Thermal performance improvement based on the partial heating position of a heat sink
| Autor: | Dong Rip Kim, Seung Jae Park, Kwan-Soo Lee, Youngchan Yoon |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
Fluid Flow and Transfer Processes Materials science 020209 energy Mechanical Engineering Thermal resistance fungi Base (geometry) 02 engineering and technology Mechanics Heat sink 021001 nanoscience & nanotechnology Condensed Matter Physics Forced convection Thermal conductivity Position (vector) Heat transfer Thermal 0202 electrical engineering electronic engineering information engineering 0210 nano-technology human activities |
| Zdroj: | International Journal of Heat and Mass Transfer. 124:752-760 |
| ISSN: | 0017-9310 |
| Popis: | The thermal performance of a heat sink is analyzed according to the position of the partially heated surface. Numerical models for simulating forced convection were used to analyze the heat transfer between the heat sink and ambient air. The optimal partial heating position was discussed in terms of the effects of total heat transfer rate, air velocity, the ratio of total heat sink length to partially heated surface width, the thermal conductivity of the heat sink, and the thickness of the heat sink base. Finally, a correlation was suggested to determine the partial heating position that maximizes thermal performance by using the experimental design method. It was thus possible to reduce the thermal resistance of the heat sink by up to approximately 30% by finding the optimal partial heating position. |
| Databáze: | OpenAIRE |
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