Heat flux trough non-homogeneous bar

In summary, if both sides of a non-homogeneous bar with thermal conductivities k1 and k2 are in contact with 2 different temperatures, it can be considered equivalent to a homogeneous bar with the weighted mean of k1 and k2 as the conductivity, depending on whether they are in series or in parallel.
  • #1
AbreuEE
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When you have the both sides of a non-homogeneous bar with thermal conductivities k1 and k2 in contact to 2 different temperatures, can you consider it the same as if there was some flux going through a homogeneous bar with the weighted mean of k1 and k2 as the conductivity?
 
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  • #2
AbreuEE said:
When you have the both sides of a non-homogeneous bar with thermal conductivities k1 and k2 in contact to 2 different temperatures, can you consider it the same as if there was some flux going through a homogeneous bar with the weighted mean of k1 and k2 as the conductivity?
Yes, but you haven't told us whether they are in series or on parallel.
 

Related to Heat flux trough non-homogeneous bar

What is heat flux?

Heat flux is the amount of thermal energy that passes through a given area in a specified amount of time. It is measured in watts per square meter.

What is a non-homogeneous bar?

A non-homogeneous bar is a material with varying properties or composition along its length. This can affect the heat flux through the bar as different sections may have different thermal conductivities.

How does heat flux change through a non-homogeneous bar?

The heat flux through a non-homogeneous bar can change due to variations in thermal conductivity, temperature, and surface area. It may also be affected by the presence of any external heat sources or sinks.

How is heat flux calculated through a non-homogeneous bar?

To calculate the heat flux through a non-homogeneous bar, you will need to consider the thermal conductivity, temperature gradient, and surface area at each point along the bar. This can be done using mathematical equations such as Fourier's law of heat conduction.

What are some practical applications of studying heat flux through non-homogeneous bars?

Understanding heat flux through non-homogeneous bars can have many practical applications, such as designing efficient heat exchangers, optimizing insulation materials, and improving thermal management in electronic devices. It can also help in predicting and preventing thermal damage or failure in various industrial processes.

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