Coeficientes de transferencia de calor experimental para el enfriamiento de licor en intercambiadores de placas//Experimental heat transfer coefficients for the liquor cooling in plate heat exchanger

Authors

  • Enrique Torres‐Tamayo Instituto Superior Minero Metalúrgico. Centro de Estudio de Energía y Tecnología Avanzada de Moa. Holguín.
  • Yoalbys Retirado‐Medianeja Instituto Superior Minero Metalúrgico. Centro de Estudio de Energía y Tecnología Avanzada de Moa. Holguín
  • Ever Góngora‐Leyva Instituto Superior Minero Metalúrgico. Centro de Estudio de Energía y Tecnología Avanzada de Moa. Holguín

Abstract

La pérdida de eficiencia del proceso de enfriamiento del licor amoniacal, mediante el uso de intercambiadores de calor de placas, está asociada a imprecisiones en la estimación de los coeficientes de transferencia de calor y la acumulación de incrustaciones en la superficie de intercambio. El objetivo de la investigación es determinar los coeficientes de transferencia de calor y la influencia de las
incrustaciones en la pérdida de eficiencia de la instalación. Mediante un procedimiento iterativo se estableció la ecuación del número de Nusselt y su relación con el número de Reynolds y Prandtl. Se utilizó un diseño experimental multifactorial. Los resultados predicen el conocimiento de los coeficientes
para el cálculo del número de Nusselt en ambos fluidos. Los valores de los coeficientes del licor amoniacal son inferiores, ello se debe a la presencia de componentes gaseosos. La ecuación obtenida muestra correspondencia con el modelo de Buonapane, el error comparativo es del 3,55 %.

Palabras claves: intercambiador de calor de placas, coeficientes de transferencia de calor, eficiencia térmica.
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Abstract

The loss of efficiency of the ammonia liquor cooling process, by means of the plate heat exchanger, is associated to the incorrect estimate of the heat transfer coefficients and the accumulation of inlays in the exchange surface. The objective of the investigation is to determine the transfer coefficients and the influence of the inlays in the efficiency loss of the installation. By means of an iterative procedure was obtained the Nusselt number equation and the relationship with the Reynolds and Prandtl number, for it was used it a design experimental multifactorial. The results predict the knowledge of the coefficients for
the calculation of the Nusselt number for both fluids. The ammonia liquor coefficients values are inferior, due to the presence of gassy components. The obtained equation shows correspondence with the Buonapane pattern, the comparative error is 3,55 %.

Key words: plate heat exchanger, heat transfer coefficients, thermal efficiency.

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How to Cite

1.
Torres‐Tamayo E, Retirado‐Medianeja Y, Góngora‐Leyva E. Coeficientes de transferencia de calor experimental para el enfriamiento de licor en intercambiadores de placas//Experimental heat transfer coefficients for the liquor cooling in plate heat exchanger. Ing. Mec. [Internet]. 2014 Jan. 2 [cited 2025 Sep. 13];17(1):68-77. Available from: https://ingenieriamecanica.cujae.edu.cu/index.php/revistaim/article/view/479

Issue

Vol. 17 No. 1 (2014): enero-abril

Section

Original article

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