Heat Transfer Methods
Learning Objectives
- Students will be able to distinguish between conduction, convection, and radiation
- Students will be able to explain the mechanism of each heat transfer method at the particle level
- Students will be able to identify which transfer methods occur in different situations
Core Concepts
- conduction
- convection
- radiation
- thermal_contact
- electromagnetic_waves
- density_difference
Formulas
$$Q = \frac{kA\Delta T}{d}$$
Heat conduction (k is thermal conductivity)
$$Q = \sigma A T^4$$
Thermal radiation (Stefan-Boltzmann Law)
Units
| thermal conductivity | W/m·K |
| stefan-boltzmann constant | σ = 5.67×10⁻⁸ W/m²·K⁴ |
Interesting Fact
Thermos bottles minimize all three types of heat transfer: reflective coatings reduce radiation, vacuum layer blocks conduction and convection
Key Scientist
Stephen Stefan
Developed Stefan-Boltzmann Law for thermal radiation
Ancient Wisdom
The transmission of energy through space (radiation) without medium connects to mystical concepts of non-local influence and subtle energy transmission.
Want to truly master this? Try the interactive lesson!
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