**Author details**

*Heat Transfer - Design, Experimentation and Applications*

from the graph representing the lowest temperature of 310.01 K for the concentration of 0.1 vol. % graphene-iron oxide system for 0.5 mm fin spacing while for water it is 317.05 K. These hybrid coolants because of their high thermal conductivity are capable of removing more heat when used in microchannels. The percentage reduc-

tion in base temperature when using graphene-iron oxide is 1.96%.

found to be 0.994 which validates the model.

*Simulated base temperature versus flow rate - graphene-iron oxide.*

**5. Comparison of simulated and experimental base temperatures**

**Figure 11** shows the comparison of simulated and experimental base temperatures for 0.1 volume % graphene – iron oxide and the correlation coefficient was

The present work indicates the usage of graphene as one of the components in the synthesis of hybrid nanofluids for CPU cooling by microchannel cooling

*Validation of experimental and simulated values of T base – 0.1 volume % graphene-iron oxide.*

**116**

**6. Conclusion**

**Figure 11.**

**Figure 10.**

Chitra Boobalan1 , Sudha Ganesh2 and Parthiban Rangaswamy1 \*

1 Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Tamilnadu, India

2 Department of Chemical Engineering, Sri Venkateswara College of Engineering, Pennalur, Tamilnadu, India

\*Address all correspondence to: parthibanr@ssn.edu.in

© 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, provided the original work is properly cited.
