Effective heat transfer control is vital in many industrial applications that require thermal insulation. Therefore, understanding the roots of this phenomenon is the starting point for properly selecting and designing insulation solutions.
Discover the different types of heat transfer and the relevance of thermal insulation applications in this article.
The Fundamentals of Heat Transfer
Heat transfer can be defined as the process of exchange of thermal energy between two bodies or systems. If these are at different temperatures, a heat exchange occurs until a thermal equilibrium is achieved. That is a point at which temperatures equalize.
This phenomenon is closely related to heat leaks, understood as an unwanted transfer from a warmer area to a cooler one. It is important to consider that each body or system has a tendency to conduct heat to a greater or lesser extent. This is known as thermal conductivity.
Insulation solutions, therefore, form a barrier that minimizes heat transfer to the outside. In addition, insulation allows you to maintain the appropriate temperature within an industrial process, thanks to its low conductivity and heat resistance.
What are the Different Types of Heat Transfer?
There are three main types of heat transfer: conduction, radiation, and convection.
- Thermal conduction occurs when heat is transferred through a solid material or between materials in contact.
- Thermal radiation, on the other hand, is based on the emission of energy in the form of electromagnetic waves from a hot body to a colder one.
- Lastly, thermal convection involves the transfer of heat through the movement of a fluid, either liquid or gas.
You can discover more about these transfer mechanisms below.