Thermal Management of Led Luminaires Based on Computational Fluid Dynamic

Odirlan Iaronka; Vitor Cristiano Bender; Tiago Bandeira Marchesan

doi:10.18618/REP.2015.1.076084

Authors

Odirlan Iaronka Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil
Vitor Cristiano Bender Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil e-mail: odirlan.ufsm@gmail.com
Tiago Bandeira Marchesan Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil e-mail: odirlan.ufsm@gmail.com

DOI:

https://doi.org/10.18618/REP.2015.1.076084

Keywords:

Computational Fluid Dynamic, Cooling System, Finite-Volume Method, Light Emitting Diode, Street Lighting, Thermal Management

Abstract

Large LED (light-emitting diodes) clusters are currently designed to replace the lamps commonly used in parks, roadways, tunnels and street lighting. However, the success of these designs is heavily dependent on the performance of the thermal management. Thermal performance affects light extraction, reliability and lifetime of LED lamp. This paper proposes thermal management solutions to improve the design of LED luminaires. These solutions include natural convection and forced air convection into a closed cooling loop. The LED driver influence on luminaire heating is also evaluated in this paper. Simulations employing Finite-Volume Method (FVM) and Computational Fluid Dynamics (CFD) have been done to analyze the system’s performance and to propose improvements in the airflow design. Comparisons of the experimental and simulation results are presented for validation purposes.

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Author Biographies

Odirlan Iaronka, Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil

was born in Casca, Brazil, in 1990. He received the B.S. degree in Electrical Engineering in 2014, in Federal University of Santa Maria (UFSM). In the period of 2009 to 2014 was a researcher in Electronic Ballast Research Group (GEDRE - UFSM). Currently working in the company WEG Electric Equipment, in the Development, Research and Innovation sector. His research interests include Numerical Simulations, Finite Element Method (FEM), Computational Fluids Dynamics (CFD), Thermal Management, LEDs, Power Electrical Transformers and Electromagnetism.

Vitor Cristiano Bender, Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil e-mail: odirlan.ufsm@gmail.com

was born in Panambi, Brazil in 1987. He received the B.S. degree in Electrical Engineering from the Regional University of the Northwest of Rio Grande do Sul in 2011 and Master Degree from Federal University of Santa Maria (UFSM) in 2012, is currently student in the Doctoral Course in (UFSM) working with Electronic Ballast Research Group (GEDRE). His research interests include lighting systems, light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), drivers for LEDs and OLEDs, thermal management and finite element analysis.

Tiago Bandeira Marchesan, Electronic Ballast Research Group (GEDRE) – Federal University of Santa Maria (UFSM) Santa Maria – RS, Brazil e-mail: odirlan.ufsm@gmail.com

was born in Santa Maria, Brazil, in 1980. He received the B.S (with first-class honors) and Ph.D. degrees in electrical engineering from the Federal University of Santa Maria (UFSM), in 2003 and 2008, respectively. Since 2000, he has been a Researcher with the Electronic Ballast Research Group (GEDRE). Since 2011, he has been a Full Professor with the UFSM. His research interests include electronic ballasts, HID lamps, LEDs, dimming systems, and modeling and simulation of power converters.

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