Abstract
Comparative investigations were carried out for open and closed microchannel heat sinks for water and SiO2/water nanofluid, varying the Reynolds number from 200 to 800 and modifying the fin height from 0.5 mm to 2.0 mm. As part of its microchannel heat sink performance analysis, the study looked at several variables, including the Nusselt number, pressure drop, and cross-sectional fluid flow pattern and evaluated the optimum fin height. Nano SiO2/water coolant enhances the Nusselt no. indicated that MCHS with 1.5 mm fin height has the most significant heat transfer value of 53.02. In contrast, MCHS with a 2.0 mm fin height has 38.68 using water as coolant. Water and nano SiO2/water coolants had a maximum pressure drop of 187.90 and 286.96 Pa at 2.0 mm in height. The MCHS with 1.0 mm fin height has the maximum TPF of 2.17 and 1.75 for nano Sio2/water and water as a coolant, respectively. TPF was increased by 24.19% and 46.24%, respectively, compared to water as a coolant and a closed microchannel heat sink in the triangular-shaped open MCHS with SiO2/water nanofluid and 1.0 mm of fin height.
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Abbreviations
- \(\rho\) :
-
Density (kg/m3)
- u, v:
-
Velocity component (m/s)
- k:
-
Thermal conductivity (W/m oC)
- \({D}_{h}\) :
-
Hydraulic diameter (m)
- T:
-
Temperature (oC)
- t:
-
Time (s)
- A:
-
Area (m2)
- Cp :
-
Specific heat (kJ/kg K)
- h:
-
Heat transfer coefficient (W/m2 K)
- P:
-
Pressure (Pa)
- q:
-
Heat flux (W/m2)
- Re :
-
Reynolds number
- Nu :
-
Nusselt number
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Mohammed Anees Sheik and Beemkumar N Conceived the idea of the work and designed the experiments.
Arun Gupta, Amandeep Gill and G.M. Lionus Leo Performed the experiments and analysed the data.
Yuvarajan Devarajan & Ravikumar Jayapal supervised the study.
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Sheik, M.A., Beemkumar, N., Gupta, A. et al. Study the Effect of Silicon Nanofluid on the Heat Transfer Enhancement of Triangular-Shaped Open Microchannel Heat Sinks. Silicon 16, 277–293 (2024). https://doi.org/10.1007/s12633-023-02663-5
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DOI: https://doi.org/10.1007/s12633-023-02663-5