Publication detail
Liquid cooling of LED car headlamps using polymeric hollow fibers
MRÁZ, K. KROULÍKOVÁ, T. RESL, O.
English title
Liquid cooling of LED car headlamps using polymeric hollow fibers
Type
conference paper
Language
en
Original abstract
Thermal management of high-power Light Emitting Diodes (LED) car headlamp is important because high temperatures decrease life span of LEDs significantly. Polymeric hollow fibers of a small diameter (approx. 1 mm) were used to create a compact liquid cooling systems of LED car headlights. The cooling performance of liquid cooling system installed on the headlight Printed Circuit Board (PCB) of Skoda Octavia and Skoda Enyaq was tested. Results of the testing show that the proposed plastic radiators ensure efficient and uniform cooling of the PCBs and keep the LEDs operation temperature much below the recommended 110°C. As the heat generation is relatively small for liquid cooling (tens of watts), there is only 3-10 l/hour flow rate of coolant needed, allowing to operate the plastic radiator with low velocity and pressure drops (below 1kPa).
English abstract
Thermal management of high-power Light Emitting Diodes (LED) car headlamp is important because high temperatures decrease life span of LEDs significantly. Polymeric hollow fibers of a small diameter (approx. 1 mm) were used to create a compact liquid cooling systems of LED car headlights. The cooling performance of liquid cooling system installed on the headlight Printed Circuit Board (PCB) of Skoda Octavia and Skoda Enyaq was tested. Results of the testing show that the proposed plastic radiators ensure efficient and uniform cooling of the PCBs and keep the LEDs operation temperature much below the recommended 110°C. As the heat generation is relatively small for liquid cooling (tens of watts), there is only 3-10 l/hour flow rate of coolant needed, allowing to operate the plastic radiator with low velocity and pressure drops (below 1kPa).
Keywords in English
Polymeric heat exchanger, Automotive headlights, LED cooling, Hollow fibers, Liquid cooling system
Released
09.05.2022
Publisher
Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences
Location
Prague
ISBN
978-80-86246-48-2
Book
ENGINEERING MECHANICS 2022, 27/28th INTERNATIONAL CONFERENCE, May 9 – 12, 2022, Milovy, Czech Republic
Pages from–to
265–268
Pages count
4
BIBTEX
@inproceedings{BUT177959,
author="Kryštof {Mráz} and Tereza {Kroulíková} and Ondřej {Resl},
title="Liquid cooling of LED car headlamps using polymeric hollow fibers",
booktitle="ENGINEERING MECHANICS 2022, 27/28th INTERNATIONAL CONFERENCE, May 9 – 12, 2022, Milovy, Czech Republic",
year="2022",
month="May",
pages="265--268",
publisher="Institute of Theoretical and Applied Mechanics of the Cech Academy of Sciences",
address="Prague",
isbn="978-80-86246-48-2"
}