带喷射器的跨临界CO<sub>2</sub>系统在大型冷库中的应用

赖坤; 田健

doi:10.12465/j.issn.0253-4339.2025.02.162

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带喷射器的跨临界CO₂系统在大型冷库中的应用

更新时间：2025-04-15

- 带喷射器的跨临界CO₂系统在大型冷库中的应用
- Application of Transcritical CO₂ System with Ejector in Large Cold Store
- 制冷学报 2025年46卷第2期页码：162-170
- 作者机构：
  
  青岛海尔开利冷冻设备有限公司　青岛　 266500
- 作者简介：
  
  田健，男，博士，青岛海尔开利冷冻设备有限公司，15800762296，E-mail：jian.tian@carrier.com。研究方向：制冷及设备，节能技术。
- 基金信息：
- DOI：10.12465/j.issn.0253-4339.2025.02.162
  中图分类号： TB61⁺1;TB61⁺7;TB69
- 收稿日期：2024-03-06，
  
  修回日期：2024-04-24，
  
  录用日期：2024-05-22，
  
  纸质出版日期：2025-04-16
- 稿件说明：
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赖坤, 田健. 带喷射器的跨临界CO₂系统在大型冷库中的应用[J]. 制冷学报, 2025,46(2):162-170.

Lai Kun, Tian Jian. Application of Transcritical CO₂ System with Ejector in Large Cold Store[J]. Journal of refrigeration, 2025, 46(2): 162-170.
赖坤, 田健. 带喷射器的跨临界CO₂系统在大型冷库中的应用[J]. 制冷学报, 2025,46(2):162-170. DOI： 10.12465/j.issn.0253-4339.2025.02.162.

Lai Kun, Tian Jian. Application of Transcritical CO₂ System with Ejector in Large Cold Store[J]. Journal of refrigeration, 2025, 46(2): 162-170. DOI： 10.12465/j.issn.0253-4339.2025.02.162.

摘要

大型冷库在经济发展中具有重要作用，其能耗和环境影响巨大。为了推动冷库的绿色低碳高效发展，主要以制冷剂替代和制冷系统优化为出发点，研究带喷射器的跨临界CO

系统在大型冷库中的应用。基于大型冷库的应用场景，综合考虑不同温区的负荷需求以及不同的气象条件，通过全年逐时能耗分析，获得了带喷射器跨临界CO

系统在特定运行条件下的性能表现和能耗特性。集成了特定优化设计喷射器的CO

跨临界系统，对低温冷库（-32 ℃）、中温冷库（-8 ℃）和高温冷库（0 ℃）的大型冷库，在所有4个城市中的系统COP均优于R507A系统，但要在寒冷气候区域才能对R717系统显示出性能优势，在低温、中温和高温冷库中系统COP最高值分别为2.45、4.86、5.98；考虑系统全年能耗，在北京CO

跨临界系统应用于低温、中温和高温冷库，相对于R507A系统分别可实现7.9%、10.1%和10.5%的节能效果，R717系统用于低温冷库的节能率略高于CO

系统；但对中高温冷库，CO

系统的优势更加明显；不同气候区域对CO

跨临界系统的能耗分布也有影响，CO

系统在寒冷气候区域的节能效率可达9.3%，优于R717系统；而在炎热气候区域，其节能效率降至2.

8%，略低于R717，因此，合理选用温区和气候区域，CO

跨临界系统的整体运行效率和节能性能可优于R717系统。对比分析了带喷射器跨临界CO

系统的能耗分布规律，指出其在不同应用场景下的适用性，为该系统的推广应用提供了重要参考，对实现“双碳”目标具有重要意义。

Abstract

Large cold storage systems play a significant role in economic development with substantial energy consumption and environmental impacts. To promote the green

low-carbon

and efficient development of cold storage

this study mainly focuses on refrigerant substitution

refrigeration system optimization

and the application of transcritical CO

systems with ejectors in large cold storage systems. The performance and energy consumption characteristics of different refrigeration systems were compared through a comprehensive annual hourly energy consumption analysis based on the cold storage demands at different temperatures and under various climatic conditions. The results show that the COPs of a transcritical CO

system integrated with specifically optimized ejectors are higher than that of the R507A system in all four cities for low-temperature (-32 ℃)

medium-temperature (-8 ℃)

and high-temperature (0 ℃) cold storages. However

it exhibited performance advantages over the R717 system only in cold climate zones

with the highest system COPs of 2.45

4.86

and 5.98 for low

medium

and high-temperature cold storages

respectively. Considering the system′s annual energy consumption

the application of CO

transcritical systems in low

medium

and high-temperature cold storages in Beijing achieved energy savings of 7.9%

10.1%

and 10.5%

respectively

compared to the R507A system. The energy savings of the R717 system were slightly higher than that of the CO

system in low-temperature cold storage

but the CO

system had more obvious advantages in medium- and high-temperature cold storage. The energy consumption of the CO

transcritical system also varied across climate zones. In the cold climate zone

the energy savings reach

ed 9.3%

outperforming the R717 system

while in the hot climate zone

its energy savings dropped to 2.8%

slightly lower than that of R717. With the appropriate selection of temperature range and climate zone

the overall operational efficiency and energy-saving performance of the transcritical CO

system can surpass those of the R717 system. This study conducted a comprehensive analysis of the operational performance and energy consumption distribution characteristics of the CO

system and highlighted its applicability in different scenarios

providing important references for promoting and applying the system

which is crucial for achieving dual carbon goals.

关键词

Keywords

references

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DOI：10.12465/j.issn.0253-4339.2025.02.162

摘要

Abstract

关键词

Keywords

references

带喷射器的跨临界CO₂系统在大型冷库中的应用

Application of Transcritical CO₂ System with Ejector in Large Cold Store