Experimental Research on Quasi Two-stage Compression Heat Pump with Flash Tank Vapor-injection Using R134a

Chai Yupeng; Ma Guoyuan; Xu Shuxue; Ding Ruochen; Yu Lihua

doi:10.3969/j.issn.0253-4339.2017.02.011

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Experimental Research on Quasi Two-stage Compression Heat Pump with Flash Tank Vapor-injection Using R134a

更新时间：2024-07-18

- Experimental Research on Quasi Two-stage Compression Heat Pump with Flash Tank Vapor-injection Using R134a
- Journal of Refrigeration Vol. 38, Issue 2, (2017)
- 作者机构：
  
  1. 北京工业大学环境与能源工程学院
  2. 中国计量科学研究院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2017.02.011
  CLC：
- Published：2017
- 稿件说明：
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Chai Yupeng, Ma Guoyuan, Xu Shuxue, et al. Experimental Research on Quasi Two-stage Compression Heat Pump with Flash Tank Vapor-injection Using R134a[J]. Journal of refrigeration, 2017, 38(2).
DOI：

Chai Yupeng, Ma Guoyuan, Xu Shuxue, et al. Experimental Research on Quasi Two-stage Compression Heat Pump with Flash Tank Vapor-injection Using R134a[J]. Journal of refrigeration, 2017, 38(2). DOI： 10.3969/j.issn.0253-4339.2017.02.011.

摘要

为增加空气源热泵运行的稳定性及提高其性能系数，本文提出了以R134a为工质的涡旋压缩机闪蒸器补气制冷/热泵系统。搭建了实验台对压缩机排气温度、功耗、制冷量、制热量及制冷、制热性能系数进行研究。结果表明：当冷凝温度为45 ℃，蒸发温度为﹣20~0 ℃时，与采用相同工质的单级系统相比，补气系统的排气温度降低了6.2 ℃，功耗增加1.4%~2.8%，制冷量和制冷COPc分别提高19.8%和17.6%，制热量和制热COPh分别提高15.3%和13.2%。

Abstract

In order to improve the stability and coefficient of performance of the air source heat pump

a scroll compressor refrigeration / heat pump system with flash tank was proposed using R134a

and the experiment platform was built. The compressor’s discharge temperature

power input

cooling capacity

heating capacity

coefficient of performances of the refrigeration/heat pump system were studied. Results showed that

under the condition of condensing temperature 45 ℃ and evaporating temperature from ﹣20 ℃ to 0 ℃

the discharge temperature of the vapor injection system was 6.2 ℃ lower than that of the single stage compression system

power input increased only 1.4% to 2.8%

the cooling capacity and cooling COPc are 19.8% and 17.6% higher than that of the single stage system

the heating capacity and heating COPh are 15.3% and 13.2% higher

respectively.

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