9 Examples Of Radiation Heat Transfer: You Must Know

In our daily life, we feel the warmth from different sources of radiation heat transfer. Following is the list of radiation heat transfer examples:

Sunlight : 

You always feel your face getting warmer when you stand in the sunlight. And if you continue standing then you get body tan. It is because of the radiation coming from sunlight. Sun emits different radiation like UV, Visible, Infrared etc. which travels larger distances to reach up to earth. It is because of the fact that the sun is a hotter object and the objects which are hotter, continue to radiate heat energy in radiation form. Hence, radiation heat transfer from the sun makes your skin feel warm and eventually the formation of body tan.  

Radiation Heat Transfer Examples

Image Credits: Chiranjeevee chiru, Wings of fire, Turn your face to the sun and let the shadows fall behind you, CC BY-SA 4.0


Fires frequently start when hot embers from a blazing fire are placed near wood that isn’t currently burning. In that scenario, infrared radiation was responsible for transferring heat from the hot coals to the colder wood, causing the wood to ignite. Those with greater temperatures release more radiation unit area than systems with lower temperatures. Radiation travels in both directions across systems that may exchange radiant energy, although more energy travels from the hotter to the colder item. This net flow of energy is referred to as heat.

Radiation Heat Transfer Examples

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Incandescent light bulbs produce light by heating a tiny metal filament contained in a glass bulb filled with inert gas. Electricity is used to heat the filament till it glows. Whenever the lamp is switched on, the light bulb becomes extremely hot. In addition to radiation transmission, some of the heat emitted by the bulb is transmitted to the glass when the bulb heats up. Radiation happens when heat is transmitted between two things that are not in direct contact with one another.

Radiation Heat Transfer Examples

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During the winter months, individuals prefer to be in a warm environment, and for this reason, they may opt to sit around a bonfire also called a campfire. In the event of ignition, a campfire begins to warm the environment around it. This occurs as a result of the transmission of heat from the campfire to the surrounding environment through radiation. Radiation from the hot fire causes the surrounding air to get warmer, which in turn leads those who are sitting around it to become warmer.

Radiation Heat Transfer Examples

Image Credits: Image by James Wheeler from Pixabay 


Recently developing technology of the electronics such as televisions, smartphones, computers, and tablets, among other things, emit a little amount of heat. We aren’t even conscious of the warmth since the amount is so little. Because of the radiation emitted by electronics, this warmth or heat is experienced by the user. Consequently, the electronics examples stated above are radiation heat transfer examples that we can physically feel in our daily lives.

Radiation Heat Transfer Examples

Image Credits: “TV on the Wall” (CC BY 2.0) by cogdogblog

Pan on the burner: 

If we leave the pan on the burner for an extended period of time, we will see that the pan will become hot owing to conduction, which is a form of heat transmission that occurs. Maintaining a safe distance above or nearby while heating the pan will allow you to feel the warmth on your hand as the pan heats up further. This is due to the radiation heat transfer that is occurring between the burner and the heated pan, which is responsible for this. The radiation emitted by these two objects continues to heat the air around them, resulting in a warm sensation in the surrounding area.

Radiation Heat Transfer Examples

Image Credits: anonymous, Wok-on-chinese-stove, CC BY 1.0

Solar equipment: 

All forms of solar technology that are capable of reducing power use rely on the radiation heat energy obtained from the sun to operate. Because sunlight from the sun is a form of heat radiation, it may be used to power solar energy equipment, which can be used to both create and save energy.

Radiation Heat Transfer Examples

Image Credits: David Shankbone creator QS:P170,Q12899557, Photovoltaic arrays at the Israeli National Solar Energy Center, CC BY 3.0

Microwave oven: 

These days, the microwave oven is rapidly becoming the most often used kitchen equipment in most households. Using this device, you may cook or heat the food that is stored inside it. The fundamental operating concept of a microwave oven is simply the transfer of heat through microwave radiation, as the name implies. These microwave radiation rays from the electromagnetic spectrum transmit heat energy, resulting in the cooking of food in a short time.

Radiation Heat Transfer Examples

Image Credits: Bestwattage, Best Microwave Oven in India, CC BY-SA 4.0


If you light a candle and place it in a tiny, closed dark room, you will notice that the temperature of the small room begins to rise after a period of time. This occurs as a result of heat transmission from the candle’s flame, which occurs through radiation. The radiation from the flame heats the air surrounding it, and soon one can feel the warmth coming from it.

Radiation Heat Transfer Examples

Image Credits: “One burning candle on a dark background” (CC BY 2.0) by wuestenigel

So, these all are the radiation heat transfer examples in our surroundings. As per the scientific explanation for this phenomenon of radiation heat transfer, all matter with a temperature higher than absolute zero generates electromagnetic radiation as a result of charged particle oscillations inside it. As a result, every substance in our entire universe emits radiation.

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