[1] FAN Haibin, ZHAO Panpan, JIA Lei, HUANG Shifang, et al. Performance analysis of R1233zd(E) vapor injection refrigeration system incorporating a flash tank [J]. Journal of Southeast University (English Edition), 2026, 42 (3): 388-396. [doi:10.3969/j.issn.1003-7985.2026.03.011]

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Performance analysis of R1233zd(E) vapor injection refrigeration system incorporating a flash tank()

含闪蒸罐的R1233zd(E)蒸汽注入制冷系统性能分析

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

42

Issue:

2026 3

Page:

388-396

Research Field:

Energy and Power Engineering

Publishing date:

2026-09-06

Info

Title:

Performance analysis of R1233zd(E) vapor injection refrigeration system incorporating a flash tank

含闪蒸罐的R1233zd(E)蒸汽注入制冷系统性能分析

Author(s):

FAN Haibin^1,2, ZHAO Panpan², JIA Lei², HUANG Shifang^1,3, ZHANG Xiaosong^1,3

1.School of Energy and Environment, Southeast University, Nanjing 210096, China
2.Hefei General Machinery Research Institute Co., Ltd., Hefei 230031, China
3.Engineering Research Center of Building Equipment, Energy, and Environment of Ministry of Education, Southeast University, Nanjing 210096, China

樊海彬^1,2, 赵盼盼², 贾磊², 黄世芳^1,3, 张小松^1,3

1.东南大学能源与环境学院, 南京 210096
2.合肥通用机械研究院有限公司, 合肥 230031
3.东南大学低碳型建筑环境设备与系统节能教育部工程研究中心, 南京 210096

Keywords:

R1233zd(E);  flash tank;  vapor injection refrigeration system;  coefficient of performance(COP)

R1233zd(E);  闪蒸罐;  蒸汽注入制冷系统;  性能系数(COP)

PACS:

TB61

DOI:

10.3969/j.issn.1003-7985.2026.03.011

Abstract:

Coupling R1233zd(E) with flash tank vapor injection enhances refrigeration performance and compensates for its inherently low volumetric refrigeration capacity. A thermodynamic mathematical model based on mass and energy conservation was developed for a flash tank vapor injection refrigeration system utilizing R1233zd(E). Key performance parameters, including the coefficient of performance (COP), cooling capacity, and compressor power consumption, were systematically analyzed across an evaporation temperature range of -30 to 5 ℃, a condensation temperature range of 20 to 40 ℃, and a first-stage compression ratio range of 1.1 to 6.5. Furthermore, a fitted equation for the optimal first-stage compression ratio was derived based on operating temperatures. Results indicated that the system COP increased with rising evaporation temperature. In particular, at a fixed condensation temperature of 40 ℃, the COP increased from ~1.86 to 4.53 as the evaporation temperature increased from -30 to 5 ℃. Conversely, the COP decreased with increasing condensation temperature; when the evaporation temperature was maintained at -20 ℃, the COP decreased from ~3.58 to 2.29 as the condensation temperature increased from 20 to 40 ℃. An optimal intermediate pressure existed for maximizing the system COP. The deviation between the values calculated by the derived correlation for the optimal first-stage compression ratio and the theoretical model was predominantly within ±3%. This provided theoretical guidance for operational parameter setting and intelligent control of the system.

将R1233zd(E)与闪蒸罐蒸汽注入技术相结合可以提升制冷性能并弥补其容积制冷量偏低的不足。针对采用R1233zd(E)的闪蒸罐蒸汽注入制冷系统,建立了基于质量与能量守恒的热力学数学模型。当蒸发温度为-30~5 ℃,冷凝温度为20~40 ℃,一级压缩比为1.1~6.5时,系统计算并分析了性能系数(COP)、制冷量及压缩机功耗等参数的变化规律,同时构建了基于运行温度的最佳一级压缩比拟合方程。结果表明,系统COP随蒸发温度升高而增大,当冷凝温度为40 ℃,蒸发温度由-30 ℃升至5 ℃时,COP从约1.86提升至约4.53。COP随冷凝温度升高而降低,当蒸发温度为-20 ℃,冷凝温度由20 ℃升至40 ℃时,COP从约3.58降至约2.29。系统存在最佳中间压力以获得最大COP,推导出的最佳一级压缩比关联式与模型计算值的偏差主要集中在±3%以内,可为系统运行参数设定和智能控制提供理论指导。

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Memo

Memo:

Received: 2025-10-23; Revised: 2025-12-05.
Biographies: FAN Haibin (1980—), male, senior engineer; HUANG Shifang (corresponding author), male, doctor, associate professor, shifang.huang@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China (No.52206005), Anhui Provincial Key Research and Development Project (No.2022f04020001).
Citation: FAN Haibin, ZHAO Panpan, JIA Lei, et al. Performance analysis of R1233zd(E) vapor injection refrigeration system incorporating a flash tank[J]. Journal of Southeast University (English Edition), 2026, 42(3): 388-396. DOI: 10. 3969/j. issn. 1003-7985. 2026. 03. 011.

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