Research Article
A Novel Heat Sink Design and Prototyping for LED Desk Lamps
Table 1
Properties of air at 20°C.
| | Thermal Conductivity (W/m·k) | 0.0257 |
| | Specific heat (kJ/kg·K) | 1005 |
| | Density (kg/m3) | 1.205 |
| | Viscosity (m2/s) | 1.511 × 10−5 |
| | Coefficient of thermal expansion (1/K) | 3.43 × 10−3 |
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