Share

IIR document

Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system.

Author(s) : LLOPIS R., SÁNCHEZ D., CABELLO R., et al.

Type of article: Article, IJR article

Summary

This work presents the experimental evaluation of R-513A (GWP?=?573) and R-450A (GWP?=?547) as R-134a (GWP?=?1301) drop-in replacements and as R-507A (GWP?=?3987) retrofits in a commercial direct expansion refrigeration system for medium temperature applications (2?°C). The evaluation covered 24-hour tests using a single-stage cycle with semi-hermetic compressor, an electronic expansion valve customized for each refrigerant and a commercial vertical cabinet with doors placed inside a climatic chamber. The tests were performed at three water dissipation temperatures (23.3, 32.8 and 43.6?°C). Experimental results indicate that R-513A and R-450A can operate with R-134a plants, with increments in energy consumption between -1.6 to +1.2% for R-513A and from +1.3 to +6.8% for R-450A, whereas in comparison with R-507A, R-513A offered reductions in energy consumption between 4.4 to 8.2% and R-450A between 0 to 3.3%. The paper analyzes the modification of the operating pressures/temperatures and the energy indicators using the four refrigerants.

Available documents

Format PDF

Pages: 52-66

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Experimental analysis of R-450A and R-513A as replacements of R-134a and R-507A in a medium temperature commercial refrigeration system.
  • Record ID : 30022521
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 84
  • Publication date: 2017/12
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2017.08.022

Links


See other articles in this issue (26)
See the source

Indexing