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Technical Corner |
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Modes of Heat Transfer
- Conduction: heat flows from higher temperature region to a lower temperature. This occurs in solid, liquid or gaseous mediums that make physical contact
- Convection: the combined action of conduction, energy storage and mixing motion
- Radiation: heat flows from a higher temperature to a lower temperature when bodies are separated in space
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Pros
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Cons
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Free Convection
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Low cost
High reliability
Low noise
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Poor cooling capacity
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Conduction (heat sinks)
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Low cost
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Limited cooling capacity
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Forced Convection (fans)
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Moderate to good cooling
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Medium/high cost
Noise
Reliability
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Refrigeration
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High cooling capacity
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High cost
Reliability
Maintainability
Size
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