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1.上海理工大学能源与动力工程学院 上海 200093
2. 挚量智控生物科技有限公司 济南 250101
赵军,男,副教授,上海理工大学能源与动力工程学院,13917779816,E-mail:zhaojun@usst.edu.cn。研究方向:制冷与低温医学工程高端装备技术,低温余热利用技术。Zhao Jun, male, associate professor, School of Energy and Power Engineering, University of Shanghai for Science and Technology, 86-13917779816, E-mail: zhaojun@usst.edu.cn. Research fields: refrigeration and low temperature medical engineering high-end equipment technology, low temperature waste heat utilization technology.
收稿:2025-11-11,
修回:2026-02-03,
录用:2026-02-03,
网络首发:2026-04-16,
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王鑫洋,赵军,李帅等.三元混合工质R600a+R1150+R50低温实验研究[J].制冷学报,
Wang Xinyang,Zhao Jun,Li Shuai,et al.Experimental Study on Ternary Mixed Refrigerant R600a + R1150 + R50 at Low Temperature[J].Journal of Refrigeration,
王鑫洋,赵军,李帅等.三元混合工质R600a+R1150+R50低温实验研究[J].制冷学报, DOI:10.12465/issn.0253-4339.20251111002.
Wang Xinyang,Zhao Jun,Li Shuai,et al.Experimental Study on Ternary Mixed Refrigerant R600a + R1150 + R50 at Low Temperature[J].Journal of Refrigeration, DOI:10.12465/issn.0253-4339.20251111002.
为了探究碳氢混合工质R600a/R1150/R50的制冷性能,基于林德-汉普逊循环制冷原理,搭建实验台进行实验研究,对比分析了三元混合工质的制冷特性。实验结果表明,三元混合工质(R600a/R1150/R50)最佳充注量为161.8 g/26.2 g/2.0 g时,运行稳定后节流温度为-94.6 ℃,箱内环境温度为-87.1 ℃,制冷量为22 W,COP为0.043。三元混合工质中:随着高温工质(R600a)充注量的增加,回热器性能得到改善使得系统节流温度逐渐下降,排气温度逐渐下降;预冷充分的前提下:当节流前温度未达到R1150对应排气压力下的液化温度时,添加R1150制冷工质可以降低压比,降低节流温度,增加系统制冷工质流量;由于R50制冷工质在常规制冷系统排气压力下液化温度太低,使得添加系统后压比增大,质量流量减小。实验结果对林德-汉普逊循环性能分析以及混合工质充注配比的选择和系统调试方面具有一定的指导意义和参考价值。
To explore the refrigeration performance of the ternary mixed refrigerant R600a/R1150/R50, an experimental setup was established based on the Linde-Hampso cycle refrigeration principle for experimental research, and the refrigeration characteristics of the ternary mixed refrigerant were comparatively analyzed. The experimental results indicate that when the optimal charging amount of the ternary mixed refrigerant (R600a/R1150/R50) is 161.8 g/26.2 g/2.0 g, the throttling temperature after stable operation is -94.6 ℃, the ambient temperature in the box is -87.1 ℃, the cooling capacity is 22 W, and the coefficient of performance (COP) is 0.043. In the ternary mixed working medium, with an increase in the high-temperature working medium (R600a), the performance of the regenerator is improved, and both the throttling temperature of the system and exhaust temperature gradually decrease. Under the premise of sufficient precooling, when the temperature before throttling does not reach the liquefaction temperature under the corresponding exhaust pressure of R1150, the addition of R1150 can reduce the pressure ratio, throttling temperature, and refrigeration flow rate of the system. Because the liquefaction temperature of R50 is too low under the exhaust pressure of a conventional refrigeration system, the pressure ratio increases and the mass flow rate decreases after adding the system. The experimental results have a certain guiding significance and reference value for the performance analysis of the Linde-Hampso cycle and the selection of mixed refrigerant charge ratios and system commissioning.
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