Boiling Features and Performances of Nanofluids

Abstract

Boiling processes have continuously received attention due to their heat transfer efficiency and wide applicability. However, with technological developments, there is a need to enhance cooling performance to maintain proper functioning of high-power devices. In this regard, the boiling of nanofluids emerges as an promising alternative. Nanofluids are recognized to have good thermophysical properties and their application in boiling systems can be a great advantage for improvement in boiling performance, namely critical heat flux (CHF) and heat transfer coefficient (HTC). However, both HTC and CHF are affected by many parameters related to the properties and surface features of nanofluids. In this chapter, the effects of surface roughness, wettability, and surfactant addition on boiling performance, combined with nanofluids characteristics are presented and discussed. Effort has also been made to comprise the outcomes of the most relevant research developed in this area and coherently explain the major findings.