Ejector used in transcritical CO<sub>2</sub> heat pump system

CHEN Qi; LÜ Yujie; TONG Yang; LI Tao; CHEN Guangming; TANG Liming

doi:10.3969/j.issn.0438-1157.2012.z2.031

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Ejector used in transcritical CO₂ heat pump system

更新时间：2025-12-10

- Ejector used in transcritical CO₂ heat pump system
- CIESC Journal Issue S2, Pages: 166-169(2012)
- 作者机构：
  
  浙江大学制冷与低温研究所,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.z2.031
  CLC： B61
- Online First：28 December 2012，
  
  Published：28 December 2012
- 稿件说明：
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CHEN Qi, LÜ Yujie, TONG Yang, et al. Ejector used in transcritical CO₂ heat pump system[J]. CIESC Journal, 2012, (S2): 166-169. DOI: 10.3969/j.issn.0438-1157.2012.z2.031.
DOI：

CHEN Qi, LÜ Yujie, TONG Yang, et al. Ejector used in transcritical CO₂ heat pump system[J]. CIESC Journal, 2012, (S2): 166-169. DOI: 10.3969/j.issn.0438-1157.2012.z2.031. DOI：

摘要

在自行研制的跨临界CO2热泵热水器实验台上

通过调节系统中阀门开度控制喷射器的进出口压力和温度

研究喷射器的流量、喷射系数、压缩比和效率的变化规律。实验结果表明:同时增大工作流体压力和引射流体压力可以提高喷射器的工作性能

减小工作流体压力或者增大引射流体压力可以提高喷射器的工作完善度。高效率喷射器的研制是优化跨临界CO2热泵系统的关键要素。

Abstract

An experimental transcritical CO2 heat pump water heater system was designed

and the measurement and control system for testing was developed.The flow rate

entrainment ratio

compression ratio and efficiency of ejector were investigated.The experimental results showed that:the increase of both primary fluid pressure and entrained fluid pressure can improve the performance of the ejector

the decrease of primary fluid pressure or the increase of entrained fluid pressure can improve the ejector working perfection.Development of high efficient ejector was a critical factor on optimizing transcritical CO2 heat pump system.

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Ejector used in transcritical CO2 heat pump system

DOI：10.3969/j.issn.0438-1157.2012.z2.031

摘要

Abstract

关键词

Keywords

references

Ejector used in transcritical CO₂ heat pump system