**3. Applications**

As it has been mentioned in the introduction of this chapter heat transfer appears in many daily activities. Therefore, there is a wide range of fields in which thermal energy is studied.

It is mandatory to perform a thermal analysis when developing heat exchangers designed to transport heat from one point to another. For that, it is vital to identify which kind of heat sink best fits the application (can natural convection be used, or it should include some forced convection? For example). This analysis is also useful because the conditions under which heat is being transferred will determine the material of the systems that is being used, requirements about auxiliary consumption, limit of maximum temperatures of operation, and so on.

Heat transfer analysis is also crucial in electronic applications that are continuously growing with higher consumptions, and therefore, higher thermal management requirements. As Murshed explains, power electronics are facing a huge challenge in removing high heat fluxes maintaining a low temperature in the device [10].

Conventional heat transfer approaches are still being used, but there are some other new technologies that are being included in these applications such as: nanofluids, phase change devices, and so on.

#### **4. Conclusions**

The chapters included in this book are a good example of how scientists, researchers and engineers from the industry are solving heat transfer issues that appear in many fields. You will find computational models, the use of nanofluids in heat transfer devices, an optimization of a bunch of heat exchangers, and several samples of thermal management in different applications.

**5**

**Author details**

Public University of Navarre, Pamplona, Spain

provided the original work is properly cited.

\*Address all correspondence to: miguel.araiz@unavarra.es

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

Miguel Araiz

*Introductory Chapter: Heat Transfer*

*DOI: http://dx.doi.org/10.5772/intechopen.99347*

*Introductory Chapter: Heat Transfer DOI: http://dx.doi.org/10.5772/intechopen.99347*

*Heat Transfer - Design, Experimentation and Applications*

study and then check for the best method to model it.

**2.2 Experimental analysis**

**3. Applications**

device [10].

**4. Conclusions**

thermal energy is studied.

properly once it has been built. Besides, by using these models a sensitive analysis can be performed to check which parameter is affecting more to the results of the system. There are many ways to develop these models, using different solving techniques. It is essential to understand the heat transfer phenomena you want to

Another approach to study heat transfer problems is to design and build an experimental test bench. Sometimes it is so difficult to theoretically model a thermal energy system that it is more convenient to analyze the problem experimentally. Therefore, an experimental rig is employed to obtain useful results of the cases under study. Often, all these rigs allow the researcher to modify the boundary conditions affecting the system, so the problem can be tested under different circumstances. These test benches are also useful to validate the computational models

As it has been mentioned in the introduction of this chapter heat transfer appears in many daily activities. Therefore, there is a wide range of fields in which

It is mandatory to perform a thermal analysis when developing heat exchangers designed to transport heat from one point to another. For that, it is vital to identify which kind of heat sink best fits the application (can natural convection be used, or it should include some forced convection? For example). This analysis is also useful because the conditions under which heat is being transferred will determine the material of the systems that is being used, requirements about auxiliary consumption,

Heat transfer analysis is also crucial in electronic applications that are continuously growing with higher consumptions, and therefore, higher thermal management requirements. As Murshed explains, power electronics are facing a huge challenge in removing high heat fluxes maintaining a low temperature in the

Conventional heat transfer approaches are still being used, but there are some other new technologies that are being included in these applications such as: nano-

The chapters included in this book are a good example of how scientists, researchers and engineers from the industry are solving heat transfer issues that appear in many fields. You will find computational models, the use of nanofluids in heat transfer devices, an optimization of a bunch of heat exchangers, and several

and check if they can properly predict the behavior of the system.

limit of maximum temperatures of operation, and so on.

samples of thermal management in different applications.

fluids, phase change devices, and so on.

**4**
