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Abstract: A novel efficiency reduction model to tubular heat exchanger based on heat transfer losses by biofilm adhesion is proposed, which included a modified equation based on the real data-dependent time, seawater, hydrodynamics and heat transfer resistance using computational fluid dynamics (CFD). The biofilm growth model based on Verhulst model and experimental data has been obtained and simulated in a CFD software tool to analyze the tubular heat exchanger performance prediction cooled by seawater. The biofilm CFD model with appropriate fit, and the correlation coefficient (R2) values are between 0.97 and 0.99, was validated by experimental data obtained at different flow velocity. The final results of in/outlet difference temperatures were from 3.9 °C to 2.2 °C for different flow velocity with R2 > 0.97. The simulation results demonstrate that the novel CFD model is capable of predicting the efficiency losses during the development period of biofilm growth in in open-loop cooling seawater systems.
Fuente: Biofouling, 2022, 38(7), 663-673
Editorial: Taylor & Francis
Fecha de publicación: 01/08/2022
Nº de páginas: 11
Tipo de publicación: Artículo de Revista
Url de la publicación: https://doi.org/10.1080/08927014.2022.2110493
DAVID SALVADOR SANZ SÁNCHEZ
SERGIO GARCIA GOMEZ
LAURA TRUEBA CASTAÑEDA
ALFREDO TRUEBA RUIZ