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research-article

An Ohmic Heating Model Based on the Thermal Circuit Method, Case of Study for Parameter Determination

[+] Author and Article Information
Gerardo M. Chávez-Campos

Av Tecnologico 1500 Col. Santiaguito Morelia, GR 58120 Mexico gmarx_cc@itmorelia.edu.mx

Adriana del C. Téllez-Anguiano

Av Tecnológico 1500 Col. Santiaguito Morelia, AG 58120 Mexico adrianat@itmorelia.edu.mx

Juan A. Salazar-Torres

Av. Tecnológico 1500 Col. Lomas de Santiaguito Morelia, 58120 Mexico jast2007@hotmail.com

Hector Javier Vergara-Hernandez

Av Tecnologico 1500 Col. Santiaguito Morelia, AG 58120 Mexico hvergarah@yahoo.com

Octavio Vázquez-Gómez

Av. Tecnológico 1500 Lomas de Santiaguito Morelia, Michoacán, AG 58120 Mexico aanubbis@hotmail.com

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the Journal of Thermal Science and Engineering Applications. Manuscript received May 10, 2018; final manuscript received May 22, 2019; published online xx xx, xxxx. Assoc. Editor: Ayyoub M. Momen.

ASME doi:10.1115/1.4043897 History: Received May 10, 2018; Accepted May 22, 2019

Abstract

Ohmic heating is currently a method with a wide potential as an alternative thermal process in the industry. However, the success of this method depends on the rate of the generated heat by the selected material and its geometry. The heating systems are usually modeled by CFD or FEM. In this paper a model that does not consider the temperature gradients is presented. The proposed model uses electric resistances and capacitances as steady-state and transient parameters. These parameters are calculated using Matlab considering the geometry, as well as the electrical and thermal properties of the material to be heated. The RC circuit is solved by applying the Laplace transform. Finally, the temperature performance of the model and the experimental system are compared.

Copyright © 2019 by ASME
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