Please enable JavaScript.

Coggle requires JavaScript to display documents.

Radiation (Ri Tong) - Coggle Diagram

- - - - Prevents the setup of convection currents.
      - Reduces heat loss by convection
    - - Air is a good insulator of heat.
      - Reduces heat loss by convection
    - - It does not have any particles.
      - Reduces heat loss by conduction and convection
    - - Silvery wall reflects radiant heat back into the liquid.
      - Reduces heat loss by radiation
- - - - Radiator/emitter
        
        ANY objects that give off heat in the form of radiation
      - Absorber
        
        ANY objects that take in heat in the form of radiation
      - Reflector
        
        ANY objects that bounce off radiation
    - - Surface area of an object.
        
        If an object has a larger surface area, the rate of heat transfer by radiation is faster.
      - Colour and texture of an object.
        
        Black, dull and rough surfaces are the best absorbers and emitters of radiant heat. Hence, they are the poor reflectors of heat.
        
        White, shiny and smooth surfaces are the poor absorbers and emitters of heat. Hence, they are the good reflectors of heat.
      - Surface temperature of an object.
        
        If the surface of an object has a higher temperature, it will radiate heat at a higher rate.