Conduction, convection, or radiation?
The heat you feel from a fireplace
Assistance needed.
Please type your subject in the School Subject box. Any other words are likely to delay responses from a teacher who knows that subject well.
Since this is not my area of expertise, I searched Google under the key words "conduction convection radiation" to get these possible sources:
http://www.mansfieldct.org/schools/MMS/staff/hand/convcondrad.htm
http://www.wisc-online.com/objects/index_tj.asp?objid=SCE304
http://www.electrical-res.com/EX/10-17-00/heat-transmittance-means.jpg
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps.
The heat you feel from a fireplace is primarily due to radiation.
The heat you feel from a fireplace is mainly transferred through radiation.
Explanation:
To determine whether conduction, convection, or radiation is responsible for heat transfer, we need to understand the characteristics of each method.
1. Conduction: This process involves the transfer of heat through direct contact between particles or objects. Heat is conducted from hotter to colder regions within an object or between two different objects in contact. For example, if you touch a hot metal pan, heat is conducted from the pan to your hand.
2. Convection: Convection occurs when heat is transferred through the movement of fluids such as gases or liquids. It involves the process of heat being carried away by the motion of the fluid. An example would be the heat transfer from a hot pan to the surrounding air.
3. Radiation: Radiation is the transfer of heat through electromagnetic waves. Unlike conduction and convection, radiation does not require a medium to travel through. Heat is directly emitted in the form of electromagnetic waves from a hot object and absorbed by another object, causing an increase in temperature. An example would be sitting near a fireplace and feeling the warmth from the fire, even without being in direct contact with it.
In the case of a fireplace, the heat you feel is primarily due to radiation. The burning wood or fuel emits infrared radiation, which travels in straight lines and reaches your body or other objects in the room, heating them. This is why you can feel the warmth of a fireplace even from a distance. However, some convection may also occur as the heated air rises and circulates in the room, although it is usually secondary to radiation when it comes to the overall heat transfer from a fireplace.