Performance Comparison of Three Booster-Assisted Ejector Refrigeration Cycles with Environmentally Friendly Refrigerants

Zou Lingeng; Liu Jiarui; Liu Ye; Yu Jianlin

doi:10.12465/issn.0253-4339.20250509001

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Performance Comparison of Three Booster-Assisted Ejector Refrigeration Cycles with Environmentally Friendly Refrigerants

更新时间：2026-08-06

- Performance Comparison of Three Booster-Assisted Ejector Refrigeration Cycles with Environmentally Friendly Refrigerants
- Journal of Refrigeration Vol. 47, Issue 4, Pages: 106-112(2026)
- 作者机构：
  
  1.西安交通大学制冷与低温工程系西安 710049
  2. 浙大宁波理工学院能源与环境工程研究所宁波 315100
  3. 西安交通大学深低温技术与装备教育部重点实验室西安 710049
  4. 陕西赛默新能科技有限公司西安 710049
- 作者简介：
- 基金信息：
  
  the National Natural Science Foundation of China(52176019)
- DOI：10.12465/issn.0253-4339.20250509001
  CLC： TB61⁺2;TB61⁺7
- CSTR：XXXXX.XX.XXX.20250509001
- Received：09 May 2025，
  
  Revised：2025-06-04，
  
  Accepted：10 July 2025，
  
  Published：16 August 2026
- 稿件说明：
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邹霖庚,刘嘉瑞,刘晔等.采用环保制冷剂的三种增压辅助喷射制冷循环性能对比[J].制冷学报,2026,47(04):106-112.

Zou Lingeng,Liu Jiarui,Liu Ye,et al.Performance Comparison of Three Booster-Assisted Ejector Refrigeration Cycles with Environmentally Friendly Refrigerants[J].Journal of Refrigeration,2026,47(04):106-112.
邹霖庚,刘嘉瑞,刘晔等.采用环保制冷剂的三种增压辅助喷射制冷循环性能对比[J].制冷学报,2026,47(04):106-112. DOI： 10.12465/issn.0253-4339.20250509001. CSTR： XXXXX.XX.XXX.20250509001.

Zou Lingeng,Liu Jiarui,Liu Ye,et al.Performance Comparison of Three Booster-Assisted Ejector Refrigeration Cycles with Environmentally Friendly Refrigerants[J].Journal of Refrigeration,2026,47(04):106-112. DOI： 10.12465/issn.0253-4339.20250509001. CSTR： XXXXX.XX.XXX.20250509001.

摘要

本文针对喷射制冷循环（ERC）能效低、高温工况性能衰减显著的问题，提出一种新的带有气液分离器的增压辅助喷射制冷循环，该循环蒸发器的单位制冷量大，所需的发生器供热量小。基于热力学方法将该循环与已有的2种增压辅助喷射制冷循环进行了对比分析，并系统评估了4种环保制冷剂的适用性。研究表明：改进循环通过气液分离降低蒸发器入口干度，在典型工况（发生温度为80 ℃、冷凝温度为35 ℃、蒸发温度为0 ℃）下COP达1.198，较传统循环性能具有显著提升。R1234ze（Z）因兼具低GWP与最优热力性能，成为最适配制冷剂。参数敏感性分析表明：改进循环的COP随冷凝温度的升高而上升（冷凝温度从30 ℃升至40 ℃时COP从1.168增至1.232），而传统循环则呈现下降趋势；当发生温度从70 ℃升至90 ℃时，改进循环的COP下降28.6%，但其制冷量仍保持高于传统循环。研究结果为低品位热驱动制冷技术的能效提升与环保制冷剂应用提供了理论依据。

Abstract

To address the low energy efficiency and significant performance reduction under high-temperature conditions of ejector refrigeration cycles （ERCs）， this study proposed a novel booster-assisted ejector refrigeration cycle integrated with a vapor-liquid separator that exhibited a higher unit refrigeration capacity and reduced generator heat input. A thermodynamic analysis was conducted to compare the proposed cycle with two existing booster-assisted ejector refrigeration cycles， and the applicability of four environmentally friendly refrigerants was systematically evaluated. The results demonstrated that the improved cycle enhanced the performance by reducing the evaporator inlet vapor quality through vapor-liquid separation. Under typical operating conditions （generation temperature： 80 ℃， condensation temperature： 35 ℃， and evaporation temperature： 0 ℃）， the proposed cycle achieved a coefficient of performance （COP） of 1.198， showing significant improvement over conventional cycles. R1234ze（Z） was identified as the optimal refrigerant because of its low Global Warming Potential （GWP） value and superior thermodynamic properties. A parameter sensitivity analysis revealed that the COP of the improved cycle increased with rising condensation temperature （from 1.168 at 30 ℃ to 1.232 at 40 ℃）， whereas conventional cycles exhibited an opposite trend. When the generation temperature increased from 70 ℃ to 90 ℃， the COP of the improved cycle decreased by 28.6%； however， its refrigeration capacity remained higher than that of conventional cycles. This study provided a theoretical foundation for enhancing the energy efficiency of low-grade heat-driven refrigeration technologies and promoting the application of eco-friendly refrigerants.

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