Share

IIR document

Experimental investigation on flow of R-600a inside a diabatic helically coiled capillary tube: Concentric configuration.

Author(s) : DUBBA S. K., KUMAR R.

Type of article: Article, IJR article

Summary

This paper presents an experimental study of a diabatic flow of R-600a through a concentric configured helically coiled capillary tube suction line heat exchanger. The details of experimental facility for testing the diabatic capillary tube with different inlet sub-cooling degree and pressure are discussed. The effect of coil diameter, capillary length, capillary tube diameter, sub-cooling degree and inlet pressure on mass flow rate are presented. The degree of sub-cooling at the inlet of both straight and helical capillary tube is varied from 3–20?°C. In case of diabatic flow, the coiling reduces the mass flow rate of R-600a by 3–12 percent as compared to straight capillary tube. The refrigerant mass flow rate is scattered up with rise of pressure. A semi empirical correlation to predict the mass flow rate of R-600a flowing through a diabatic helical coiled capillary tube is proposed for sub-cooled inlet conditions. The proposed correlation predicts measured data with an error band of?±?20 percent.

Available documents

Format PDF

Pages: 186-195

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 investigation on flow of R-600a inside a diabatic helically coiled capillary tube: Concentric configuration.
  • Record ID : 30023141
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 86
  • Publication date: 2018/02
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2017.10.035

Links


See other articles in this issue (42)
See the source

Indexing