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Prediction of convective boiling characteristics of alternatives to R502 inside air-refrigerant enhanced surface tubing.

Author(s) : SAMI S. M., DESJARDINS D. E.

Type of article: Article

Summary

In this paper, an experimental study on the heat transfer characteristics of two-phase flow boiling of alternative azeotropic refrigerant mixtures to R502 on air/refrigerant horizontal enhanced surface tubing is presented. Correlations were proposed to predict the heat transfer characteristics such as average heat transfer coefficients, as well as pressure drops of alternatives to R502 such as R507, R404A, R407B, and R408A in two-phase flow boiling inside enhanced surface tubing. In addition, it was found that the refrigerant mixture's pressure drop is a weak function of the mixture's composition.

Details

Original title: Prediction of convective boiling characteristics of alternatives to R502 inside air-refrigerant enhanced surface tubing.
Record ID : 2001-0703
Languages: English
Source: Applied Thermal Engineering - vol. 20 - n. 6
Publication date: 2000/04

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Indexing

Themes: Mass transfer;
Blends
Keywords: Horizontal tube; Heat transfer coefficient; Extended surface; Measurement; Heat transfer; R507; R408a; R407b; R404A; Azeotropic mixture; Refrigerant; Boiling; Pressure drop