Dimensional analysis applied to jacketed shell and tube heat exchangers modeling

Authors

DOI:

https://doi.org/10.29019/enfoqueute.745

Keywords:

Buckingham Pi-theorem, heat transfer, hydrogen sulphide, modeling, simulation

Abstract

Dimensional analysis was utilized on this research to establish a shortcut model for predicting hydrogen sulphide gas discharge temperature in jacketed shell and tube heat exchangers. Since the equipment belongs to an online industrial facility, the passive experimental method was applied. Selection of the heat transfer process parameters was followed by application of the Buckingham Pi-theorem and the repeating-variables technique. After formulation of the dimensionless groups, approximation of the explicit model equation was carried out through a least-squares multivariate linear regression. The model predictive ability performance was appraised by comparing predictions versus measured discharge temperatures, hence attaining a Pearson correlation of
97.5 %, a mean absolute error of 2.1 K, and 1.7 % maximum deviations. The explicit equation that was obtained is pertinent to studied heat exchangers, when 0.55 ≤ ṁ1 ≤ 0.60, 1.06 ≤ ṁ2 ≤ 1.09, and 0.22 ≤ ṁ3 ≤ 0.24 (fluids flowrate, kg/s). It can be used as an alternative calculation method for quick anticipation of the equipment performance, which overcomes computation of the overall heat transfer coefficients.

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Author Biography

Andres Adrian Sánchez-Escalona, Universidad de Moa

Nació en Cuba en 1978. Graduado de Ingeniero Mecánico (2002) en la Universidad de Holguín, y Máster en Electromecánica (2017) en el Instituto Superior Minero Metalúrgico de Moa, Cuba. Actualmente trabaja como Subdirector de Ingeniería en Moa Nickel S.A., empresa mixta de minería y procesamiento primario de níquel y cobalto. Tiene más de 16 años de experiencia en administración de proyectos y prestación de servicios de ingeniería para plantas de procesos químicos. También trabajó como supervisor del Departamento de Ingeniería Mecánica durante 10 años. Su línea de investigación está orientada a intercambiadores de calor de tubos y coraza enchaquetados y transferencia de calor por convección, con flujos monofásicos. Los estudios precedentes incluyen la aplicación de métodos convencionales, modelación matemática, así como el uso de herramientas de inteligencia artificial como las Redes Neuronales Artificiales y Algoritmos Genéticos. Actualmente es estudiante del Programa de Doctorado de la Universidad de Moa "Dr. Antonio Núñez Jiménez".

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Published

2021-07-01

How to Cite

Sánchez-Escalona, A. A., Camaraza-Medina, Y., Retirado-Mediaceja, Y., Góngora-Leyva, E., & Vega-Almaguer, M. (2021). Dimensional analysis applied to jacketed shell and tube heat exchangers modeling. Enfoque UTE, 12(3), pp. 36 - 50. https://doi.org/10.29019/enfoqueute.745

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Miscellaneous