerospace engineering have put forward more requirements for refrigeration technology with temperature below 180 K. Mixed-refrigerant Joule-Thomson (MRJT) refrigeration technology has distinct advantages in this temperature range. In this paper, the thermodynamic analysis of the Linde Hampson cycle and single-stage separation cycle at the refrigeration temperature from 100 to 180 K was carried out, and the energy and exergy models were established. Nitrogen, methane, tetrafluoromethane, ethane, propane, iso-butane, and iso-pentane were employed as the working fluids. The results showed that the performance of Linde-Hampson cycle is close to those of the single-stage separation cycle at the cooling temperature of 180 K. The COP of the single-stage separation cycle is 0.193 with 33.60% exergy efficiency at the temperature of 100 K, and in the Linde-Hampson cycle and single-stage separation cycle, the recuperator exergy loss accounts for 28.45% and 23.45% respectively, exergy losses from recuperator and condenser are the main components in the system.
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Acknowledgements
This work was supported by National Natural Science Foundation of China (Grant No. 52106016), Natural Science Foundation of Shandong Province, China (Grant No. ZR2021QE219), and Key R&D Program of Shandong Province, China (Grant No. 2022CXGC020901).
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Wei, Y., Wu, J., Song, Q., Wang, D., Sun, D., Wang, H. (2023). Thermodynamic Analysis of Single-Stage Mixed-Refrigerant Joule-Thomson Cycle at Cooling Temperature from 100 to 180 K. 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_49
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DOI: https://doi.org/10.1007/978-981-99-6128-3_49
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