| 摘要: |
| 本文对5种低GWP制冷剂/[P6,6,6,14][Cl]工质对在单效压缩辅助吸收式系统中的性能进行了研究。研究的制冷剂包括碳氢（HC）制冷剂R290和R600a，氢氟烯烃（HFO）制冷剂R1234yf、R1234ze(E)和R1233zd(E)。使用NRTL模型对5种工质对的气液相平衡数据进行了关联，并验证了压缩辅助系统相比于传统单效系统的性能提升水平，在此基础上分析了发生温度和吸收温度对于5种工质对的COP、?效率及循环倍率的影响。结果表明：在吸收器入口设置压缩机能显著提升系统COP。5种工质对中，R290/[P6,6,6,14][Cl]的性能最优，而R1233zd(E)/[P6,6,6,14][Cl]最差，COP和?效率的最大差值分别可达0.2774和0.224 5。当发生温度提升时，5种工质对的COP和?效率均存在峰值，而循环倍率均不断降低。当吸收温度提升时，5种工质对的COP和?效率均不断降低，而循环倍率均不断升高。 |
| 关键词: 制冷剂 离子液体 吸收式制冷 性能分析 |
| DOI： |
| 投稿时间：2022-03-24 修订日期：2022-05-06
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| 基金项目:国家自然科学基金（No. 51936009）资助项目。 |
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| Performance Analysis of Compression-assisted Absorption Refrigeration Cycles Using Low GWP Refrigerant/[P6,6,6,14][Cl] Working Pairs |
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Jia Xiucan, Lu Cheng, Wang Xiaopo, He Maogang
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| (Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University) |
| Abstract: |
| This study investigates the performances of five low GWP (Global Warming Potential) refrigerant/[P6,6,6,14][Cl] working pairs in the compression-assisted single-effect absorption system. The studied refrigerants include hydrocarbon (HC) R290 and R600a, hydrofluoro-olefin (HFO) R1234yf, R1234ze(E), and R1233zd(E). The NRTL model was utilized to correlate the vapor-liquid equilibrium data of five working pairs, and the performance improvement of the compression-assisted absorption system was verified against the traditional single-effect absorption system. Based on this, the effects of the generation and absorption temperatures on COP, exergy efficiency, and circulation ratio of five working pairs were analyzed. The results show that the implementation of a compressor in front of the absorber may significantly increase the COP of the system. Of the five working pairs, R290/[P6,6,6,14][Cl] exhibited the best performance; while R1233zd(E)/[P6,6,6,14][Cl] had the worst performance, and the maximum differences in the COP and exergic efficiency were 0.277 4 and 0.224 5, respectively. As the generation temperature increased, the COP and exergy efficiency of all working pairs had maximum values, whereas the circulation ratios decreased monotonically. As the absorption temperature increased, the COP and exergy efficiency of all working pairs decreased, whereas the circulation ratios increased. |
| Key words: refrigerant ionic liquid absorption refrigeration performance analysis |
