A comprehensive review on pool boiling of nanofluids

• A review on the pool boiling heat transfer of nanofluid is presented and discussed.
• Nanoparticle deposition considerably affects the boiling heat transfer.
• The HTC decreases due to the low contact angle and the high adhesion energy.
• The HTC increases due to the formation of the new cavities and liquid suction.
• The CHF increases due to the increase in roughness, wettability and capillarity.

Nanofluids are nanoparticle suspensions of small particle size and low concentration dispersed in base fluids such as water, oil and ethylene glycol. These fluids have been considered by researchers as a unique heat transfer carrier because of their thermophysical properties and a great number of potential benefits in traditional thermal engineering applications, including power generation, transportation, air conditioning, electronics devices and cooling systems. Many attempts have been made in the literature on nanofluid boiling; however, data on the boiling heat transfer coefficient (HTC) and the critical heat flux (CHF) have been inconsistent. This paper presents a review of recent researches on the pool boiling heat transfer behaviour of nanofluid. First, the development of nanofluids and their potential applications are briefly given. Then, the effects of various parameters on nanofluids pool boiling are discussed in detail.