Heat Transfer- Summary
- Created by: Sally
- Created on: 21-04-13 09:45
View mindmap
- Heat Transfer
- Heat energy tends to flow away from a hotter object to its cooler surroundings.
- Heat is transferred by conduction, convection or radiation.
- Infrared radiation or thermal radiation is the transfer of heat energy by electromagnetic waves.
- Emission of thermal radiation occurs in solids, liquids and gases. Any object can both absorb and emit heat radiation, whether or not conduction or convection are also taking place.
- Conduction and convection involve the transfer of heat energy by particles.
- Conduction is the main form of heat transfer in metals.
- Convection is the main form of heat transfer in fluids (liquids and gases).
- Infrared radiation or thermal radiation is the transfer of heat energy by electromagnetic waves.
- The bigger the temperature difference, the faster heat is transferred between a body and its surroundings.
Comments
No comments have yet been made