Enhanced thermal management of high-power LED headlights using Water-MWCNT nanofluid and copper porous media
High-power LED (HP-LED) headlights offer excellent performance but suffer from substantial heat generation, which can degrade luminosity and lifespan. This study proposes a compact, actively cooled system combining a mini-channel heat sink with copper porous media (CPM) and a water-MWCNT nanofluid f...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-10-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X2501041X |
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| Summary: | High-power LED (HP-LED) headlights offer excellent performance but suffer from substantial heat generation, which can degrade luminosity and lifespan. This study proposes a compact, actively cooled system combining a mini-channel heat sink with copper porous media (CPM) and a water-MWCNT nanofluid for enhanced thermal regulation. Using CFD simulations, the current work investigated the effects of Reynolds number (Re) and CPM porosity (ε) on junction temperature (Tj), relative luminous flux (ϕ), and HP-LED lifespan (L70). Results show that increasing Re from 50 to 300 reduces Tj by up to 37.7 °C and boosts ϕA and L70 by 22 % and 27.4 %, respectively. Decreasing ε from 0.98 to 0.90 yields a Tj drop of 23.3 °C. The proposed design offers a promising path for advanced HP-LED cooling with practical design implications. |
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| ISSN: | 2214-157X |