Thermodynamic and economic analysis of a novel solar-assisted vapor injection ejector-enhanced cycle for building heating

IF 3.5 2区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Refrigeration-revue Internationale Du Froid Pub Date : 2024-11-08 DOI:10.1016/j.ijrefrig.2024.11.005

Youcai Liang, Zhengyong Li, Yan Zhu, Meirong Dong, Jidong Lu

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引用次数: 0

Abstract

This research proposes a novel solar-assisted vapor injection ejector-enhanced cycle (SVI-EEC). The energy, exergy, and exergo-economic modelings of SVI-EEC are conducted in this study and compared with the modified solar-assisted vapor injection ejector-enhanced cycle (SE-MVIC) and the flash tank vapor injection cycle (FVIC). In addition, the performance of several low-GWP refrigerant mixtures (R13I1/R152a,R13I1/R161 and R13I1/R32), is investigated to advance the replacement of HFC refrigerants.The simulation results show that for the same compressor inlet mass flow, the

C O P_{h}

of SVI-EEC is improved by 6.9% and 29.7% compared to SE-MVIC and FVIC, respectively. The

C O P_{h}

and

Q_{c o n}

of R13I1/R152a at optimum injection pressure increased by 1.94% and 5.49%, respectively, compared to R134a. In summary, the proposed SVI-EEC system has excellence in performance and application potential, while R13I1/R152a has the potential to replace R134a.

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用于建筑供暖的新型太阳能辅助蒸汽喷射器强化循环的热力学和经济分析

本研究提出了一种新型太阳能辅助喷气增焓循环（SVI-EEC）。本研究对 SVI-EEC 进行了能量、放能和排气经济建模，并将其与改进型太阳能辅助喷气增焓循环（SE-MVIC）和闪蒸罐喷气循环（FVIC）进行了比较。模拟结果表明，在相同的压缩机入口质量流量下，SVI-EEC 的 COPh 比 SE-MVIC 和 FVIC 分别提高了 6.9% 和 29.7%。与 R134a 相比，R13I1/R152a 在最佳喷射压力下的 COPh 和 Qcon 分别提高了 1.94% 和 5.49%。总之，拟议的 SVI-EEC 系统具有卓越的性能和应用潜力，而 R13I1/R152a 则具有替代 R134a 的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Refrigeration-revue Internationale Du Froid 工程技术-工程：机械

CiteScore

7.30

自引率

12.80%

发文量

363

审稿时长

3.7 months

期刊介绍： The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.