Summary

This work presents an experimental research effort on HCFC-22 flow through adiabatic capillary tube for commercial applications. An experimental apparatus was developed and used to generate a statistically based matrix of experimental data, which was then used to develop empirical correlations to estimate the refrigerant mass flow rate as a function of the operating and capillary tube geometric conditions. The experiments were planed following a combined two and three levels factorial design. The empirical correlations were derived using two different techniques: polynomial regression and dimensionless groups. Comparisons with an experimental work available in the literature and also with the CAPILAR program were also performed and discussed.

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