Obtaining a model for the determination of the average condensation heat transfer coefficient in ACC systems

Yanán Camaraza-Medina, Oscar Miguel Cruz-Fonticiella, Osvaldo Fidel García-Morales

Article ID: 1498
Vol 3, Issue 1, 2020

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Abstract


This work presents the results of the continuity of the research process carried out in the Energy Studies Center belonging to the Faculty of Technical Sciences of the University of Matanzas, which involves the establishment of a dimensionless model to determine the average condensation heat transfer coefficient of Air Coleed Condenser (ACC) systems in straight and inclined tubes. The research consists in obtaining in an analytical way the solution of the differential equation of the velocity profile, considering that condensation is of pellicular type, finally the empirical condition of Roshenow is combined with the theoretical solution to generate a numerical expression that allows obtaining with a 15.2% of deviation in 2,192 tests, a value of the average coefficient of heat transfer by condensation very similar to the one obtained with the use of the most referenced model in the consulted literature, the empirical model of Chato.


Keywords


Roshenow Correction; Heat Transfer Coefficient; Condensation

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DOI: https://doi.org/10.24294/tse.v3i1.1498

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