Optimization of micro pin-fin heat sink with staggered arrangement
| Autor: | Rajesh Kumar, Kozhikkatil Sunil Arjun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Pressure drop
Nanotube Materials science Fin Renewable Energy Sustainability and the Environment electronic cooling 020209 energy lcsh:Mechanical engineering and machinery Reynolds number 02 engineering and technology Heat sink mini channels symbols.namesake Nanofluid Heat transfer pin-fin 0202 electrical engineering electronic engineering information engineering Fluent symbols nanofluid lcsh:TJ1-1570 Composite material carbon nanotube CFD |
| Zdroj: | Thermal Science, Vol 22, Iss 6 Part B, Pp 2919-2931 (2018) |
| ISSN: | 2334-7163 0354-9836 |
| Popis: | The effect of the pin-fin shapes on the overall performance of the carbon nanotube bundles as porous micro pin-fins with in-line and staggered arrangement for the heat transfer and pressure drop is studied using FLUENT 15.0. The results of the study revealed that at 100 < Re < 2000, triangle has the best performance followed by square, rectangle, hexagon and circle in 1 mm height, 15 mm width, and 45 mm length silicon rectangular mini-channel. The staggered configuration gave better heat transfer performance than in-line arrangement at all Reynolds numbers for all shapes with up to 19% thermal improvement but with up to 79% pressure drop differential. On a mini-channel surface with nanotube fins, the nanofluid (0.001 to 1%) increases the thermal performance up to 40% in comparison with water. The best thermal performance enhancement of 106% was obtained by using staggered triangular fins with larger fin height of 0.75 mm, smaller fin width of 0.5 mm, and spacing double the fin width and 0.01% CuO-water nanofluid followed by 103% with 0.01% Al2O3-water in comparison to channels with inline circular fins and water. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|