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Two-phase frictional pressure drop in horizontal micro-scale channels: Experimental data analysis and prediction method development.

Author(s) : SEMPERTEGUI-TAPIA D. F., RIBATSKI G.

Type of article: Article, IJR article

Summary

An investigation was conducted on the effects of fluid refrigerant and channel geometry on the frictional pressure drop during two-phase flow inside microchannels. Experimental results for two-phase frictional pressure drop were obtained for the refrigerants R134a, R1234ze(E), R1234yf and R600a in a circular channel and for R134a in square and triangular channels. The experiments were performed for mass velocities from 100 to 1600 kg m-2 s-1, saturation temperatures of 31 and 41 °C, and vapor qualities from 0.05 to 0.95. The experimental data have been analyzed focusing on the effects of the geometry and fluid on the two-phase pressure drop. Then, the data were compared with the most quoted predictive methods from the literature. Based on the broad database obtained, a new method for prediction of the two-phase frictional pressure drop was proposed. The new method provided
accurate predictions of the database, predicting 89% of the results within an error band of ±20%.

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Pages: 143-163

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  • Original title: Two-phase frictional pressure drop in horizontal micro-scale channels: Experimental data analysis and prediction method development.
  • Record ID : 30022341
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 79
  • Publication date: 2017/07
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2017.03.024

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