ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels 2015
DOI: 10.1115/icnmm2015-48263
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Single Phase and Two Phase Flow Characteristics and Heat Transfer in Micro-Fin Tubes

Abstract: An experimental investigation was performed with R22 and R410a for single-phase flow, evaporation and condensation inside five micro-fin tubes of various geometries to obtain pressure drop and heat transfer characteristics. The results suggest single-phase flow heat transfer coefficients are increased by 46% to 64% compared with smooth tubes values. Tube geometries that had higher evaporation heat transfer coefficients or higher condensation heat transfer coefficients were identified. Condensation pressure dro… Show more

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