Experimental study of flash tank injection on a heat pump system with a rotary compressor

Kilsoo Son, Dongwoo Kim, Sungkyung Choi, Bo Gyeom Kim, Yong Chan Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The vapor injection technique has been used in the heat pump system to improve heating performance and reliability. Especially, it has mostly been applied to extremely cold regions with high compression ratios. In this study, vapor injection was employed in a two-stage heat pump system. A flash tank and an inverter-driven single rotary compressor were also equipped in the heat pump system. The effect of vapor injection was investigated between a compressor frequency of 15∼90% and an ambient temperature of -10∼12°C. In addition, the coefficient of performance (COP) was evaluated for each part-load condition based on SCOP(Seasonal Coefficient of Performance). As a result, the heating capacity and COP of the injection cycle was 6∼13% and -1.4∼7% higher than those of the non-injection cycle under each part-load condition.

Original languageEnglish
Title of host publicationACRA 2016 - 8th Asian Conference on Refrigeration and Air-Conditioning
PublisherAsian Conference on Refrigeration and Air Conditioning (ACRA)
Publication statusPublished - 2016
Event8th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2016 - Taipei, Taiwan, Province of China
Duration: 2016 May 152016 May 17

Other

Other8th Asian Conference on Refrigeration and Air-Conditioning, ACRA 2016
CountryTaiwan, Province of China
CityTaipei
Period16/5/1516/5/17

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Mechanical Engineering
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Son, K., Kim, D., Choi, S., Kim, B. G., & Kim, Y. C. (2016). Experimental study of flash tank injection on a heat pump system with a rotary compressor. In ACRA 2016 - 8th Asian Conference on Refrigeration and Air-Conditioning Asian Conference on Refrigeration and Air Conditioning (ACRA).