Thermal Analysis of a Magnetic Brake Using Infrared Techniques and 3D Cell Method with a New Convective Constitutive Matrix

José Miguel Monzón-Verona; Pablo Ignacio González-Domínguez; Santiago García-Alonso; Francisco Jorge Santana-Martín; Juan Francisco Cárdenes-Martín

doi:10.3390/s19092028

Thermal Analysis of a Magnetic Brake Using Infrared Techniques and 3D Cell Method with a New Convective Constitutive Matrix

Sensors (Basel). 2019 Apr 30;19(9):2028. doi: 10.3390/s19092028.

Authors

José Miguel Monzón-Verona^{1

2}, Pablo Ignacio González-Domínguez^{3

4}, Santiago García-Alonso⁵, Francisco Jorge Santana-Martín^{6

7}, Juan Francisco Cárdenes-Martín⁸

Affiliations

¹ Electrical Engineering Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. josemiguel.monzon@ulpgc.es.
² Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. josemiguel.monzon@ulpgc.es.
³ Electrical Engineering Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. pablo.gonzalez@ulpgc.es.
⁴ Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. pablo.gonzalez@ulpgc.es.
⁵ Department of Electronic Engineering and Automatics (DIEA), University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. santiago.garciaalonso@ulpgc.es.
⁶ Electrical Engineering Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. fjorge.sanmar@gmail.com.
⁷ Institute for Applied Microelectronics, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. fjorge.sanmar@gmail.com.
⁸ Mechanical Engineering Department, University of Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain. juanfrancisco.cardenes@ulpgc.es.

Abstract

In this work we analyse the temperature distribution in a conductor disk in transitory regime. The disk is in motion in a stationary magnetic field generated by a permanent magnet and so, the electric currents induced inside it generate heat. The system acts as a magnetic brake and is analysed using infrared sensor techniques. In addition, for the simulation and analysis of the magnetic brake, a new thermal convective matrix for the 3D Cell Method (CM) is proposed. The results of the simulation have been verified by comparing the numerical results with those obtained by the Finite Element Method (FEM) and with experimental data obtained by infrared technology. The difference between the experimental results obtained by infrared sensors and those obtained in the simulations is less than 0.0459%.

Keywords: Cell Method; infrared sensors; magnetic brake; thermography.