Experimental study on diffusion absorption refrigeration cycle using low GWP refrigerants

Han Sol Jung, Gahyeong Kim, Yong Tae Kang

Research output: Contribution to journalConference articlepeer-review


Compared to the conventional absorption refrigeration systems, diffusion absorption refrigeration (DAR) system consists of three components of the working fluids: refrigerant, absorbent, and auxiliary gas. In general, the DAR uses ammonia and water as the working fluids. However, ammonia is flammable, explosive, toxic, and d by high pressure gas safety management act. The main objective of this study is to select a low GWP refrigerant, its pair absorbent and auxiliary gas by experimental investigation. During the experiments, types of the refrigerant-absorbent pair, concentration of the refrigerant, pressure, and temperature are considered as the key parameters to obtain the maximum coefficient of performance (COP) and a low evaporation temperature. The optimum conditions for the key parameters were determined by experiments. It was found that R1234ze(E) gave the best COP with the evaporation temperature of -12.2 o C.

Original languageEnglish
Pages (from-to)48-55
Number of pages8
JournalRefrigeration Science and Technology
VolumePart F147651
Publication statusPublished - 2018 Jan 1
Event1st IIR International Conference on the Application of HFO Refrigerants, HFO 2018 - Birmingham, United Kingdom
Duration: 2018 Sept 22018 Sept 5


  • Absorbent
  • Absorption
  • Diffusion Refrigeration
  • Low GWP refrigerant

ASJC Scopus subject areas

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


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