Heat radiation between two non-parallel surfaces

In summary, heat radiation occurs between two non-parallel surfaces when there is a temperature difference between them. This transfer of thermal energy through electromagnetic waves is known as thermal radiation. The rate of heat transfer depends on the temperature difference between the surfaces and the properties of the materials. Factors such as surface area, distance between the surfaces, and the presence of reflective surfaces can also affect the amount of heat radiation. This process is important in various fields, from thermodynamics and energy transfer to everyday applications such as cooking and heating.
  • #1
tinatinatina
Hi everybody,

How do you find the heat radiation between two surfaces that aren’t perfectly parallel or perpendicular to each other?

I know that the view factors play a part, however, I can only dig up view factors for parallel and perpendicular surfaces:

http://machineryequipmentonline.com/hydraulics-and-pneumatics/wp-content/uploads/2016/03/RADIATION-HEAT-TRANSFER-0028.jpg

Is there a formula for finding the view factor and thus the radiation between surfaces between 0-180 degrees?

Many thanks,

Tina
 
Science news on Phys.org

FAQ: Heat radiation between two non-parallel surfaces

1. What is heat radiation?

Heat radiation is a form of energy transfer that occurs between objects due to a difference in temperature. It is a type of electromagnetic radiation that can travel through a vacuum, unlike conduction and convection which require a medium for energy transfer.

2. How does heat radiation occur between two non-parallel surfaces?

Heat radiation between two non-parallel surfaces occurs when there is a temperature difference between the two surfaces. The warmer surface emits thermal radiation, which is absorbed by the cooler surface. This leads to a transfer of heat energy from the warmer surface to the cooler surface.

3. Is heat radiation affected by the distance between two surfaces?

Yes, heat radiation is affected by the distance between two surfaces. The intensity of heat radiation decreases as the distance between the two surfaces increases. This is because the energy of the radiation spreads out over a larger area as it travels.

4. What factors affect the amount of heat radiation between two surfaces?

The amount of heat radiation between two surfaces is affected by several factors, including the temperature difference between the two surfaces, the surface area of the objects, and the type of material the objects are made of. The surface properties of the objects, such as reflectivity and emissivity, also play a role in the amount of heat radiation exchanged between the two surfaces.

5. How can heat radiation between two non-parallel surfaces be reduced?

To reduce the amount of heat radiation between two non-parallel surfaces, you can increase the distance between them, decrease the temperature difference between the two surfaces, or use materials with lower reflectivity and higher emissivity. Additionally, insulating materials can be used to reduce heat transfer via radiation between two surfaces.

Similar threads

A Average temperature in a greenhouse
Replies
2
Views
1K
Difference between IR and heat
2
Replies
43
Views
6K
Radiation heat transfer in channel flow
Replies
1
Views
2K
Why is solar radiation equal to long wavelength emission?
Replies
3
Views
2K
Heat transfer between two cylinders
Replies
2
Views
2K
Radiation heat transfer between parallel plates
Replies
30
Views
4K
ANSYS - Radiation of a satellite - Surface-to-surface or to-ambient
Replies
1
Views
2K
Heat Transfer Through a Two Material System due to a Light Source
Replies
10
Views
2K
Is a radiation heat pump possible
Replies
19
Views
3K
Does Radiation Intensity depend on [itex]\theta [/itex]?
Replies
5
Views
2K

Hot Threads

Recent Insights

Back
Top