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| Convection (Intro) |
- Transfer of energy due to bulk motion of the fluid and random molecular motion.
- Newton’s law of cooling
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(1.2) |
- Where h, is heat transfer coefficient (W/m2.K), Ts is the surface temperature and Tb is some reference temperature. The reference temperature is chosen so that ‘h’ is constant.
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| Radiation (Intro.) |
- Energy transfer due to electro-magnetic waves.
- Equation often used for radiation calculations:
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(1.3) |
- ε, is emissivity of the surface, σ is Stefan-Boltzmann constant
- σ = 5.67 x 10-8 W/m2.K4), Ts is a surface temperature and Tsurr is an appropriate surrounding temperature
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