What is Radiation Heat Transfer?

Radiation heat transfer is heat transfer without going through an intermediate medium, usually accompanied by light. Radiation can't be seen, it can only be felt. Discussion Radiation can also be said to be energy emitted in the form of particles or waves. 

In addition to radiation, heat transfer can occur conduction and convection Conduction is the transfer of heat through solids in the absence of the transfer of solid particles. Heat flows from a higher temperature to a lower temperature, when contact or contact occurs. Convection is the transfer of heat through liquids or gases in the presence of a flow of displacement of particles. When the particles are heated, the temperature increases and the distance between the particles moves away from each other. It is because of this movement that heat transfer occurs. 

Examples of radiation heat transfer are as follows:

1. The heat of the sun reaches the earth through a vacuum. 
2. Heat radiation from light bulbs. 
3. Heat radiation from furnaces, usually in air-conditioned countries. 
4. Hatch chicken or duck eggs using a light beam. 
5. Drying clothes or raw foodstuffs during the day. 
6. Infrared lights are used to maintain the temperature of food in the restaurant. 
7. Medical imaging equipment such as X-rays, MRI, and CT Scans. 
8. Microwave oven. 
9. Airport security scanner. 
10. Radiation therapy for cancer.