新型太阳能辅助喷射器过冷二氧化碳跨临界制冷系统的能量、放能和经济分析t

IF 6 2区 工程技术 Q2 ENERGY & FUELS
Tailan Yin, Qichao Yang, Jiawei Jiang, Zeye Zheng, Yuanyang Zhao, Guangbin Liu, Liansheng Li
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引用次数: 0

摘要

为了进一步提高跨临界二氧化碳制冷循环(基础循环)的性能,提出了一种太阳能辅助喷射器过冷跨临界二氧化碳制冷循环(SESRS)。基础循环利用太阳能辅助喷射器制冷循环进行过冷。该研究基于已建立的模型,对在喷射器循环中使用环保制冷剂 R152a 的 SESRS 进行了能量、放能和经济评估。热力学分析结果表明,SESRS 的性能优于基本循环。在典型工况下,SESRS 的 COPm 比基本循环提高了 22.96%。虽然当过冷度为 5 °C 时,SESRS 的总成本比基本循环高 7.98 %-17.9 %,但 COPm 的提高幅度更大,提高了约 18.34 %-26.22 %。此外,还研究了过冷度和其他参数对系统性能的影响。总之,这项研究证实了 SESRS 系统在制冷和空调领域的应用潜力。考虑到系统的性能和经济性,应进一步对过冷度和排放压力等关键运行参数进行优化分析。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Energy, exergy, and economic analysis of a novel solar-assisted ejector subcooling CO2 transcritical refrigeration systemt
To further enhance the performance of transcritical CO2 refrigeration cycle (base cycle), a solar-assisted ejector subcooling transcritical CO2 refrigeration cycle (SESRS) is proposed. The base cycle is subcooled utilizing a solar-assisted ejector refrigeration cycle. This research performed energy, exergy, and economic evaluations of SESRS utilizing the eco-friendly refrigerant R152a in the ejector cycle based on the established model. The thermodynamic analysis results demonstrate that SESRS outperform the base cycle. At typical working conditions, the COPm of the SESRS demonstrates a 22.96 % increase compared to that of the base cycle. Although the total cost of the SESRS is 7.98 %–17.9 % higher than that of the base cycle when subcooling degree is 5 °C, the enhancement of COPm is larger and is increased by approximately 18.34 %–26.22 %. The impact of subcooling degree and other parameters on system performance are also investigated. Overall, this study confirms the potential of the SESRS system for utilization in the refrigeration and air-conditioning fields. Considering both the system’s performance and economy, further optimized analysis should be done on key operational parameters, such as subcooling degree and discharge pressure.
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来源期刊
Solar Energy
Solar Energy 工程技术-能源与燃料
CiteScore
13.90
自引率
9.00%
发文量
0
审稿时长
47 days
期刊介绍: Solar Energy welcomes manuscripts presenting information not previously published in journals on any aspect of solar energy research, development, application, measurement or policy. The term "solar energy" in this context includes the indirect uses such as wind energy and biomass
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